Chrysler Concorde 2004 Service Manual page 306

HEATING & A/C
EVAPORATOR TEMPERATURE SENSOR FAILURE —
TEST
8 Ensure the Evaporator Temp Sensor is connected at this time.
Turn the ignition off.
With the DRBIII , read Body Computer DTC's.
Turn the ignition on.
Wait 2 minutes.
With the DRBIII , read Body Computer DTC's.
Does the DRBIII display Evaporator Temperature Sensor Failure DTC?
Yes → Replace the Evaporator Temperature Sensor.
→ Go To 9
No
9 Ensure the Evaporator Temp Sensor is connected at this time.
Start the engine.
Turn the A/C system on and run for at least 5 minutes (so water will form on the
evaporator temperature sensor).
With the DRBIII , read Body Computer DTC's.
Does the DRBIII display Evaporator Temperature Sensor Failure DTC?
Yes → Replace the Evaporator Temperature Sensor.
→ There is no problem found at this time. The evaporator temper-
No
10 Turn the ignition off.
Disconnect the Evaporator Temperature Sensor harness connector.
Disconnect the Body Control Module C2 harness connector.
Measure the resistance between ground and the Evaporator Temperature Sensor
Signal circuit at the BCM C2 connector.
Is the resistance below 1000.0 ohms?
Yes → Repair the Evaporator Temperature Sensor Signal circuit for a
→ Go To 11
No
11 Turn the ignition off.
Disconnect the Evaporator Temperature Sensor harness connector.
Disconnect the Body Control Module C1 harness connector.
Disconnect the Body Control Module C2 harness connector.
Measure the resistance between the Evaporator Temp Sensor Signal circuit and the
Sensor Ground circuit in the Evaporator Temperature Sensor connector.
Is the resistance below 1000.0 ohms?
Yes → Repair the Evaporator Temperature Sensor Signal circuit for a
→ Go To 12
No
12 If there are no possible causes remaining, view repair.
Repair
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
ature sensor should be fully operational. Refer to the wiring
diagrams located in the service information to help isolate a
possible intermittent wiring problem.
Perform BODY VERIFICATION TEST - VER 1.
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
short to the Sensor Ground circuit.
Perform BODY VERIFICATION TEST - VER 1.
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
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Continued
APPLICABILITY
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