Infiniti QX56 (JA60). Manual - part 724

PCS-18

< COMPONENT DIAGNOSIS >

[IPDM E/R]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000005146511

Regarding Wiring Diagram information, refer to 

PCS-27, "Wiring Diagram"

.

1.

 CHECK FUSES AND FUSIBLE LINK

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

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK BATTERY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R.

3. Check voltage between IPDM E/R harness connectors and

ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between IPDM E/R harness connectors and

ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

Terminal No.

Signal name

Fuses and fusible link No.

1

Battery

A, D

2

Battery

C

12

Ignition switch ON or START

59

Terminals

Ignition switch position

(+)

(

−)

OFF

ON

START

Connector

Terminal

E118 (A)

1

Ground

Battery
voltage

Battery
voltage

Battery
voltage

2

Battery
voltage

Battery
voltage

Battery
voltage

E119 (B)

12

0V

Battery
voltage

Battery
voltage

AWMIA0023ZZ

IPDM E/R

Ground

Continuity

Connector

Terminal

E122 (A)

38

Yes

E124 (B)

59

AWMIA0024ZZ

PCS

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

PCS-19

< ECU DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

ECU DIAGNOSIS

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

Reference Value

INFOID:0000000005146512

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

MOTOR FAN REQ

Engine idle speed

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

0 - 100 %

A/C COMP REQ

A/C switch OFF

OFF

A/C switch ON

ON

TAIL&CLR REQ

Lighting switch OFF

OFF

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

ON

HL LO REQ

Lighting switch OFF

OFF

Lighting switch 2ND HI or AUTO (Light is illuminated)

ON

HL HI REQ

Lighting switch OFF

OFF

Lighting switch HI

ON

FR FOG REQ

Lighting switch 2ND or AUTO (Light 
is illuminated)

Front fog lamp switch OFF

OFF

• Front fog lamp switch ON
• Daytime light activated (Canada 

only)

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

ST RLY REQ

Ignition switch OFF or ACC

OFF

Ignition switch START

ON

IGN RLY

Ignition switch OFF or ACC

OFF

Ignition switch ON

ON

RR DEF REQ

Rear defogger switch OFF

OFF

Rear defogger switch ON

ON

OIL P SW

Ignition switch OFF, ACC or engine running

OPEN

Ignition switch ON

CLOSE

DTRL REQ

Daytime light system requested OFF with CONSULT-III.

OFF

Daytime light system requested ON with CONSULT-III.

ON

HOOD SW

Hood closed.

OFF

Hood open.

ON

PCS-20

< ECU DIAGNOSIS >

[IPDM E/R]

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

THFT HRN REQ

Not operated

OFF

• Panic alarm is activated
• Horn is activated with VEHICLE SECURITY (THEFT WARNING) SYS-

TEM

ON

HORN CHIRP

Not operated

OFF

Door locking with Intelligent Key (horn chirp mode)

ON

Monitor Item

Condition

Value/Status

PCS

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

PCS-21

< ECU DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Terminal Layout

INFOID:0000000005146513

TERMINAL LAYOUT —TYPE A

WKIA5852E