P1684

SYMPTOM
P1684 - BATTERY WAS DISCONNECTED

WHEN MONITORED
Whenever the ignition is in the RUN/START position.

SET CONDITION
This DTC is set whenever the Transmission Control Module (TCM) is disconnected from battery power (B+) or ground. It will also be set during the (DRB III Quick Battery Disconnect procedure.

NOTE: Due to the integration of the Powertrain and Transmission Control Modules, the transmission part of the PCM has its own specific power and ground circuits.

POSSIBLE CAUSES
- Battery was disconnected
- PCM was replaced or disconnected
- Quick learn was performed
- Intermittent wiring and connectors
- Fused B+ circuit to TCM open
- Ground circuit open