Infiniti F50. Manual - part 278

TROUBLE DIAGNOSIS

BRC-55

C

D

E

G

H

I

J

K

L

M

A

B

BRC

4. 

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

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

NG

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

5. 

CHECKING VDC/TCS/ABS CONTROL UNIT POWER SYSTEM (2)

1.

Check fuse 10A.

2.

Disconnect VDC/TCS/ABS control unit connector E218 and positive battery terminal.

3.

Check continuity between battery positive terminal and VDC/
TCS/ABS control unit harness connector E218.

OK or NG

OK

>> Check for non-standard conditions in battery (terminal looseness, low voltage, etc.) And alterna-

tor.

NG

>>

●

Replace fuse 10A.

●

Open or short in harness.

SFIA0809E

VDC/TCS/ABS control unit

(Harness connector E218)

Body ground

Continuity

27 (B)

—

Yes

28 (B)

—

Yes

29 (B)

—

Yes

33 (B)

—

Yes

SFIA0836E

VDC/TCS/ABS control unit

(Harness connector E218)

 Positive battery terminal

Continuity

1 (GY)

—

Yes

BRC-56

TROUBLE DIAGNOSIS

Inspection 12 When “SHIFT POSITION ERROR” Appears in Self-Diagnosis 
Results Display

EFS001ZN

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS 

Check self-diagnosis results.

Does “SHIFT POSITION ERROR” appear in self-diagnosis results display?

YES

>> GO TO 2.

NO

>> Inspection is completed.

2. 

DATA MONITOR CHECK

1.

Connect CONSULT-II. Start engine.

2.

In “DATA MONITOR” select “ITEM MENU” and then check P position.

OK or NG

OK

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

NG

>> GO TO 3.

3. 

CHECKING A/T INHIBITOR SWITCH

Perform A/T inhibitor switch inspection. Refer to 

AT-105, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"

.

Do any self-diagnosis items appear?

YES

>> Repair indicated items and perform VDC/TCS/ABS control unit self-diagnosis again.

NO

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

Inspection 13 When “EMERGENCY BRAKE” Appears on Self-Diagnosis Results 
Display

EFS001ZO

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS 

Check self-diagnosis results.

If anything other than “EMERGENCY BRAKE” appears in self-diagnosis results display, follow the instructions
in the note below.

NOTE:
“EMERGENCY BRAKE” is displayed when a malfunction is detected in the control unit itself. If this display
item appears, replace control unit.
Does “EMERGENCY BRAKE” appear on self-diagnosis results display?

>> Replace VDC/TCS/ABS control unit, and perform self-diagnosis again.

Self-diagnosis results

CONSULT-II display items

Shift position error

Selector lever position

Position

(data monitor)

P position

ON

Other than P position.

OFF

Self-diagnosis results

CONSULT-II display items

Emergency brake

TROUBLE DIAGNOSIS

BRC-57

C

D

E

G

H

I

J

K

L

M

A

B

BRC

Inspection 14 When “STEERING ANGLE SENSOR HAS NOT BEEN COR-
RECTED” Appears on Self-Diagnosis Results Display

EFS001ZP

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS (1)

Check self-diagnosis results.

Does anything besides “STEERING ANGLE SENSOR HAS NOT BEEN CORRECTED” appear on self-diag-
nosis results display?

YES

>> Inspect and repair indicated items. Then perform self-diagnosis again.

NO

>> Perform adjustment of steering angle sensor neutral position. Then GO TO 2.

2. 

CHECKING SELF-DIAGNOSIS RESULTS (2)

1.

Turn ignition switch OFF, and ON to erase self-diagnosis results, and perform VDC/TCS/ABS control unit
self-diagnosis again.

Does anything appear on self-diagnosis results display?

YES

>> Replace steering angle sensor. Then perform adjustment of neutral position and perform self-

diagnosis again.

NO

>> Inspection is completed.

Inspection 15 Brake Fluid Level in Reservoir Tank, Communication Circuit 
Between VDC/TCS/ABS Control Unit and Brake Fluid Level Sensor

EFS001ZQ

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS (1)

Check self-diagnosis results.

Does brake warning lamp turn on?

YES

>> Check pad for wear. Check brake fluid for leakage.

NO

>> GO TO 2.

2. 

CHECKING SELF-DIAGNOSIS RESULTS (2)

1.

Disconnect brake fluid level switch connector E74 and VDC/TCS/ABS control unit connector E218.

2.

Reconnect connectors securely, then perform VDC/TCS/ABS control unit self-diagnosis again.

Does anything appear on self-diagnosis results display?

YES

>> Poor connector connections. Repair or replace connectors.

NO

>> GO TO 3.

Self-diagnosis results

CONSULT-II display items

Steering angle sensor has not been corrected.

Self-diagnosis results

CONSULT-II display items

Brake fluid level switch

SFIA0230E

BRC-58

TROUBLE DIAGNOSIS

3. 

CHECKING CIRCUIT BETWEEN BRAKE FLUID LEVEL SENSOR AND VDC/TCS/ABS  CONTROL 

UNIT

1.

Disconnect brake fluid level switch connector E74 and VDC/TCS/ABS control unit connector E218.

2.

Check continuity between brake fluid level sensor harness con-
nector E74 and VDC/TCS/ABS control unit harness connector
E218.

3.

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

OK or NG

OK

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

again.

NG

>> Open or short in harness. Repair or replace suspect har-

ness.

Inspection 16 CAN Communications Lines, VDC/TCS/ABS Control Unit and 
Steering Angle Sensor System

EFS001ZR

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS (1)

Check self-diagnosis results.

Do self-diagnosis results indicate anything other than the above?

YES

>> GO TO 3.

NO

>> GO TO 2.

2. 

CHECKING CONNECTORS AND HARNESS BETWEEN VDC/TCS/ABS CONTROL UNIT AND 

STEERING ANGLE SENSOR

1.

Disconnect battery negative terminal.

2.

Turn ignition switch OFF. 

3.

Disconnect VDC/TCS/ABS control unit connector E218 and steering angle sensor connector M52.

4.

Check for open circuit and short circuits in harness between VDC/TCS/ABS control unit harness connec-
tor E218 and steering angle sensor harness connector M52.

OK or NG

OK

>> GO TO 3.

NG

>> Harness connector malfunction. Repair or replace. 

VDC/TCS/ABS control unit

(Harness connector E218)

Brake fluid level switch

(Harness connector E74)

Continuity

40 (Y)

1 (Y)

Yes

VDC/TCS/ABS control unit

(Harness connector E218)

Body ground

Continuity

40 (Y)

—

No

SFIA1001E

SFIA0868E

Self-diagnosis results

CONSULT-II display items

CAN communication system

Steering angle sensor communication line

SFIA0935E