Infiniti F50. Manual - part 277

 

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Infiniti F50. Manual - part 277

 

 

TROUBLE DIAGNOSIS

BRC-51

C

D

E

G

H

I

J

K

L

M

A

B

BRC

5. 

CHECKING MOTOR RELAY UNIT

Check motor relay as a unit. Refer to 

BRC-59, "VDC RELAY BOX"

 .

OK or NG

OK

>> Check VDC/TCS/ABS control unit power circuit.

NG

>> Replace motor relay.

Inspection 9 Actuator Relay and Circuit

EFS001ZK

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS (1)

Check self-diagnosis results.

Does “ACTUATOR RELAY CIRCUIT” appear on self-diagnosis results display?

YES

>> GO TO 2.

NO

>> Inspection is completed.

2. 

CHECKING SELF-DIAGNOSIS RESULTS (2)

1.

Disconnect VDC/TCS/ABS control unit connector E218 and VDC relay box connector E55, E56, E57.
Then reconnect it securely.

2.

Perform VDC/TCS/ABS control unit self-diagnosis again.

Do any self-diagnosis items appear?

YES

>> GO TO 3.

NO

>> Poor connection. Repair or replace applicable connector.

3. 

CHECKING VDC/TCS/ABS CONTROL UNIT GROUND CIRCUIT

Check continuity between VDC/TCS/ABS control unit harness con-
nector E218 and body ground.

OK or NG

OK

>> GO TO 4.

NG

>> Poor connection of VDC/TCS/ABS control unit, or harness malfunction.

Self-diagnosis results

CONSULT-II display items

Actuator relay circuit

SFIA0809E

VDC/TCS/ABS control unit

(Harness connector E218)

Body ground

Continuity

27 (B)

Yes

28 (B)

Yes

29 (B)

Yes

33 (B)

Yes

BRC-52

TROUBLE DIAGNOSIS

4. 

CHECKING ACTUATOR RELAY POWER SYSTEM

1.

Disconnect VDC relay box connector E57.

2.

Check voltage between VDC relay box harness connector E57
and body ground.

OK or NG

OK

>> GO TO 5.

NG

>>

Check fuse 30A.

Check continuity between battery and relay unit terminal No. 9. If it is not OK, replace fuse or
harness.

5. 

CHECKING ACTUATOR RELAY POWER CIRCUIT

1.

Disconnect VDC/TCS/ABS control unit connector E218 and VDC relay box connector E56.

2.

Check continuity between VDC/TCS/ABS control unit harness
connector E218 and VDC relay box harness connector E56.

OK or NG

OK

>> GO TO 6.

NG

>> Open or short in harness between VDC/TCS/ABS control unit and VDC relay box.

6. 

CHECKING ACTUATOR RELAY UNIT

Check actuator relay as a unit. Refer to 

BRC-59, "VDC RELAY BOX"

 .

OK or NG

OK

>> Check VDC/TCS/ABS control unit power circuit.

NG

>> Replace actuator relay.

SFIA0877E

VDC relay box

(Harness connector E57)

Body ground

Voltage

9 (L/Y)

Battery voltage (Approx. 12V)

SFIA0878E

VDC/TCS/ABS control unit

(Harness connector E218)

VDC relay box

(Harness connector E56)

Continuity

2 (SB)

5 (SB)

Yes

36 (GY/R)

7 (GY/R)

Yes

TROUBLE DIAGNOSIS

BRC-53

C

D

E

G

H

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A

B

BRC

Inspection 10 Stop Lamp Switch and Circuit

EFS001ZL

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS 

Check self-diagnosis results.

Does  “STOP LAMP SW SYSTEM” appear in self-diagnosis results
display?

YES

>> GO TO 2.

NO

>> Inspection is completed.

2. 

CHECKING STOP LAMP

1.

Disconnect stop lamp switch connector M402 and VDC/TCS/ABS control unit connector E218.

2.

Reconnect connectors securely.

3.

Start engine.

4.

Repeat pumping brake pedal carefully several times, then perform self-diagnosis again.

Do any self-diagnosis items appear?

YES

>> GO TO 3.

NO

>> Poor connection. Repair or replace applicable connector.

3. 

CHECKING STOP LAMP SWITCH CIRCUIT

1.

Disconnect stop lamp switch connector M402 and VDC/TCS/ABS control unit connector E218.

2.

Check continuity between stop lamp switch harness connector
M402 and VDC/TCS/ABS control unit harness connector E218.

OK or NG

OK

>> Perform VDC/TCS/ABS control unit self-diagnosis again.

NG

>> Open or short in harness between VDC/TCS/ABS control unit and stop lamp switch

Self-diagnosis results

CONSULT-II display items

Stop lamp switch system

SFIA0810E

SFIA0879E

VDC/TCS/ABS control unit

(Harness connector E218)

Stop lamp switch

(Harness connector M402)

Continuity

48 (R/W)

2 (R/W)

Yes

BRC-54

TROUBLE DIAGNOSIS

Inspection 11 VDC/TCS/ABS Control Unit Power Circuit

EFS001ZM

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULT 

Check self-diagnosis results.

Does “LOW BATTERY VOLTAGE” appear in self-diagnosis results display?

YES

>> GO TO 2.

NO

>> Inspection is completed.

2. 

STARTING INSPECTION

1.

Disconnect VDC/TCS/ABS control unit connector E218. Then reconnect it securely.

2.

Perform self-diagnosis.

Do any self-diagnosis items appear?

YES

>> GO TO 3.

NO

>> Poor connection. Repair or replace applicable connector.

3. 

CHECKING VDC/TCS/ABS CONTROL UNIT POWER SYSTEM (1)

1.

Disconnect VDC/TCS/ABS control unit connector E218.

2.

Turn ignition switch ON (but do not start engine).   

3.

Check voltage between VDC/TCS/ABS control unit harness
connector E218 and body ground.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 5.

Self-diagnosis results

CONSULT-II display items

Low battery voltage

SFIA0880E

VDC/TCS/ABS control unit

(Harness connector E218)

Body ground

Voltage

1 (GY)

Battery voltage (Approx. 12V)

 

 

 

 

 

 

 

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