Chrysler Town and Country 2003 Owner's Manual page 777

*REPAIRING CMTC DISPLAYS DOUBLE DASH ( - - ) IN TEMP DISPLAY
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Continued
TEST
8 Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the IPM C1 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Ambient Temperature Sensor Return circuit.
Does the resistance measure less than 5.0 ohms?
Yes → Go To 9
→ Repair the Ambient Temperature Sensor Return circuit for an
No
9 Turn the ignition off.
Disconnect and isolate the battery negative cable.
Disconnect the IPM C1 harness connector.
Disconnect the FCM from the IPM.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Ambient Temperature Sensor Signal circuit and the
Return circuit through the IPM.
Does each circuit resistance measure less than 5.0 ohms?
Yes → Replace the Front Control Module in accordance with the Service
→ Replace the Intelligent Power Module in accordance with the
No
ACTION
open.
Perform BODY VERIFICATION TEST - VER 1.
Information.
Perform BODY VERIFICATION TEST - VER 1.
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
OVERHEAD CONSOLE
753
APPLICABILITY
All
All