Infiniti QX56 (Z62). Manual - part 964

PCS-12

< SYSTEM DESCRIPTION >

[IPDM E/R]

DIAGNOSIS SYSTEM (IPDM E/R)

CONSULT-III Function (IPDM E/R)

INFOID:0000000006220171

APPLICATION ITEM

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

SELF DIAGNOSTIC RESULT

Refer to 

PCS-22, "DTC Index"

.

DATA MONITOR

Monitor item

Oil pressure warning lamp does not operate

Perform auto active test.
Does the oil pressure warning 
lamp blink?

YES

• Harness or connector be-

tween IPDM E/R and oil 
pressure switch

• Oil pressure switch
• IPDM  E/R

NO

• CAN communication signal 

between IPDM E/R and 
BCM

• CAN communication signal 

between BCM and combi-
nation meter

• Combination meter

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

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

×

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

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 
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 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 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

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-13

< SYSTEM DESCRIPTION >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

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 ON/INHI ON/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 A/T shift selector (detention switch) judged by IPDM E/
R.

S/L RLY -REQ
[Off/On]

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

S/L STATE
[LOCK/UNLK/UNKWN]

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

OIL P SW
[Open/Close]

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

HOOD SW
[Off/On]

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

HL WASHER REQ
[Off/On]

Displays the status of the headlamp washer request signal received from BCM via 
CAN communication.

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.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

Test item

Operation

Description

CORNERING LAMP

LH

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

RH

HORN

On

Operates horn relay for 20 ms.

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.

MOTOR FAN*

1

OFF

2

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

3

Transmits 75% pulse duty signal (PWM signal) to the cooling fan control module.

4

Transmits 100% pulse duty signal (PWM signal) to the cooling fan control mod-
ule.

HEAD LAMP WASHER

On

Operates the headlamp washer relay for 1 second.

PCS-14

< SYSTEM DESCRIPTION >

[IPDM E/R]

DIAGNOSIS SYSTEM (IPDM E/R)

*: Operates while the engine is running.

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.

Test item

Operation

Description

PCS

IPDM E/R

PCS-15

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

ECU DIAGNOSIS INFORMATION

IPDM E/R

Reference Value

INFOID:0000000006220172

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

RAD FAN REQ

Engine idle speed

Changes depending on engine 
coolant temperature, air condition-
er operation status, vehicle speed, 
etc.

0 – 100 %

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

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 opera-
tion.

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