Chrysler Town and Country 2003 Owner's Manual page 266

AUTOMATIC TEMPERATURE CONTROL
REAR BLEND DOOR NOT RESPONDING (ACTIVE) —
TEST
3 Turn the ignition off.
Disconnect the Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connectors.
Measure the resistance between the Rear Blend Door Driver (A) and (B) circuits.
Is the resistance above 100k ohms?
Yes → Go To 4
No
4 Turn the ignition off.
Disconnect the Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance of the Rear Blend Door Driver (A) circuit.
Is the resistance below 5.0 ohms?
Yes → Go To 5
No
5 Turn the ignition off.
Disconnect the Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance of the Rear Blend Door Driver (B) circuit.
Is the resistance below 5.0 ohms?
Yes → Go To 6
No
6 Turn the ignition off.
Disconnect the ATC C1 harness connector.
Measure the resistance between the Rear Blend Door Driver (A) and (B) circuits.
Is the resistance between 26.0 and 46.0 ohms?
Yes → Replace the ATC.
No
7 If there are no possible causes remaining, view repair.
Repair
ACTION
→ Repair the Rear Blend Door Driver (A) and (B) circuits for a short
together.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
→ Repair the Rear Blend Door Driver (A) circuit for an open.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
→ Repair the Rear Blend Door Driver (B) circuit for an open.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
→ Go To 7
Replace the Rear Blend Door Actuator.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
242
Continued
APPLICABILITY
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