Chrysler 300M 2002 Service Manual page 1969

HEATING & A/C
A/C CONTROL MODE DOOR INPUT OPEN OR SHORTED TO BATTERY
(MANUAL A/C) —
TEST
3 Turn the ignition off.
Disconnect the Manual Temp Control Head C1 harness connector.
Reconnect the BCM C2 harness connector.
Turn the ignition on.
Measure the voltage of the Mode Switch MUX circuit.
Is the voltage above 4.9 volts?
Yes → Replace the Control Head.
→ Replace the Body Control Module.
No
Continued
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
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APPLICABILITY
All