Dodge Ram 2004 Service Manual page 385

ACT CKT TEST PASSED, OVERCURRENT DTCS ACTIVE —
TEST
5 Turn the ignition off.
Ensure that the A/C - Heater Control C1 harness connector is connected to the A/C
- Heater Control Module.
Turn the ignition on.
With the DRBIII in HVAC, System Tests, actuate the Actuator Circuit Test.
What message does the DRBIII display?
Same msg as from start of test
Different msg than from start of test
6 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Turn the ignition on.
Measure the voltage between each of the door driver circuits and ground.
Is there any voltage present on any of the circuits?
Yes → Repair all door driver circuits with voltage present for a short to
→ Go To 7
No
7 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Measure the resistance between ground and each of the door driver circuits.
Is the resistance below 10K ohms on any of the circuits?
Yes → Repair all door driver circuits with a resistance below 10K ohms
→ Go To 8
No
ACTION
Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
Using the wiring diagram as a guide, inspect the wiring &
connectors for conditions causing an intermittent short that set
the original test msg. Repair as necessary. If DRB displays a msg
for a different door driver ckt, return to Test 1 of this Symptom.
Perform BODY VERIFICATION TEST - VER 1.
voltage.
Perform BODY VERIFICATION TEST - VER 1.
for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
371
HEATING & A/C
Continued
APPLICABILITY
All
All
All