Pinpoint Test 15: DTC B1318 (Front Controls Interface Module - FCIM)

PINPOINT TEST 15: DTC B1318 (FRONT CONTROLS INTERFACE MODULE [FCIM])

Normal Operation

- DTC B1318 (Battery Voltage Low) - set by the front controls interface module (FCIM) when the supply voltage falls below 10 volts for at least 10 seconds during normal operation.

Possible Causes
- Wiring, terminals or connectors
- High circuit resistance
- FCIM

Diagnostic Procedure

CAUTION:Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE:Failure to disconnect the battery when instructed will result in false resistance readings. See Battery Disconnect.