Infiniti QX56 (JA60). Manual — part 663

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TROUBLE DIAGNOSIS

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< FUNCTION DIAGNOSIS >

[CAN]

C

D

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N

Never replace the unit even when “NG” is indicated on the “INITIAL DIAG” at this stage. Follow the trouble diagnosis proce-
dures.

IPDM E/R

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

DTC Index

INFOID:0000000005152903

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

IPDM-E

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

ECM

Signal receiving status from the ECM

BCM/SEC

Signal receiving status from the BCM

DTC

Self-diagnosis item

(CONSULT-III indication)

DTC detection condition

Inspection/Action

U0101

LOST COMM (TCM)

When ECM is not transmitting or receiving CAN commu-
nication signal of OBD (emission-related diagnosis) from
TCM for 2 seconds or more.

Start the inspection. Refer
to the applicable section
of the indicated control
unit.

U0140

LOST COMM (BCM)

When ECM is not transmitting or receiving CAN commu-
nication signal of OBD (emission-related diagnosis) from
BCM for 2 seconds or more.

U0164

LOST COMM (HVAC)

When ECM is not transmitting or receiving CAN commu-
nication signal of OBD (emission-related diagnosis) from
A/C auto amp. or unified meter and A/C amp. for 2 sec-
onds or more.

U1000

CAN COMM CIRCUIT

ECM

When ECM is not transmitting or receiving
CAN communication signal of OBD (emission-
related diagnosis) for 2 seconds or more.

Except
for ECM

When a control unit (except for ECM) is not
transmitting or receiving CAN communication
signal for 2 seconds or more.

U1001

CAN COMM CIRCUIT

When ECM is not transmitting or receiving CAN commu-
nication signal other than OBD (emission-related diagno-
sis) for 2 seconds or more.

U1002

SYSTEM COMM

When a control unit is not transmitting or receiving CAN
communication signal for 2 seconds or less.

U1010

CONTROL UNIT(CAN)

When an error is detected during the initial diagnosis for
CAN controller of each control unit.

Replace the control unit
indicating “U1010” or
“P0607”.

P0607

ECM

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< COMPONENT DIAGNOSIS >

[CAN]

CAN COMMUNICATION SYSTEM

COMPONENT DIAGNOSIS

CAN COMMUNICATION SYSTEM

Component Parts Location

INFOID:0000000005146466

1.

ECM E16

2.

IPDM E/R E122

3.

ICC sensor E42

4.

AV control unit M45

5.

Combination meter M24

6.

ABS actuator and electric unit (con-
trol unit) E125

7.

Intelligent Key unit M70

8.

BCM M18

9.

Data link connector M22

10. Steering angle sensor M17

11. Driver seat control unit B202

12. ICC unit B13

13. Air bag diagnosis sensor unit M35

14. A/T assembly F9

15. A/C auto amp. M50

16. Transfer control unit E142

AWMIA0011ZZ

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CAN COMMUNICATION SYSTEM

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< COMPONENT DIAGNOSIS >

[CAN]

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N

Wiring Diagram - CAN SYSTEM -

INFOID:0000000005146467

ABMWA0423GB

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< COMPONENT DIAGNOSIS >

[CAN]

CAN COMMUNICATION SYSTEM

AAMWA0130GB