Dodge Ram 2004 Service Manual page 410

HEATING & A/C
TX FAILURE (ACTIVE) —
TEST
4 Turn the ignition on.
With the DRBIII , erase HVAC DTCs.
Cycle the ignition switch and wait approximately 1 minute.
With the DRBIII , read HVAC DTC's.
Did this DTC reset?
Yes → Replace the A/C - Heater Control Module in accordance with the
→ Using the wiring diagram/schematic as a guide, inspect the
No
Continued
ACTION
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
wiring and connectors to help isolate a possible intermittent
wiring condition.
Perform BODY VERIFICATION TEST - VER 1.
396
APPLICABILITY
All