Dodge Ram 2004 Service Manual page 386

HEATING & A/C
ACT CKT TEST PASSED, OVERCURRENT DTCS ACTIVE —
TEST
8 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
NOTE: If the Actuator Circuit Test messages, displayed on the DRBIII ,
identified which circuits are shorted together, then only measure the
resistance between those circuits. Otherwise, proceed as follows:
Measure the resistance between the Recirculation Door Driver ckt, and the Blend
Door Driver ckt, the Mode Door 1 Driver ckt, the Mode Door 2 Driver ckt, and, if
applicable, the Passenger Blend Door Driver ckt.
Measure the resistance between the Blend Door Driver ckt, and the Mode Door 1
Driver ckt, the Mode Door 2 Driver ckt, and, if applicable, the Passenger Blend Door
Driver ckt.
Measure the resistance between the Mode Door 1 Driver ckt, and the Mode Door 2
Driver ckt, and, if applicable, the Passenger Blend Door Driver ckt.
Measure the resistance between the Mode Door 2 Driver ckt and, if applicable, the
Passenger Blend Door Driver ckt.
Is the resistance below 10K ohms on any of the circuits?
Yes → Repair the door driver circuits with a resistance below 10K ohms
→ Go To 9
No
9 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Measure the resistance between the Common Door Driver circuit and each of the
remaining door driver circuits.
Is the resistance below 30.0 ohms on any of the circuits?
Yes → Go To 10
→ Go To 11
No
10 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Disconnect all door actuator harness connectors whose circuit resistance was below
30.0 ohms.
Measure the resistance between the Common Door Driver circuit and each applicable
door driver circuit.
Is the resistance below 10K ohms on any of the circuits?
Yes → Repair the door driver circuits with a resistance below 10K ohms
→ Replace all door actuators with a resistance below 30.0 ohms in
No
ACTION
for a short together.
Perform BODY VERIFICATION TEST - VER 1.
for a short to the Common Door Driver circuit.
Perform BODY VERIFICATION TEST - VER 1.
accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
372
Continued
APPLICABILITY
All
All
All