Description

DTC B1318 is generated when the Electronic Control Unit (ECU) detects system voltage was less than 9.5 volts for more than 5 seconds.

Possible Contributing Component/Vehicle Wiring Faults
- Charging system under-voltage condition.
- Excessive resistance in ECU ground circuits (Pins 1 and 14).
- Excessive resistance in Circuit 601 (LB/PK) to Pin 20.