Chrysler 300M 2002 Service Manual page 2023

HEATING & A/C
Symptom:
MODE DOOR OUTPUT SHORTED TO BATTERY
When Monitored and Set Condition:
MODE DOOR OUTPUT SHORTED TO BATTERY
When Monitored: Whenever the BCM attempts to move one of the HVAC actuators.
Set Condition: When the BCM detects one or more of the following outputs shorted to
battery: mode door driver, blend door driver, recirculation door driver or the common door
driver. (NOTE: all shorted to battery codes will be set when one output is shorted.
BLEND AIR DOOR DRIVER CIRCUIT SHORT TO BATTERY
MODE DOOR DRIVER CIRCUIT SHORT TO BATTERY
RECIRCULATION DOOR DRIVER CIRCUIT SHORT TO BATTERY
COMMON DOOR DRIVER CIRCUIT SHORT TO BATTERY
BODY CONTROL MODULE - DRIVER SHORTED INTERNAL
BLEND DOOR ACTUATOR - SHORTED
MODE DOOR ACTUATOR - SHORTED
RECIRCULATION DOOR ACTUATOR - SHORTED
DRIVER CIRCUITS SHORTED TOGETHER
TEST
1 Disconnect the Body Control Module C1 harness connector.
Turn the ignition on.
Measure the voltage of the Blend Air Door Driver circuit.
Is the voltage above 10.0 volts?
Yes → Repair the Blend Air Door Driver circuit for a short to battery.
→ Go To 2
No
2 Disconnect the Body Control Module C1 harness connector.
Turn the ignition on.
Measure the voltage of the Mode Door Driver circuit.
Is the voltage above 10.0 volts?
Yes → Repair the Mode Door Driver circuit for a short to battery.
→ Go To 3
No
POSSIBLE CAUSES
ACTION
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.
300
APPLICABILITY
All
All