Nissan Quest E52. Manual - part 929

PCS

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-13

< SYSTEM DESCRIPTION >

[IPDM E/R]

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CONSULT Function (IPDM E/R)

INFOID:0000000009652853

APPLICATION ITEM

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

SELF DIAGNOSTIC RESULT

Refer to 

PCS-24, "DTC Index"

.

DATA MONITOR

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

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 between cooling 

fan and cooling fan relay

• Harness or connector between IPDM E/

R and cooling fan relay

• Cooling fan relay
• 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

MOTOR FAN REQ
[1/2/3/4]

×

Displays the value of the cooling fan speed signal received from ECM via CAN com-
munication.

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 
communication.

HL LO REQ
[Off/On]

×

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

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 light 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 stop position 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 com-
munication.

IGN RLY
[Off/On]

×

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

PCS-14

< SYSTEM DESCRIPTION >

[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.

INTER/NP SW
[Off/On]

Displays the status of the shift position judged by IPDM E/R.

ST RLY CONT
[Off/On]

Displays the status of the starter relay status signal received from BCM via CAN 
communication.

IHBT RLY -REQ
[Off/On]

Displays the status of the starter control relay signal received from BCM via CAN 
communication.

ST/INHI RLY
[Off/ ST /INHI/UNKWN]

Displays the status of the starter relay and starter control relay judged by IPDM E/R.

DETENT SW
[Off/On]

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

S/L RLY -REQ
[Off/On]

NOTE:
The item is indicated, but not monitored.

S/L STATE
[LOCK/UNLK/UNKWN]

NOTE:
The item is indicated, but not monitored.

DTRL REQ
[Off/On]

Displays the status of the daytime running light request signal received from BCM via 
CAN communication.
NOTE:
This item is monitored only on the vehicle with daytime running light system.

OIL P SW
[Open/Close]

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

HOOD SW
[Off/On]

NOTE:
The item is indicated, but not monitored.

HL WASHER REQ
[Off/On]

NOTE:
The item is indicated, but not monitored.

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 commu-
nication.

CRNRNG LMP REQ
[Off/On]

NOTE:
The item is indicated, but not monitored.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

Test item

Operation

Description

CORNERING LAMP

Off

NOTE:
The item is indicated, but cannot be tested.

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

Operates the cooling fan relay-1.

3

Operates the cooling fan relay-2.

4

Operates the cooling fan relay-2 and cooling fan relay-3.

HEAD LAMP WASHER

On

NOTE:
The item is indicated, but cannot be tested.

PCS

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-15

< SYSTEM DESCRIPTION >

[IPDM E/R]

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EXTERNAL LAMPS

Off

OFF

TAIL

Operates the tail lamp relay and the daytime running light 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.

Test item

Operation

Description

PCS-16

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

IPDM E/R

ECU DIAGNOSIS INFORMATION

IPDM E/R

Reference Value

INFOID:0000000009652854

VALUES ON THE DIAGNOSIS TOOL

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

Monitor Item

Condition

Value/Status

MOTOR FAN REQ

Engine idle speed

Changes depending on engine coolant 
temperature, air conditioner operation 
status, vehicle speed, etc.

1/2/3/4

AC COMP REQ

Engine running

A/C switch OFF

Off

A/C switch ON
(compressor is operating)

On

TAIL&CLR REQ

Lighting switch OFF

Off

Lighting switch 1ST, 2ND or AUTO (light is illuminated)

On

HL LO REQ

Lighting switch OFF

Off

Lighting switch 2ND or AUTO (light is illuminated)

On

HL HI REQ

Lighting switch 2ND or
AUTO (light is illuminated)

Lighting switch other than HI and PASS

Off

Lighting switch HI or PASS

On

FR FOG REQ

Lighting switch 2ND or
AUTO (light is illuminated)

Front fog lamp switch OFF

Off

Lighting switch HI or PASS

Front fog lamp switch ON

On

FR WIP REQ

Ignition switch ON

Front wiper switch OFF

Stop

Front wiper switch INT

1LOW

Front wiper switch LO

Low

Front wiper switch HI

Hi

WIP AUTO STOP

Ignition switch ON

Front wiper stop position

STOP P

Any position other than front wiper stop 
position

ACT P

WIP PROT

Ignition switch ON

Front wiper operates normally

Off

Front wiper stops at fail-safe operation

BLOCK

IGN RLY1 -REQ

Ignition switch OFF or ACC

Off

Ignition switch ON

On

IGN RLY

Ignition switch OFF or ACC

Off

Ignition switch ON

On

PUSH SW

Release the push-button ignition switch

Off

Press the push-button ignition switch

On

INTER/NP SW

Ignition switch ON

Selector lever in any position other 
than P or N

Off

Selector lever in P or N position

On

ST RLY CONT

Ignition switch ON

Off

At engine cranking

On

IHBT RLY -REQ

Ignition switch ON

Off

At engine cranking

On