Infiniti QX56 (JA60). Manual - part 723

 

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Infiniti QX56 (JA60). Manual - part 723

 

 

PCS-14

< FUNCTION DIAGNOSIS >

[IPDM E/R]

DIAGNOSIS SYSTEM (IPDM E/R)

CONSULT - III Function (IPDM E/R)

INFOID:0000000005146507

APPLICATION ITEM

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

SELF DIAGNOSTIC

Refer to 

PCS-32, "DTC Index"

.

DATA MONITOR

Monitor item

Any of the following components do not operate

• Front wipers
• Tail  lamps
• License plate lamps
• Parking lamps
• Front  fog  lamps
• Headlamps (Hi, Lo)

Perform auto active test.
Does the applicable system 
operate?

YES

BCM signal input system

NO

• Lamp or front wiper motor 

malfunction

• Lamp or front wiper motor 

ground circuit

• Harness or connector be-

tween IPDM E/R and appli-
cable system

• IPDM E/R (integrated relay 

malfunction)

A/C compressor does not operate

Perform auto active test.
Does the A/C compressor op-
erate?

YES

• BCM signal input circuit
• CAN communication signal 

between BCM and ECM

• CAN communication signal 

between ECM and IPDM E/
R

NO

• Magnetic clutch malfunction
• Harness or connector be-

tween IPDM E/R and mag-
netic clutch

• IPDM E/R (integrated relay 

malfunction)

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 motor malfunc-

tion

• Harness or connector be-

tween IPDM E/R and cool-
ing fan

• IPDM E/R (integrated relay 

malfunction)

Symptom

Inspection contents

Possible cause

Diagnosis mode

Description

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

A/C COMP REQ
[OFF/ON]

×

Displays the status of the A/C request signal received from AV control unit via 
CAN communication.

PCS

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-15

< FUNCTION DIAGNOSIS >

[IPDM E/R]

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ACTIVE TEST

Test item

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.

ST RLY REQ
[OFF/ON]

Displays the status of the starter request signal received from ECM via CAN com-
munication.

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 AV control 
unit via CAN communication.

OIL P SW
[OPEN/CLOSE]

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

DTRL REQ
[OFF]

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

HOOD SW
[OPEN/CLOSE]

Displays the status of the hood 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.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

Test item

Operation

Description

REAR DEFOGGER

OFF

OFF

ON

Operates 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

OFF

3

Operates the cooling fan relay.

4

Operates the cooling fan relay.

PCS-16

< FUNCTION DIAGNOSIS >

[IPDM E/R]

DIAGNOSIS SYSTEM (IPDM E/R)

EXTERNAL LAMPS

OFF

OFF

TAIL

Operates the tail lamp relay.

LO

Operates the headlamp low relay.

HI

Operates the headlamp low relay and the headlamp high LH/RH relays 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

U1000 CAN COMM CIRCUIT

PCS-17

< COMPONENT DIAGNOSIS >

[IPDM E/R]

C

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COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000005146508

Refer to 

LAN-4, "System Description"

.

DTC Logic

INFOID:0000000005146509

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

Diagnosis Procedure

INFOID:0000000005146510

1.

 PERFORM SELF DIAGNOSTIC

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

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

YES

>> Refer to 

LAN-5, "CAN Communication Control Circuit"

.

NO

>> Refer to 

GI-38, "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 
seconds or more

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

 

 

 

 

 

 

 

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