Infiniti G37 Coupe. Manual - part 924

 

  Index      Infiniti     Infiniti G37 Coupe - service repair manual 2008 year

 

Search            

 

 

 

 

 

 

 

  

 

Content   ..  922  923  924  925   ..

 

 

Infiniti G37 Coupe. Manual - part 924

 

 

MWI-42

< COMPONENT DIAGNOSIS >

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000001606651

Initial diagnosis of unified meter and A/C amp.

DTC Logic

INFOID:0000000001606652

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001606653

1.

REPLACE UNIFIED METER AND A/C AMP.

When DTC “U1010” is detected, replace unified meter and A/C amp.

>> INSPECTION END

DTC

Display contents of CON-

SULT-III

Diagnostic item is detected when ...

Probable malfunction location

U1010

CONTROL UNIT (CAN)

If any malfunction is detected during initial di-
agnosis of unified meter and A/C amp. CAN 
controller

Unified meter and A/C amp.

MWI

B2201 COMMUNICATION ERROR 1

MWI-43

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2201 COMMUNICATION ERROR 1

Description

INFOID:0000000001606654

The communication line (LCD <-> AMP.) is used to communicate signals between the combination meter and
the unified meter and A/C amp. in order to control the information display.

DTC Logic

INFOID:0000000001606655

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001606656

1.

CHECK CONNECTOR

Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter
and A/C amp. side, and harness side) for looseness or bent.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair terminal or connector.

2.

CHECK CONTINUITY COMMUNICATION CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and unified meter and A/C amp. connector.

3.

Check continuity between combination meter harness connector terminal and unified meter and A/C amp.
harness connector terminal.

4.

Check continuity between combination meter harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK UNIFIED METER AND A/C AMP. OUTPUT VOLTAGE

1.

Connect unified meter and A/C amp. connector.

2.

Turn ignition switch ON.

3.

Check voltage between unified meter and A/C amp. harness connector terminal and ground.

DTC

Display contents of 

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

B2201

COMM ERROR 1

If a communication error is present in the 
communication line (LCD <-> AMP.) for 2 sec-
onds or more

Communication line (LCD <-> AMP.) circuit

Combination meter

Unified meter and A/C amp.

Continuity

Connector

Terminals

Connector

Terminals

M53

24

M66

14

Existed

25

34

Combination meter

Ground

Continuity

Connector

Terminals

M53

24

Not existed

25

MWI-44

< COMPONENT DIAGNOSIS >

B2201 COMMUNICATION ERROR 1

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace unified meter and A/C amp.

4.

CHECK COMBINATION METER OUTPUT VOLTAGE

1.

Turn ignition switch OFF.

2.

Disconnect unified meter and A/C amp. connector.

3.

Connect combination meter connector.

4.

Turn ignition switch ON.

5.

Check voltage between combination meter harness connector terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace combination meter.

Terminal

Voltage

(Approx.)

(+)

(–)

Unified meter and A/C amp.

Connector

Terminal

M66

14

Ground

12 V

Terminal

Voltage

(Approx.)

(+)

(–)

Combination meter

Connector

Terminal

M53

25

Ground

5 V

MWI

B2202 COMMUNICATION ERROR 2

MWI-45

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2202 COMMUNICATION ERROR 2

Description

INFOID:0000000001606657

The communication line (METER <-> AMP.) is used to communicate signals between the combination meter
and the unified meter and A/C amp. in order to control the information display.

DTC Logic

INFOID:0000000001606658

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001606659

1.

CHECK CONNECTOR

Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter
and A/C amp. side, and harness side) for looseness or bent.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair terminal or connector.

2.

CHECK CONTINUITY COMMUNICATION CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and unified meter and A/C amp. connector.

3.

Check continuity between combination meter harness connector terminal and unified meter and A/C amp.
harness connector terminal.

4.

Check continuity between combination meter harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK UNIFIED METER AND A/C AMP. OUTPUT VOLTAGE

1.

Connect unified meter and A/C amp. connector.

2.

Turn ignition switch ON.

3.

Check voltage between unified meter and A/C amp. harness connector terminal and ground.

DTC

Display contents of 

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

B2202

COMM ERROR 2

If a communication error is present in the 
communication line (METER <-> AMP.) for 2 
seconds or more

Communication line (METER <-> AMP.) circuit

Combination meter

Unified meter and A/C amp.

Continuity

Connector

Terminals

Connector

Terminals

M53

2

M66

27

Existed

3

7

Combination meter

Ground

Continuity

Connector

Terminals

M53

2

Not existed

3

 

 

 

 

 

 

 

Content   ..  922  923  924  925   ..