The most common causes of P318B include: Drive motor inverter malfunction; Motor position sensor fault; Motor temperature exceeding limits; Power electronics module failure. A professional OBD-II scan tool is recommended for accurate diagnosis.

How do I fix P318B for Nissan LEAF?

Recommended steps to address P318B: (1) Schedule service as soon as possible (2) Reduce driving speed and avoid long trips (3) Monitor for additional warning messages (4) Have the vehicle diagnosed by a certified technician. Always consult a qualified EV technician for high-voltage system repairs.

Is it safe to drive with P318B?

Driving with P318B is not recommended for extended distances. Schedule service within a few days to prevent further damage. Monitor for any additional warning lights.

Nissan LEAF

P318B

Warning

Electric Shift Actuator Fault

Severity

Warning

What does P318B mean?

Fault code P318B means "Electric Shift Actuator Fault". This is a Nissan-specific EV diagnostic trouble code for the Nissan EV platform. It is classified as "motor" with a severity level of "warning". Applicable models: Nissan LEAF (2010+), Nissan LEAF e+ (2019+).

Possible Causes

Drive motor inverter malfunction
Motor position sensor fault
Motor temperature exceeding limits
Power electronics module failure

Recommended Actions

1 Schedule service as soon as possible
2 Reduce driving speed and avoid long trips
3 Monitor for additional warning messages
4 Have the vehicle diagnosed by a certified technician

This code applies to all vehicles. View generic P318B information →