NOTE: Please see the step by step troubleshooting procedures for this specific code.
PROBABLE CAUSES:
1. Ambient air temperature sensor not programmed correctly in ECM.
2. Ambient air temperature sensor connector/harness.
3. Ambient air temperature sensor.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 168 FMI 18 (CPC) Battery Voltage Low
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 168 FMI 14 (MCM, CPC) ECU Power Down Not Completed (Main Battery Terminal Possibly Floating)
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 168 FMI 9 (CPC) Battery Connection Lost
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 168 FMI 7 (CPC) Opt Idle Detected Charging System or Battery Failure
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 168 FMI 1 (MCM) Battery Voltage Low
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 168 FMI 1 (IPPC) Battery Plus terminal 30 Voltage Too Low
