P1684

Symptom: P1684-BATTERY WAS DISCONNECTED

When Monitored and Set Condition:

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 DRBIII 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
- FUSED B+ CIRCUIT TO TCM OPEN
- GROUND CIRCUIT OPEN
- INTERMITTENT WIRING AND CONNECTORS

Test 1:

Test 2 - Test 5:

Test 6 - Test 7: