Infiniti M45 (Y34). Manual - part 278

 

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Infiniti M45 (Y34). Manual - part 278

 

 

TROUBLE DIAGNOSIS

BRC-55

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

3. 

CHECK THE HARNESS BETWEEN THE BRAKE FLUID LEVEL SENSOR AND THE VDC/TCS/ABS 

CONTROL UNIT

1.

Turn the ignition switch OFF and disconnect the brake fluid level
sensor connector, VDC/TCS/ABS control unit, connectors.

2.

Check the continuity between the brake fluid level sensor har-
ness connector and the VDC/TCS/ABS control unit connector.

OK or NG

OK

>> Connect the connectors and conduct a VDC/TCS/ABS control unit self-diagnosis.

NG

>> If the open or short in harness, repair or replace the harness.

Inspection 14 CAN Communication System

AFS001KI

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF, disconnect the VDC/TCS/ABS control unit connector, and check the terminal for
deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace the terminal.

2.

Reconnect connector to perform self-diagnosis.

Is “CAN COMM CIRCUIT” displayed in the self-diagnosis display items?

YES

>> Print out the self-diagnostic results, and refer to 

LAN-21, "CAN Communication Unit"

 .

NO

>> Connector terminal connection is loose, damaged, open, or shorted.

Inspection 15 When “SHIFT POSITION ERROR” Appears in Self-Diagnosis 
Results Display

AFS001KJ

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.

VDC/TCS/ABS control unit

(Harness connector E218)

Brake fluid level sensor

(Harness connector E73)

Continuity

40 (Y)

1 (Y)

Continuity 

should exist.

40 (Y)

Ground

Continuity 

should not exist.

Ground 2 

(B)

continuity should 
exist.

SFIA1939E

Self-diagnosis results

CONSULT-II display items

Shift position error

BRC-56

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

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 PNP SWITCH

Perform the A/T PNP switch inspection. Refer to 

AT-110, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"

.

Do any self-diagnosis items appear?

YES

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

NO

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

Inspecting Components

AFS000M1

VDC OFF SWITCH

Disconnect VDC OFF switch connector. Check continuity
between terminal No. 1 and terminal No. 2.

VDC RELAY BOX

Disconnect VDC relay box harness connector E55, E56 and E57.
Check continuity, resistance value, and insulation between any pair
of terminals in the VDC relay box.

Selector lever position

Position

(data monitor)

P position

ON

Other than P position.

OFF

No.1 to No.2

When pressing the switch

: Continuity should exist.

When releasing the switch

: Continuity should not exist.

SFIA0986E

SFIA2215E

TROUBLE DIAGNOSIS

BRC-57

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

Continuity, Resistance

VDC ACTUATOR

Disconnect VDC actuator connectors. Check continuity and resistance value between any pair of terminals on
the actuator.

CAUTION:

Make sure actuator motor is correctly grounded.

SFIA0988E

SFIA0989E

BRC-58

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

Continuity, resistance

SFIA0990E

 

 

 

 

 

 

 

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