DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

STOP LAMP SWITCH SYSTEM
Check the stop lamp switch system. Refer to DTC Diagnosis Procedure .

Is the inspection result normal?

YES

GO TO 2.

NO

Repair or replace stop lamp switch system.
CHECK BRAKE FLUID LEAKAGE
Check the brake fluid leakage. Refer to Inspection .

Is the inspection result normal?

YES

GO TO 3.

NO

Repair or replace brake fluid leakage part.
CHECK BRAKE PIPING
Check the brake piping. Refer to Inspection .

Is the inspection result normal?

YES

GO TO 4.

NO

Repair or replace brake piping.
- Front: Refer to Removal and Installation .
- Rear: Refer to Removal and Installation .
CHECK BRAKE PEDAL
Check the brake pedal.
- Brake pedal height: Refer to Inspection and Adjustment .
- Brake pedal assembly: Refer to Exploded View .
Is the inspection result normal?

YES

GO TO 5.

NO

Adjust the brake pedal height or replace brake pedal assembly.
- Adjust the brake pedal: Refer to Inspection and Adjustment .
- Replace the brake pedal: Refer to Removal and Installation .
CHECK HYDRAULIC BOOSTER ASSEMBLY
Check the hydraulic booster assembly. Refer to Inspection .

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace hydraulic booster assembly. Refer to Removal and Installation .
CHECK FRONT DISC BRAKE
Check the front disc brake caliper. Refer to Inspection Brake Caliper Assembly and Disc Rotor .

Is the inspection result normal?

YES

GO TO 7.

NO

Repair or replace front disc brake caliper. Refer to Removal and Installation of Brake Caliper Assembly and Rotor .
CHECK REAR DISC BRAKE
Check the rear disc brake. Refer to Inspection Brake Caliper Assembly and Disc Rotor .

Is the inspection result normal?

YES

GO TO 8.

NO

Repair or replace rear disc brake. Refer to Removal and Installation of Brake Caliper Assembly and Rotor .
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT
Check the ABS actuator and electric unit (control unit) power supply and ground circuits. Refer to Diagnosis Procedure .

Is the inspection result normal?

YES

GO TO 9.

NO

Repair / replace harness, connector, fuse, or fusible link.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
CONSULT
1. Erase "Self Diagnostic Result" mode of "ABS".
2. Turn the ignition switch OFF.
  NOTE: Wait at least 10 seconds after turning ignition switch OFF.
3. Start the engine.
  NOTE: Wait at least 10 seconds after starting the engine.
4. Start the engine and drive the vehicle for a short period of time.
  NOTE: Vehicle must be driven after repair or replacement to erase the previous DTCs.
5. Stop the vehicle.
6. Perform "Self Diagnostic Result" mode of "ABS".
Is DTC "C1142" detected?

YES

Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation .

NO

Check the ABS actuator and electric unit (control unit) harness connector and terminal for damage, looseness and disconnection. Repair / replace harness, connector, or terminal.