Nissan Quest E52. Manual - part 1257

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< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

NOTE:

*: Refer to the following for details of the power supply position.

• OFF (OFF, LOCK): Ignition switch OFF

• ACC: Ignition switch ACC

• IGN: Ignition switch ON with engine stopped

• RUN: Ignition switch ON with engine running

• CRANK: At engine cranking

Power supply position shifts to “OFF (LOCK)” from “OFF (OFF)”, when ignition switch is in the OFF position, shift position is in the P
position, and any of the following conditions are met.

• Closing door

• Opening door

• Door is locked using door request switch

• Door is locked using Intelligent Key

The power supply position shifts to “ACC” when the push-button ignition switch (push switch) is pushed at “OFF (LOCK)”.

AIR PRESSURE MONITOR

AIR PRESSURE MONITOR : CONSULT Function (BCM - AIR PRESSURE MONI-

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 OFF (LOCK)]

SLEEP>OFF

While turning BCM status from low power consumption mode to 
normal mode [Power supply position is OFF (OFF)]

LOCK>ACC

While turning power supply position from OFF (LOCK) to ACC

ACC>ON

While turning power supply position from ACC to ON

RUN>ACC

While turning power supply position from RUN to ACC (Except 
emergency stop operation)

CRANK>RUN

While turning power supply position from CRANK to RUN

RUN>URGENT

While turning power supply position from RUN to ACC (Emergen-
cy stop operation)

ACC>OFF

While turning power supply position from ACC to OFF (OFF)

OFF>LOCK

While turning power supply position from OFF (OFF) to OFF 
(LOCK)

OFF>ACC

While turning power supply position from OFF (OFF) to ACC

ON>CRANK

While turning power supply position from ON to CRANK

OFF>SLEEP

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

LOCK>SLEEP

While turning BCM status from normal mode [Power supply posi-
tion is OFF (LOCK)] to low power consumption mode

LOCK

Power supply position is OFF (LOCK)

OFF

Power supply position is OFF (OFF)

ACC

Power supply position is ACC

ON

Power supply position is ON

ENGINE RUN

Power supply position is RUN

CRANKING

Power supply position is CRANK

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.

DIAGNOSIS SYSTEM (BCM)

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< SYSTEM DESCRIPTION >

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INFOID:0000000009653423

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SELF DIAGNOSTIC RESULT

Refer to 

BCS-63, "DTC Index"

.

DATA MONITOR MODE

NOTE:
The following table includes information(items)inapplicable to this vehicle. For information(items)applicable to
this vehicle, refer to CONSULT display items.

ACTIVE TEST MODE

NOTE:
After completing the work below, perform an active test.
1.

Check ID registration state and perform self-diagnosis.

2.

Erase the self-diagnosis result history.

Diagnosis mode

Function Description

Self Diagnostic Result

Retrieve DTC from ECU and display diagnostic items.

Data Monitor

Monitor the input/output signal of the control unit in real time.

Active Test

Send the drive signal from CONSULT to the actuator. The operation check can be performed.

Work Support

This mode enables a technician to adjust some devices faster and more accurately.

Monitor item (Unit)

Remarks

AIR PRESS FL
(kPa kg/cm2 or Psi)

Tire pressure

AIR PRESS FR
(kPa, kg/cm2 or Psi)

AIR PRESS RR
(kPa, kg/cm2 or Psi)

AIR PRESS RL
(kPa, kg/cm2 or Psi)

ID REGST FL1
(Yet, Done)

Registration ID

ID REGST FR1
(Yet, Done)

ID REGST RR1
(Yet, Done)

ID REGST RL1
(Yet, Done)

WARNING LAMP
 (On/Off)

Low tire pressure warning lamp

BUZZER
 (On/Off)

NOTE:
This item is displayed, but cannot be use this item.

Item

Description

WARNING LAMP

Low tire pressure warning lamp can be turned ON arbitrarily.

ID REGIST WARNING

NOTE:
Displayed but not used in TPMS.

RUN FLAT TIRE W/L

NOTE:
Displayed but not used in TPMS.

RUN FLAT/T WARN BUZZER

NOTE:
Displayed but not used in TPMS.

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< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

WORK SUPPORT

FLASHER

Turn signal lamps can be turned ON arbitrarily.

HORN

This test is able to check to check that the horn sounds.

Item

Description

Item

Description

ID READ

Registered tire pressure sensor ID can be displayed.

ID REGIST

Tire pressure sensor ID can be registered.

BCM

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< ECU DIAGNOSIS INFORMATION >

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ECU DIAGNOSIS INFORMATION

BCM

List of ECU Reference

INFOID:0000000009653424

ECU

Reference

BCM

BCS-40, "Reference Value"

BCS-62, "Fail-safe"

BCS-62, "DTC Inspection Priority Chart"

BCS-63, "DTC Index"