Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Malfunction code No. 71
- INSPECTION START
ABS actuator and electric unit power supply and ground circuit inspection
Courtesy of NISSAN MOTOR CO., U.S.A.
: GO TO 2.
- CHECK CONNECTOR
- Disconnect ABS actuator and electric unit connector.
Check terminals for damage or loose connection. Then reconnect connector.
- Carry out self-diagnosis again.
Does warning lamp activate again?
YES: GO TO 3.
NO: Inspection End.
- Disconnect ABS actuator and electric unit connector.
- CHECK ABS ACTUATOR AND ELECTRIC UNIT POWER SUPPLY CIRCUIT
Check voltage. Refer to "DIAGNOSTIC PROCEDURE ".
Does battery voltage exist when ignition switch is turned ON?
YES: GO TO 4.
NO: Check harness for open or short between ABS actuator and electric unit and fuse.
- SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is code No. 71 indicated again?
YES: Replace ABS actuator and electric unit. Refer to "ACTUATOR ".
NO: Inspect the system according to the code No.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.