Nissan Altima HL32 Hybrid. Manual - part 844

PCS

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-17

< FUNCTION DIAGNOSIS >

[IPDM E/R]

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CONSULT - III Function (IPDM E/R)

INFOID:0000000004219109

APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with IPDM E/R.

SELF DIAGNOSTIC

Refer to 

PCS-36, "DTC Index"

.

DATA MONITOR

Monitor item

Cooling fan does not operate

Perform auto active test.
Does the cooling fan operate?

YES

• ECM signal input circuit
• CAN communication signal 

between ECM and IPDM E/
R

NO

• Cooling fan
• Harness or connector be-

tween cooling fan and cool-
ing fan relays

• Cooling fan relays
• Harness or connector be-

tween IPDM E/R and cool-
ing fan relays

• IPDM E/R

Symptom

Inspection contents

Possible cause

Diagnosis mode

Description

ECU Identification

Allows confirmation of IPDM E/R part number.

Self Diagnostic Result

Displays the diagnosis results judged by IPDM E/R.

Data Monitor

Displays the real-time input/output data from IPDM E/R input/output data.

Active Test

IPDM E/R can provide a drive signal to electronic components to check their operations.

CAN Diag Support Monitor

The results of transmit/receive diagnosis of CAN communication can be read.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

RADFAN REQ
[%]

×

Displays the value of the cooling fan speed signal received from ECM via CAN 
communication.

TAIL&CLR REQ
[OFF/ON]

×

Displays the status of the position light request signal received from BCM via CAN 
communication.

HL LO REQ
[OFF/ON]

×

Displays the status of the low beam request signal received from BCM via CAN 
communication.

HL HI REQ
[OFF/ON]

×

Displays the status of the high beam request signal received from BCM via CAN 
communication.

FR FOG REQ
[OFF/ON]

×

Displays the status of the front fog lamp request signal received from BCM via 
CAN communication.

FR WIP REQ
[STOP/1LOW/LOW/HI]

×

Displays the status of the front wiper request signal received from BCM via CAN 
communication.

WIP AUTO STOP
[STOP P/ACT P]

×

Displays the status of the front wiper auto stop signal judged by IPDM E/R.

WIP PROT
[OFF/BLOCK]

×

Displays the status of the front wiper fail-safe operation judged by IPDM E/R.

IGN RLY1 -REQ
[OFF/ON]

Displays the status of the ignition switch ON signal received from BCM via CAN 
communication.

IGN RLY
[OFF/ON]

×

Displays the status of the ignition relay judged by IPDM E/R.

PCS-18

< FUNCTION DIAGNOSIS >

[IPDM E/R]

DIAGNOSIS SYSTEM (IPDM E/R)

ACTIVE TEST

Test item

PUSH SW
[OFF/ON]

Displays the status of the push-button ignition switch judged by IPDM E/R.

DETENT SW
[OFF/ON]

Displays the status of the CVT device (detention switch) judged by IPDM E/R.

S/L RLY -REQ
[OFF/ON]

Displays the status of the electronic steering column lock relay request received 
from BCM via CAN communication.

S/L STATE
[LOCK/UNLK/UNKWN]

Displays the status of the electronic steering column lock judged by IPDM E/R.

DTRL REQ
[OFF]

NOTE:
This item is displayed, but cannot be monitored.

OIL P SW
[OPEN/CLOSE]

Displays the status of the oil pressure switch judged by IPDM E/R.

THFT HRN REQ
[OFF/ON]

Displays the status of the theft warning horn request signal received from BCM 
via CAN communication.

HORN CHIRP
[OFF/ON]

Displays the status of the horn reminder signal received from BCM via CAN com-
munication.

CRNRNG LMP REQ
[OFF]

NOTE:
This item is displayed, but cannot be monitored.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

Test item

Operation

Description

CORNERING LAMP

OFF

NOTE:
This item is displayed, but cannot be monitored.

LH

RH

HORN

ON

Operates horn relay for 20 ms.

FRONT WIPER

OFF

OFF

LO

Operates the front wiper relay.

HI

Operates the front wiper relay and front wiper high relay.

MOTOR FAN

1

OFF

2

Outputs 50% pulse duty signal (PWM signal) to the cooling fan control module.

3

Outputs 80% pulse duty signal (PWM signal) to the cooling fan control module.

4

Outputs 100% pulse duty signal (PWM signal) to the cooling fan control module.

EXTERNAL LAMPS

OFF

OFF

TAIL

Operates the tail lamp relay.

LO

Operates the headlamp low relay.

HI

Operates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.

FOG

Operates the front fog lamp relay

PCS

U1000 CAN COMM CIRCUIT

PCS-19

< COMPONENT DIAGNOSIS >

[IPDM E/R]

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COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000004219110

Refer to 

LAN-7, "System Description"

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DTC Logic

INFOID:0000000004219111

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

Diagnosis Procedure

INFOID:0000000004219112

1.

 PERFORM SELF DIAGNOSTIC

1. Turn ignition switch ON and wait for 2 second or more.

2. Check “SELF-DIAG RESULTS” of IPDM E/R.
Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

PCS-19, "DTC Logic"

.

NO

>> Refer to 

GI-42, "Intermittent Incident"

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DTC

CONSULT-III display 

description

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When IPDM E/R cannot communicate CAN 
communication signal continuously for 2 
seconds or more

In CAN communication system, any item (or items) 
of the following listed below is malfunctioning.
• Transmission
• Receiving (ECM)
• Receiving (BCM)
• Receiving (Combination meter)

PCS-20

< COMPONENT DIAGNOSIS >

[IPDM E/R]

B2098 IGNITION RELAY ON STUCK

B2098 IGNITION RELAY ON STUCK

Description

INFOID:0000000004219113

• IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN com-

munication.

• Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/

h (2.5 MPH) or less.

• Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5

MPH) or when an abnormal condition occurs in CAN communication from the combination meter (Emer-

gency OFF)

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

- Press the push-button ignition switch 3 time within 1.5 seconds.

NOTE:

The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch

is pressed.

DTC Logic

INFOID:0000000004219114

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000004219115

1.

 PERFORM SELF DIAGNOSIS

1. Turn the ignition switch ON.

2. Erase “SELF-DIAG RESULTS” of IPDM E/R.

3. Turn ignition switch OFF, and wait for 1 second or more. 

4. Turn the ignition switch ON. Check “SELF-DIAG RESULTS” again.
Is “IGN RELAY ON” displayed?

YES

>> Replace IPDM E/R. Refer to 

PCS-39, "Removal and Installation"

.

NO

>> Refer to 

GI-42, "Intermittent Incident"

.

DTC

CONSULT-III dis-

play description

DTC Detection Condition

Possible causes

B2098

IGN RELAY ON

The ignition relay ON is detected for 1 second at ignition switch OFF
(CPU monitors the status at the contact and excitation coil circuits of 
the ignition relay inside it)

Ignition relay malfunction