Nissan Qashqai (2007-2010). Manual - part 1852

PCS-12

< FUNCTION DIAGNOSIS >

[IPDM E/R]

DIAGNOSIS SYSTEM (IPDM E/R)

ACTIVE TEST

Test item

Monitor Item

[Unit]

MAIN 

SIGNALS

Description

MOTOR FAN REQ
[1 - 4]

×

Displays the value of the cooling fan speed signal received from ECM via CAN commu-
nication.

AC COMP REQ
[Off/On]

×

Displays the status of the A/C compressor request 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 com-
munication.

HL LO REQ
[Off/On]

×

Displays the status of the low beam request signal received from BCM via CAN commu-
nication.

HL HI REQ
[Off/On]

×

Displays the status of the high beam request signal received from BCM via CAN com-
munication.

FR FOG REQ
[Off/On]

×

Displays the status of the front fog light request signal received from BCM via CAN com-
munication.

HL WASHER REQ
[Off/On]

Displays the status of the headlamp washer 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 com-
munication.

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.

ST RLY REQ
[Off/On]

Displays the status of the ignition and starter request signal received from BCM via CAN 
communication.

IGN RLY
[Off/On]

×

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

RR DEF REQ
[Off/On]

×

Displays the status of the rear defogger request signal received from BCM via CAN com-
munication.

OIL P SW
[Open/Close]

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

REV SW
[Off/On]

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

HOOD SW
[Off/On]

Displays the status of the hood switch judged by IPDM E/R.
NOTE:
This item is monitored only the vehicle with the Vehicle Security (Theft Warning) system.

THFT HRN REQ
[Off/On]

Displays the status of the theft warning horn request signal received from BCM via CAN 
communication.
NOTE:
This item is monitored only the vehicle with the Vehicle Security (Theft Warning) system.

HORN CHIRP
[Off/On]

NOTE:
This item is indicated, but not monitored.

IGN ON SW
[Off/On]

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

Test item

Operation

Description

REAR DEFOGGER

Off

OFF

On

Operates the rear window defogger relay.

FRONT WIPER

Off

OFF

Lo

Operates the front wiper relay.

Hi

Operates the front wiper relay and front wiper high relay.

PCS

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-13

< FUNCTION DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

MOTOR FAN

1

OFF

2

Operates the cooling fan relay (low operation).

3

Operates the cooling fan relay (high operation).

4

HEAD LAMP WASHER

On

Operates the headlamp washer relay for 1 second.

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.

HORN

On

Operates horn relay for 20 ms.

Test item

Operation

Description

PCS-14

< COMPONENT DIAGNOSIS >

[IPDM E/R]

U1000 CAN COMM CIRCUIT

COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000000926993

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to 

LAN-59, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000000926994

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000926995

1.

PERFORM SELF DIAGNOSTIC

1.

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

2.

Check “Self Diagnostic Result”.

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-46, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

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 sec-
onds or more.

Any item (or items) of the following listed below is 
malfunctioning in CAN communication system.
• Transmission
• Receiving (ECM)
• Receiving (BCM)

PCS

B2098 IGNITION RELAY ON STUCK

PCS-15

< COMPONENT DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B2098 IGNITION RELAY ON STUCK

Description

INFOID:0000000000926996

The ignition relay integrated in IPDM E/R is operated with ignition switch ON signal from the ignition switch.

DTC Logic

INFOID:0000000000926997

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000926998

1.

PERFORM SELF DIAGNOSIS

1.

Turn the ignition switch ON.

2.

Select “Self Diagnostic Result” of “IPDM E/R”. Erase “SELF-DIAG RESULT”.

3.

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

4.

Turn the ignition switch ON. Check “SELF-DIAG RESULT” again.

Is “IGN RLY ON” displayed?

YES

>> Replace IPDM E/R.

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

DTC

CONSULT-III display 

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