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.

CHECK ENGINE SYSTEM
CONSULT

Perform "Self Diagnostic Result" mode of "ENGINE".

Is DTC detected?

YES

Check the DTC. Refer to DTC Index (VQ40DE) or DTC Index (VK56VD).

NO

GO TO 2.
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 3.

NO

Repair / replace harness, connector, fuse, or fusible link.
CHECK CONNECTOR AND TERMINAL
1. Turn the ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect ABS actuator and electric unit (control unit) harness connector.
4. Check the connector for disconnection or looseness.
5. Check the pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?

YES

GO TO 4.

NO

Repair / replace harness, connector, or terminal, securely lock the connector, and GO TO 4.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
CONSULT
1. Connect ECM harness connector.
2. Connect ABS actuator and electric unit (control unit) harness connector.
3. Erase "Self Diagnostic Result" of "ABS"
4. Turn the ignition switch OFF.
  NOTE: Wait at least 10 seconds after turning ignition switch OFF.
5. Start the engine.
  NOTE: Wait at least 10 seconds after starting the engine.
6. Perform "Self Diagnostic Result" mode of "ABS".
Is DTC "C1130" or "U1000" detected?

YES

GO TO 1.

YES

Refer to Trouble Diagnosis Flow Chart .

NO

Inspection End.