Infiniti EX35. Manual - part 798

EXL-236

< FUNCTION DIAGNOSIS >

[HALOGEN TYPE]

DIAGNOSIS SYSTEM (IPDM E/R)

CONSULT-III Function (IPDM E/R)

INFOID:0000000003757053

APPLICATION ITEM

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

SELF DIAGNOSTIC RESULT

Refer to 

EXL-338, "DTC Index"

.

DATA MONITOR

A/C compressor does not operate

Perform auto active test.
Does the magnet clutch oper-
ate?

YES

• Unified meter and A/C amp. 

signal input circuit

• CAN communication signal 

between unified meter and 
A/C amp. and ECM

• CAN communication signal 

between ECM and IPDM E/
R

NO

• Magnet clutch
• Harness or connector be-

tween IPDM E/R and mag-
net clutch

• IPDM  E/R

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 unified 
meter and A/C amp.

• Combination meter

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 control module

• Cooling fan control module
• Harness or connector be-

tween IPDM E/R and cool-
ing fan control module

• Cooling fan relay
• Harness or connector be-

tween IPDM E/R and cool-
ing 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.

DIAGNOSIS SYSTEM (IPDM E/R)

EXL-237

< FUNCTION DIAGNOSIS >

[HALOGEN TYPE]

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Monitor item

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

RAD FAN REQ
[%]

×

Displays the value of the cooling fan speed 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.

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 control device (detention switch) judged by IPDM E/R.

S/L RLY -REQ
[Off/On]

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

S/L STATE
[LOCK/UNLOCK/UNKWN]

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

DTRL REQ
[Off]

NOTE:
The item is indicated, but not monitored.

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]

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.

EXL-238

< FUNCTION DIAGNOSIS >

[HALOGEN TYPE]

DIAGNOSIS SYSTEM (IPDM E/R)

ACTIVE TEST

Test item

HORN CHIRP
[Off/On]

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

CRNRNG LMP REQ
[Off]

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 1 and horn relay 2 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.

HEAD LAMP WASHER

On

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

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.

POWER SUPPLY AND GROUND CIRCUIT

EXL-239

< COMPONENT DIAGNOSIS >

[HALOGEN TYPE]

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COMPONENT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM (BODY CONTROL MODULE)

BCM (BODY CONTROL MODULE) : Diagnosis Procedure

INFOID:0000000003757056

1.

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure

INFOID:0000000003757059

1.

CHECK FUSES AND FUSIBLE LINK

Check that the following IPDM E/R fuses or fusible links are not blown.

Signal name

Fuse and fusible link No.

Battery power supply

K

10

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

1

Battery voltage

M119

11

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed