Internal Controller

Symptom:
INTERNAL CONTROLLER

Test 1:

When Monitored:
Always monitored with system active at each ignition cycle

Set Condition:
This code is set whenever Transmission Control Module (TCM) senses an internal error. If this Internal Controller DTC is set with any Solenoid DTC's repair the Solenoid DTC's first, erase all DTC's, then verify the Internal Controller DTC sets before replacing the TCM.

POSSIBLE CAUSES
- TCM - INTERNAL ERROR