Infiniti M (2012 year). Manual - part 3

PCS

PRECAUTIONS

PCS-35

< PRECAUTION >

[POWER DISTRIBUTION SYSTEM]

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000006887718

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precautions Necessary for Steering Wheel Rotation After Battery Disconnection

INFOID:0000000006887719

CAUTION:

Comply with the following cautions to prevent any error and malfunction.
• Before removing and installing any control units, first turn the ignition switch to the LOCK position,

then disconnect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect

both battery cables.

• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing

work. If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.

OPERATION PROCEDURE

1.

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

2.

Turn the ignition switch to ACC position.
(At this time, the steering lock will be released.)

3.

Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.

2012 M

PCS-36

< PRECAUTION >

[POWER DISTRIBUTION SYSTEM]

PRECAUTIONS

4.

Perform the necessary repair operation.

5.

When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock
when the ignition switch is turned to LOCK position.)

6.

Perform self-diagnosis check of all control units using CONSULT.

2012 M

PCS

COMPONENT PARTS

PCS-37

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000006887720

Component Description

INFOID:0000000006887721

BCM

INFOID:0000000006887722

BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.

Ignition Relay

INFOID:0000000006887723

BCM turns ON the following relays to supply ignition power supply or ignition switch ON signal to each ECU
when the ignition switch is turned ON.
• Ignition relay (fuse block)
• Ignition relay (IPDM E/R)
• Blower relay
BCM compares following status comparing.
• Ignition relay (fuse block) control signal, and power supply position judged by BCM

1.

Push-button ignition switch

2.

IPDM E/R
Refer to 

PCS-5, "IPDM E/R : Com-

ponent Parts Location"

3.

Stop lamp switch
Refer to 

BRC-9, "Component Parts 

Location"

4.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

5.

TCM
Refer to 

TM-10, "A/T CONTROL 

SYSTEM : Component Parts Loca-
tion"

JMMIA0428ZZ

BCM

Reference

BCM

PCS-37

Ignition relay

PCS-37

Accessory relay

PCS-38

Blower relay

PCS-38

Push-button ignition switch

PCS-38

TCM

SEC-9

Stop lamp switch

SEC-11

2012 M

PCS-38

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

COMPONENT PARTS

• Ignition relay (IPDM E/R) control request, and Ignition relay (IPDM E/R) status

Accessory Relay

INFOID:0000000006887724

BCM turns ON the accessory relays to supply accessory power supply or ignition switch ACC signal to each
ECU when the ignition switch is turned ACC or ON.
BCM compares status of accessory relay control signal, and power supply position judged by BCM.

Blower Relay

INFOID:0000000006887725

BCM turns ON the following relays to supply ignition power supply or ignition switch ON signal to each ECU
when the ignition switch is turned ON.
• Ignition relay (fuse block)
• Ignition relay (IPDM E/R)
• Blower relay
BCM compares status of blower relay control signal, and power supply position judged by BCM.

Push-Button Ignition Switch

INFOID:0000000006887726

BCM transmits the change in the power supply position with the push-button ignition switch to IPDM E/R via
CAN communication line. IPDM E/R transmits the power supply position status via CAN communication line to
BCM.

2012 M

PCS

SYSTEM

PCS-39

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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SYSTEM

POWER DISTRIBUTION SYSTEM

POWER DISTRIBUTION SYSTEM : System Diagram

INFOID:0000000006887727

POWER DISTRIBUTION SYSTEM : System Description

INFOID:0000000006887728

SYSTEM DESCRIPTION

• PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the operation of the push-

button ignition switch and performs the power distribution to each power circuit. This system is used instead
of the mechanical power supply changing mechanism with the operation of the conventional key cylinder.

• The push-button ignition switch can be operated when Intelligent Key is in the following condition.
- Intelligent Key is in the detection area of the inside key antenna.
- Intelligent Key backside is contacted to push-button ignition switch.
• The push-button ignition switch operation is input to BCM as a signal. BCM changes the power supply posi-

tion according to the status and operates the following relays to supply power to each power circuit.

- Ignition relay (IPDM E/R)
- Ignition relay (fuse block)
- ACC relay
- Blower fan relay
• The power supply position changes due to the conditions of push-button ignition switch operation, brake

pedal, clutch pedal, selector lever and vehicle speed.

NOTE:
• The power supply position can be confirmed with the lighting of the indicators near the push-button ignition

switch.

• For models without steering lock unit, power supply position changes from “OFF” to “LOCK” when steering

lock conditions are satisfied.

BATTERY SAVER SYSTEM

When all the following conditions are met for 60 minutes, the battery saver system will cut off the power supply
to prevent battery discharge.
• The ignition switch is in the ACC position
• All doors are closed
• Selector lever is in the P position

Reset Condition of Battery Saver System

If any of the following conditions are met the battery saver system is released and the steering will change
automatically to the LOCK position from the OFF position.
• Opening any door
• Operating with door key cylinder on door lock
• Operating with request switch on door lock
• Operating with Intelligent Key on door lock

JMMIA0385GB

2012 M

PCS-40

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

SYSTEM

Press push-button ignition switch and ignition switch will change to the ACC position from the OFF position.

STEERING LOCK OPERATION (MODELS WITH STEERING LOCK UNIT)

Steering is locked by steering lock unit when ignition switch is in the OFF position, selector lever is in the P
position and any of the following conditions are met.
• Opening door
• Closing door
• Door is locked with door request switch
• Door is locked with Intelligent Key

POWER SUPPLY POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION

The power supply position changing operation can be performed with the following operations.
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna and when Intelligent Key backside

is contacted to push-button ignition switch, it is equivalent to the operations below.

• When starting the engine, the BCM monitors under the engine start conditions,
- Brake pedal operating condition
- Selector lever position
- Vehicle speed

Vehicle speed: less than 4 km/h (2.5 MPH)

Vehicle speed: 4 km/h (2.5 MPH) or more

Emergency stop operation

• Press and hold the push-button ignition switch for 2 seconds or more.

• Press the push-button ignition switch 3 times or more within 1.5 seconds.

Fail-safe

INFOID:0000000007215652

FAIL-SAFE CONTROL BY DTC

BCM performs fail-safe control when any DTC are detected.

Power supply position

Engine start/stop condition

Push-button ignition switch op-

eration frequency

Selector lever position

Brake pedal operation condition

LOCK 

→

 ACC

—

Not depressed

1

LOCK 

→

 ACC 

→

 ON

—

Not depressed

2

LOCK 

→

 ACC 

→

 ON 

→

 

OFF

—

Not depressed

3

LOCK 

→

 START

ACC 

→

 START

ON 

→

 START

P or N position

Depressed

1

Engine is running 

→

 OFF

—

—

1

Power supply position

Engine start/stop condition

Push-button ignition switch op-

eration frequency

Selector lever position

Brake pedal operation condition

Engine is running 

→

 ACC 

—

—

Emergency stop operation

Engine stall return opera-
tion while driving 

N position

Not depressed

1

Display contents of CONSULT

Fail-safe

Cancellation

B2013: ID DISCORD BCM-S/L

Inhibit engine cranking

When communication between BCM and steering lock unit are commu-
nicated normally.

B2014: CHAIN OF S/L-BCM

Inhibit engine cranking

When communication between BCM and steering lock unit are commu-
nicated normally.

B2192: ID DISCORD BCM-ECM

Inhibit engine cranking

Erase DTC

B2193: CHAIN OF BCM-ECM

Inhibit engine cranking

Erase DTC

2012 M

PCS

SYSTEM

PCS-41

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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B2195: ANTI-SCANNING

Inhibit engine cranking

Ignition switch ON 

→

 OFF

B2196: DONGLE NG

Inhibit engine cranking

Erase DTC

B2198: NATS ANTENNA AMP

Inhibit engine cranking

Erase DTC

B2557: VEHICLE SPEED

Inhibit steering lock

When the following CAN signal status (vehicle speed signal) becomes 
consistent 
• Vehicle speed signal (ABS)
• Vehicle speed signal (Meter)

B2601: SHIFT POSITION

Inhibit steering lock

500 ms after the following signal reception status becomes consistent
• P position switch signal
• P range signal (CAN)

B2602: SHIFT POSITION

Inhibit steering lock

5 seconds after the following BCM recognition conditions are fulfilled
• Ignition switch is in the ON position
• P position switch signal: Except P position (battery voltage)
• Vehicle speed: 4 km/h (2.5 MPH) or more

B2603: SHIFT POSI STATUS

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Ignition switch is in the ON position
- P position switch signal: Except P position (12 V)
- P/N position signal: Except P and N positions (0 V)
• Status  2
- Ignition switch is in the ON position
- P position switch signal: P position (0 V)
- P/N position signal: P or N positions (12 V)

B2604: PNP/CLUTCH SW

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Ignition switch is in the ON position
- P/N position signal: P or N position (12 V)
- Shift position signal (CAN): P or N position
• Status  2
- Ignition switch is in the ON position
- P/N position signal: Except P and N positions (0 V)
- Shift position signal (CAN): Except P and N position

B2605: PNP/CLUTCH SW

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Power position: IGN
- P/N position signal: Except P and N positions (0 V)
- Interlock/PNP switch signal (CAN): OFF
• Status  2
- Ignition switch is in the ON position
- P/N position signal: P or N position (12 V)
- Interlock/PNP switch signal (CAN): ON

B2608: STARTER RELAY

Inhibit engine cranking

500 ms after the following signal communication status becomes con-
sistent
• Starter motor relay control signal
• Starter relay status signal (CAN)

B2609: S/L STATUS

• Inhibit engine crank-

ing

• Inhibit steering lock

When the following steering lock conditions agree
• BCM steering lock control status
• Steering lock condition No. 1 signal status
• Steering lock condition No. 2 signal status

B260B: STEERING LOCK UNIT

Inhibit steering lock

Erase DTC

B260D: STEERING LOCK UNIT

Inhibit steering lock

Erase DTC

B260F: ENG STATE SIG LOST

Inhibit engine cranking

When any of the following conditions are fulfilled
• Power position changes to ACC
• Receives engine status signal (CAN)

Display contents of CONSULT

Fail-safe

Cancellation

2012 M

PCS-42

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

SYSTEM

FAIL-SAFE CONTROL BY RAIN SENSOR MALFUNCTION

BCM detects the light and rain sensor serial link error and the rain sensor malfunction.
BCM controls the following fail-safe when rain sensor has a malfunction.
• Front wiper switch AUTO and sensing rain drop: The condition just before the activation of fail-safe is main-

tained until the front wiper switch is turned OFF.

• Front wiper switch AUTO and not sensing rain drop: Front wiper is LO operation until the front wiper switch is

turned off.

FAIL-SAFE CONTROL OF COMBINATION SWITCH READING FUNCTION CAUSED BY LOW
POWER SUPPLY VOLTAGE

If voltage of battery power supply lower, BCM maintains combination switch reading to the status when input
voltage is less than approximately 9 V.
NOTE:
When voltage of battery power supply is approximately 9 V or more, combination switch reading function
returns to normal operation.

B2612: S/L STATUS

• Inhibit engine crank-

ing

• Inhibit steering lock

When any of the following conditions are fulfilled
• Steering lock unit status signal (CAN) is received normally
• The BCM steering lock control status matches the steering lock status 

recognized by the steering lock unit status signal (CAN from IPDM E/
R)

B2619: BCM

Inhibit engine cranking

1 second after the steering lock unit power supply output control inside 
BCM becomes normal

B26EF: STRG LCK RELAY OFF

Inhibit engine cranking

When the following conditions are fulfilled
• Steering lock relay signal (CAN): ON
• Steering lock unit status signal (CAN): ON

B26F0: STRG LCK RELAY ON

Inhibit engine cranking

When the following conditions are fulfilled
• Steering lock relay signal (CAN): OFF
• Steering lock unit status signal (CAN): OFF

B26F1: IGN RELAY OFF

Inhibit engine cranking

When the following conditions are fulfilled
• Ignition switch ON signal (CAN: Transmitted from BCM): ON
• Ignition switch ON signal (CAN: Transmitted from IPDM E/R): ON

B26F2: IGN RELAY ON

Inhibit engine cranking

When the following conditions are fulfilled
• Ignition switch ON signal (CAN: Transmitted from BCM): OFF
• Ignition switch ON signal (CAN: Transmitted from IPDM E/R): OFF

B26F3: START CONT RLY ON

Inhibit engine cranking

When the following conditions are fulfilled
• Starter control relay signal (CAN: Transmitted from BCM): OFF
• Starter control relay signal (CAN: Transmitted from IPDM E/R): OFF

B26F4: START CONT RLY OFF

Inhibit engine cranking

When the following conditions are fulfilled
• Starter control relay signal (CAN: Transmitted from BCM): ON
• Starter control relay signal (CAN: Transmitted from IPDM E/R): ON

B26F7: BCM

Inhibit engine cranking 
by Intelligent Key sys-
tem

When room antenna and luggage room antenna functions normally

U0415: VEHICLE SPEED

Inhibit steering lock

When vehicle speed signal (Meter) (CAN) is received normally

Display contents of CONSULT

Fail-safe

Cancellation

2012 M

PCS

DIAGNOSIS SYSTEM (BCM)

PCS-43

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000007215653

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

×

: Applicable item

*: This item is not used.

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

CAN Diag Support Monitor

Monitors the reception status of CAN communication viewed from BCM.

Data Monitor

The BCM input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from BCM.

Ecu Identification

The BCM part number is displayed.

Configuration

• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

Work Support

Data Monitor

Active Test

Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

—

AIR CONDITONER*

×

×

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

Body control system

BCM

×

IVIS - NATS

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Trunk lid open

TRUNK

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

—

AIR PRESSURE MONITOR*

×

×

×

2012 M

PCS-44

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

DIAGNOSIS SYSTEM (BCM)

NOTE:
*: For models without steering lock unit, power supply position changes from “OFF” to “LOCK” when steering
lock conditions are satisfied.

INTELLIGENT KEY

INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)

INFOID:0000000007215654

WORK SUPPORT

CONSULT screen item

Indication/Unit

Description

Vehicle Speed

km/h

Vehicle speed of the moment a particular DTC is detected

Odo/Trip Meter

km

Total mileage (Odometer value) of the moment a particular DTC is detected

Vehicle Condition

SLEEP>LOCK

Power position status of 
the moment a particular 
DTC is detected

While turning BCM status from low power consumption mode to 
normal mode (Power supply position is “LOCK”*)

SLEEP>OFF

While turning BCM status from low power consumption mode to 
normal mode (Power supply position is “OFF”.)

LOCK>ACC

While turning power supply position from “LOCK” *to “ACC”

ACC>ON

While turning power supply position from “ACC” to “IGN”

RUN>ACC

While turning power supply position from “RUN” to “ACC” (Vehicle 
is stopping and selector lever is except P position.)

CRANK>RUN

While turning power supply position from “CRANKING” to “RUN” 
(From cranking up the engine to run it)

RUN>URGENT

While turning power supply position from “RUN“ to “ACC” (Emer-
gency stop operation)

ACC>OFF

While turning power supply position from “ACC” to “OFF”

OFF>LOCK

While turning power supply position from “OFF” to “LOCK”*

OFF>ACC

While turning power supply position from “OFF” to “ACC”

ON>CRANK

While turning power supply position from “IGN” to “CRANKING”

OFF>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode

LOCK>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”*.) to low power consumption mode

LOCK

Power supply position is “LOCK” (Ignition switch OFF with steer-
ing is locked.)*

OFF

Power supply position is “OFF” (Ignition switch OFF with steering 
is unlocked.)

ACC

Power supply position is “ACC” (Ignition switch ACC)

ON

Power supply position is “IGN” (Ignition switch ON with engine 
stopped)

ENGINE RUN

Power supply position is “RUN” (Ignition switch ON with engine 
running)

CRANKING

Power supply position is “CRANKING” (At engine cranking)

IGN Counter

0 - 39

The number of times that ignition switch is turned ON after DTC is detected
• The number is 0 when a malfunction is detected now.
• The number increases like 1 

→

 2 

→

 3...38 

→

 39 after returning to the normal condition 

whenever ignition switch OFF 

→

 ON.

• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

2012 M

PCS

DIAGNOSIS SYSTEM (BCM)

PCS-45

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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Monitor item

Description

INSIDE ANT DIAGNOSIS

This function allows inside key antenna self-diagnosis

LOCK/UNLOCK BY I-KEY

Door lock/unlock function by door request switch mode can be changed to operation in this 
mode
• On: Operate
• Off: Non-operation

ENGINE START BY I-KEY

Engine start function mode can be changed to operation with this mode 
• On: Operate
• Off: Non-operation

TRUNK/GLASS HATCH OPEN

Buzzer reminder function mode by trunk lid opener request switch and Intelligent Key can be 
changed to operation with this mode
• On: Operate
• Off: Non-operation

PANIC ALARM SET

Panic alarm button pressing time on Intelligent Key remote control button can be selected from 
the following with this mode
• MODE 1: 0.5 sec
• MODE 2: Non-operation
• MODE 3: 1.5 sec

TRUNK OPEN DELAY

Trunk button pressing on Intelligent Key can be selected as per the following in this mode.
• MODE 1: Press and hold
• MODE 2: Press twice
• MODE 3: Press and hold, or press twice

LO- BATT OF KEY FOB WARN

Intelligent Key low battery warning mode can be changed to operation with this mode 
• On: Operate
• Off: Non-operation

ANTI KEY LOCK IN FUNCTI

Key reminder function mode can be changed to operation with this mode
• On: Operate
• Off: Non-operation

HAZARD ANSWER BACK

Hazard reminder function mode by door request switch and Intelligent Key button can be se-
lected from the following with this mode
• Lock Only: Door lock operation only
• Unlock Only: Door unlock operation only
• Lock/Unlock: Lock and unlock operation
• Off: Non-operation

ANS BACK I-KEY LOCK

Buzzer reminder function (lock operation) mode by door request switch can be selected from 
the following with this mode 
• Horn Chirp: Sound horn
• Buzzer: Sound Intelligent Key warning buzzer
• Off: Non-operation

ANS BACK I-KEY UNLOCK

Buzzer reminder function (unlock operation) mode by door request switch can be changed to 
operation with this mode
• On: Operate
• Off: Non-operation

SHORT CRANKING OUTPUT

Starter motor can operate during the times below
• 70 msec
• 100  msec
• 200  msec

CONFIRM KEY FOB ID

It can be checked whether Intelligent Key ID code is registered or not in this mode

AUTO LOCK SET

Auto door lock operation time can be changed in this mode
• MODE 1: OFF
• MODE 2: 30 sec
• MODE 3: 1 minute
• MODE 4: 2 minutes
• MODE 5: 3 minutes
• MODE 6: 4 minutes
• MODE 7: 5 minutes

2012 M

PCS-46

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

DIAGNOSIS SYSTEM (BCM)

SELF-DIAG RESULT

Refer to 

BCS-57, "DTC Index"

.

DATA MONITOR

HORN WITH KEYLESS LOCK

Horn reminder function mode by Intelligent Key button can be selected from the following with 
this mode
• On: Operate
• Off: Non-operation

PW DOWN SET

Unlock button pressing time on Intelligent Key button can be selected from the following with 
this mode
• MODE 1: 3 sec
• MODE 2: Non-operation
• MODE 3: 5 sec

WELCOME LIGHT SELECT

Welcome light function mode can be selected from the following with this mode
• Puddle/Outside Handle
• Room lamp
• Head & Tail Lamps (this item is displayed, but cannot be used)
• Heart Beat

WELCOME LIGHT OP SET

Welcome light function mode can be changed to operation with this mode
• On: Operate
• Off: Non-operation

INTELLIGENT KEY SETUP

Intelligent Key interlock function mode can be changed to operation with this mode
• On: Operate
• Off: Non-operation

Monitor item

Description

Monitor Item

Condition

REQ SW -DR

Indicates [On/Off] condition of door request switch (driver side)

REQ SW -AS

Indicates [On/Off] condition of door request switch (passenger side)

REQ SW -BD/TR

Indicates [On/Off] condition of trunk lid opener request switch

PUSH SW

Indicates [On/Off] condition of push-button ignition switch

CLUTCH SW

NOTE:
This item is displayed, but cannot be monitored 

BRAKE SW 1

Indicates [On/Off]* condition of stop lamp switch power supply

BRAKE SW 2

Indicates [On/Off] condition of stop lamp switch

DETE/CANCL SW

Indicates [On/Off] condition of P position

SFT PN/N SW

Indicates [On/Off] condition of P or N position

S/L -LOCK

Indicates [On/Off] condition of steering lock unit (LOCK)
NOTE:
For models without steering lock unit, this item is not monitored. 

S/L -UNLOCK

Indicates [On/Off] condition of steering lock unit (UNLOCK)
NOTE:
For models without steering lock unit, this item is not monitored. 

S/L RELAY -F/B

Indicates [On/Off] condition of steering lock relay
NOTE:
For models without steering lock unit, this item is not monitored. 

UNLK SEN -DR

Indicates [On/Off] condition of driver door UNLOCK status

PUSH SW -IPDM

Indicates [On/Off] condition of push-button ignition switch

IGN RLY1 -F/B

Indicates [On/Off] condition of ignition relay 1

DETE SW -IPDM

Indicates [On/Off] condition of P position

SFT PN -IPDM

Indicates [On/Off] condition of P or N position

SFT P -MET

Indicates [On/Off] condition of P position

SFT N -MET

Indicates [On/Off] condition of N position

2012 M

PCS

DIAGNOSIS SYSTEM (BCM)

PCS-47

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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*: OFF is displayed when brake pedal is depressed while brake switch power supply is OFF.

ACTIVE TEST

ENGINE STATE

Indicates [Stop/Stall/Crank/Run] condition of engine states

S/L LOCK-IPDM

Indicates [On/Off] condition of steering lock unit (LOCK)
NOTE:
For models without steering lock unit, this item is not monitored. 

S/L UNLK-IPDM

Indicates [On/Off] condition of steering lock unit (UNLOCK)
NOTE:
For models without steering lock unit, this item is not monitored. 

S/L RELAY-REQ

Indicates [On/Off] condition of steering lock relay
NOTE:
For models without steering lock unit, this item is not monitored. 

VEH SPEED 1

Display the vehicle speed signal received from combination meter by numerical value [Km/h]

VEH SPEED 2

Display the vehicle speed signal received from ABS or VDC or TCM by numerical value [Km/h]

DOOR STAT-DR

Indicates [LOCK/READY/UNLK] condition of driver side door status

DOOR STAT-AS

Indicates [LOCK/READY/UNLK] condition of passenger side door status

ID OK FLAG

Indicates [Set/Reset] condition of key ID

PRMT ENG STRT

Indicates [Set/Reset] condition of engine start possibility

PRMT RKE STRT

NOTE:
This item is displayed, but cannot be monitored 

TRNK/HAT MNTR

Indicates [On/Off] condition of trunk room lamp switch

RKE-LOCK

Indicates [On/Off] condition of LOCK signal from Intelligent Key

RKE-UNLOCK

Indicates [On/Off] condition of UNLOCK signal from Intelligent Key

RKE-TR/BD

Indicates [On/Off] condition of trunk open signal from Intelligent Key

RKE-PANIC

Indicates [On/Off] condition of panic alarm button of Intelligent Key

RKE-MODE CHG

Indicates [On/Off] condition of MODE CHANGE signal from Intelligent Key

RKE OPE COUN1

When remote keyless entry receiver receives the signal transmitted while operating on Intelli-
gent Key, the numerical value start changing

RKE OPE COUN2

NOTE:
This item is displayed, but cannot be monitored 

Monitor Item

Condition

Test item

Description

BATTERY SAVER

This test is able to check interior room lamp operation
• On: Operate
• Off: Non-operation

OUTSIDE BUZZER

This test is able to check Intelligent Key warning buzzer operation
• On: Operate
• Off: Non-operation

INSIDE BUZZER

This test is able to check warning chime in combination meter operation
• Take Out: Take away warning chime sounds when CONSULT screen is touched
• Key: Key warning chime sounds when CONSULT screen is touched
• Knob: OFF position warning chime sounds when CONSULT screen is touched
• Off: Non-operation

INDICATOR

This test is able to check warning lamp operation
• KEY ON: “KEY” Warning lamp illuminates when CONSULT screen is touched
• KEY IND: “KEY” Warning lamp blinks when CONSULT screen is touched
• Off: Non-operation

INT LAMP

This test is able to check interior room lamp operation
• On: Operate
• Off: Non-operation

2012 M

PCS-48

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

DIAGNOSIS SYSTEM (BCM)

LCD

This test is able to check meter display information
• Engine start information displays when “BP N” on CONSULT screen is touched
• Engine start information displays when “BP I” on CONSULT screen is touched
• Key ID warning displays when “ID NG” on CONSULT screen is touched
• Steering lock information displays when “ROTAT” on CONSULT screen is touched

NOTE:
For models without steering lock unit, “ROTAT” is displayed, but cannot be tested.

• P position warning displays when “SFT P” on CONSULT screen is touched
• INSRT: This item is displayed, but cannot be monitored 
• BATT: This item is displayed, but cannot be monitored 
• Take away through window warning displays when “NO KY” on CONSULT screen is 

touched

• Take away warning display when “OUTKEY” on CONSULT screen is touched
• OFF position warning display when “LK WN” on CONSULT screen is touched

FLASHER

This test is able to check hazard warning lamp operation
The hazard warning lamps are activated after “LH/RH/Off” on CONSULT screen is touched

P RANGE

This test is able to check AT shift selector power supply
• On: Operate
• Off: Non-operation

ENGINE SW ILLUMI

This test is able to check push-ignition switch illumination operation
Push-ignition switch illumination illuminates when “ON” on CONSULT screen is touched

LOCK INDICATOR

This test is able to check LOCK indicator (push-button ignition switch) operation
• On: Operate
• Off: Non-operation

ACC INDICATOR

This test is able to check ACC indicator (push-button ignition switch) operation
• On: Operate
• Off: Non-operation

IGNITION ON IND

This test is able to check ON indicator (push-button ignition switch) operation
• On: Operate
• Off: Non-operation

HORN

This test is able to check horn operation
• On: Operate
• Off: Non-operation

TRUNK/BACK DOOR

This test is able to check trunk lid open operation
• Open: Operate

INTELLIGENT KEY LINK

This test is able to check Intelligent Key interlock function
• ID No1: BCM transmits Intelligent Key ID No1 to each control unit
• ID No2: BCM transmits Intelligent Key ID No2 to each control unit

INTELLIGENT KEY LINK (CAN)

This test is able to check Intelligent Key interlock function
• Off: Non-operation
• ID No1: BCM transmits Intelligent Key ID No1 to each control unit via CAN communication 

line

• ID No2: BCM transmits Intelligent Key ID No2 to each control unit via CAN communication 

line

• ID No3: BCM transmits Intelligent Key ID No3 to each control unit via CAN communication 

line

• ID No4: BCM transmits Intelligent Key ID No4 to each control unit via CAN communication 

line

• ID No5: This item is displayed, but cannot be used

Test item

Description

2012 M

PCS

BCM

PCS-49

< ECU DIAGNOSIS INFORMATION >

[POWER DISTRIBUTION SYSTEM]

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ECU DIAGNOSIS INFORMATION

BCM

List of ECU Reference

INFOID:0000000006887732

ECU

Reference

BCM

BCS-34, "Reference Value"

BCS-54, "Fail-safe"

BCS-56, "DTC Inspection Priority Chart"

BCS-57, "DTC Index"

2012 M

PCS-50

< WIRING DIAGRAM >

[POWER DISTRIBUTION SYSTEM]

POWER DISTRIBUTION SYSTEM

WIRING DIAGRAM

POWER DISTRIBUTION SYSTEM

Wiring Diagram

INFOID:0000000006887733

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JRMWC4740GB

2012 M