Chrysler 300M 2002 Service Manual page 2029

HEATING & A/C
MODE DOOR STALL TEST FAILURE —
TEST
1 Gain access to the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC)
located in the center of the instrument panel above the accelerator pedal.
Turn the ignition on.
While backprobing measure the voltage of the 5 volt supply circuit (cavity #6) in the
inline connector.
What voltage is present?
Zero volts.
4.5 to 5.5 Volts
Over 5.5 Volts
2 Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module C2 harness connector.
Measure the resistance between ground and the 5 volt supply circuit.
Is the resistance below 100.0 ohms?
Yes → Repair the 5 volt supply circuit for a short to ground.
→ Go To 3
No
3 Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module C2 harness connector.
Measure the resistance of the 5 volt supply wire between the BCM connector and the
inline (C202/3) connector (I/P harness side).
Is the resistance below 5.0 ohms?
Yes → Go To 4
→ Repair the 5 volt supply circuit for an open.
No
4 Turn the ignition off.
Ensure the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in the
center of the instrument panel above the accelerator pedal is connected.
Disconnect the Body Control Module C1 harness connector
Disconnect the Body Control Module C2 harness connector.
Measure the resistance between the 5 volt supply circuit in the BCM C2 connector
and the sensor ground circuit in the BCM C1 connector.
Is the resistance below 2000.0 ohms?
Yes → Go To 5
→ Replace the Body Control Module.
No
ACTION
Go To 2
Go To 7
Go To 19
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
Continued
306
APPLICABILITY
All
All
All
All