Nissan Pathfinder. Manual - part 257

C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR

BRC-87

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

YES

>> Replace yaw rate/side/decel G sensor. Refer to 

BRC-123, "Removal and Installation"

.

NO

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-123, "Removal and Installa-

tion"

.

BRC-88

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1155 BRAKE FLUID LEVEL SWITCH

C1155 BRAKE FLUID LEVEL SWITCH

DTC Logic

INFOID:0000000009177299

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULT

With CONSULT.

1. Turn ignition switch OFF to ON and wait 1 minute or more.

2. Perform self-diagnostic result.
Is DTC C1155 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-88, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009177300

Regarding Wiring Diagram information, refer to 

BRC-44, "Wiring Diagram"

.

1.

CHECK BRAKE FLUID LEVEL

1. Turn the ignition switch OFF.

2. Check brake fluid level. Refer to 

BR-8, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refill brake fluid. Refer to 

BR-16, "Drain and Refill"

.

2.

CONNECTOR INSPECTION

1. Turn ignition switch OFF.

2. Disconnect combination meter connector M24 and brake fluid level switch connector E21.

3. Check connectors and terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace as necessary.

3.

CHECK BRAKE FLUID LEVEL SWITCH

Check brake fluid level switch. Refer to 

BRC-89, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace reservoir tank. Refer to 

BR-29, "Disassembly and Assembly"

.

4.

CHECK BRAKE FLUID LEVEL SWITCH CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect brake fluid level switch harness connector.

3. Disconnect combination meter harness connector.

4. Check continuity between brake fluid level switch harness connector and combination meter harness con-

nector.

DTC

Display Item

Malfunction detected condition

Possible causes

C1155

BR FLUID LEVEL LOW

When brake fluid level low signal is detected.

• Harness or connector
• ABS actuator and electric unit 

(control unit)

• Brake fluid level switch
• Combination meter

C1155 BRAKE FLUID LEVEL SWITCH

BRC-89

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

5. Check continuity between brake fluid level switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning components.

5.

CHECK BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT

Check continuity between brake fluid level switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace malfunctioning components.

6.

CHECK COMBINATION METER

Check if indication and operation of combination meter are normal. Refer to 

MWI-9, "METER SYSTEM : Sys-

tem Description"

.

Is the inspection result normal?

YES

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-123, "Removal and Installa-

tion"

.

NO

>> Replace combination meter. Refer to 

MWI-82, "Removal and Installation"

.

Component Inspection

INFOID:0000000009177301

1.

CHECK BRAKE FLUID LEVEL SWITCH

1. Turn the ignition switch OFF.

2. Disconnect brake fluid level switch harness connector.

3. Check continuity between terminals of brake fluid level switch.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace reservoir tank. Refer to 

BR-29, "Disassembly and Assembly"

.

Brake fluid level switch

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

E21

1

M24

25

Yes

Brake fluid level switch

—

Continuity

Connector

Terminal

E21

1

Ground

No

Brake fluid level switch

—

Continuity

Connector

Terminal

E21

2

Ground

Yes

Brake fluid level switch

Condition

Continuity

Terminal

1 – 2

When brake fluid level in reservoir tank is within the specified level.

No

When brake fluid level in reservoir tank is less than the specified 
level.

Yes

BRC-90

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1160 DECEL G SEN SET

C1160 DECEL G SEN SET

DTC Logic

INFOID:0000000009177302

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULT

With CONSULT.

1. Turn ignition switch OFF to ON.

2. Perform self-diagnostic result.
Is DTC C1160 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-90, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009177303

1.

DECEL G SENSOR CALIBRATION

Perform decel G sensor calibration. Refer to 

BRC-57, "Work Procedure"

.

>> GO TO 2.

2.

CHECK SELF-DIAGNOSTIC RESULT

With CONSULT.

Perform self-diagnostic result.
Is DTC C1160 detected?

YES

>> GO TO 3.

NO

>> Inspection End.

3.

CHECK YAW RATE/SIDE/DECEL G SENSOR SYSTEM

Check yaw rate/side/decel G sensor system. Refer to 

BRC-85, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-123, "Removal and Installa-

tion"

.

NO

>> Repair or replace malfunctioning components.

DTC

Display Item

Malfunction detected condition

Possible causes

C1160

DECEL G SEN SET

When calibration of yaw rate/side/decel G sensor is 
not complete.

• Yaw rate/side/decel G sensor
• Harness or connector
• ABS actuator and electric unit 

(control unit)

• Decel G sensor calibration is 

not performed