Chrysler Crossfire. Manual — part 837
REAR SPOILER LIMIT SWITCH FAILURE
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BODY - ELECTRICAL DIAGNOSTICS
23 - 19
REAR SPOILER LIMIT SWITCH FAILURE (CONTINUED)
When Monitored and Set Condition
•
When Monitored: Continuous.
•
Set Condition: The Body Control Module (BCM) sense both Rear Spoiler Limit Switches shorted to ground at
the same time.
POSSIBLE CAUSES
SPOILER LIMIT SWITCH SIGNAL (UP) CIRCUIT SHORTED TO GROUND
SPOILER LIMIT SWITCH SIGNAL (DOWN) CIRCUIT SHORTED TO GROUND
REAR SPOILER LIMIT SWITCH
BODY CONTROL MODULE
For a complete Rear Spoiler Circuit Diagram, (Refer to 23 - BODY - SCHEMATICS AND DIAGRAMS).
Diagnostic Test
1.
SPOILER LIMIT SWITCH SIGNAL (UP) CIRCUIT
Turn the ignition off.
Disconnect the Rear Spoiler Limit Switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Spoiler Limit Switch Signal (Up) circuit at
the Spoiler Limit Switch harness connector.
Is the voltage above 10.0 volts?
Yes
>> Go to 2
No
>> Go to 4
2.
SPOILER LIMIT SWITCH SIGNAL (DOWN) CIRCUIT
With the ignition on.
Measure the voltage of the Spoiler Limit Switch Signal (Down) circuit
at the Rear Spoiler Limit Switch harness connector.
Is the voltage above 10.0 volts?
Yes
>> Replace the Rear Spoiler Limit Switch.
Perform REAR SPOILER VERIFICATION TEST.
No
>> Go to 3
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BODY - ELECTRICAL DIAGNOSTICS
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REAR SPOILER LIMIT SWITCH FAILURE (CONTINUED)
3.
SPOILER LIMIT SWITCH SIGNAL (DOWN) CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the BCM C4 harness connector.
Measure the resistance between ground and the Spoiler Limit Switch
(Down) circuit.
Is the resistance below 100k ohms?
Yes
>> Repair the Spoiler Limit Switch Signal (Down) circuit for a
short to ground.
Perform REAR SPOILER VERIFICATION TEST.
No
>> Replace the Body Control Module.(Refer to 8 - ELECTRI-
CAL/ELECTRONIC CONTROL MODULES/BODY CON-
TROL/CENTRAL TIMER MODUL - REMOVAL).
Perform REAR SPOILER VERIFICATION TEST.
4.
SPOILER LIMIT SWITCH SIGNAL (UP) CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the BCM C4 harness connector.
Measure the resistance between ground and the Spoiler Limit Switch
(Up) circuit.
Is the resistance below 100k ohms?
Yes
>> Repair the Spoiler Limit Switch Signal (Up) circuit for a
short to ground.
Perform REAR SPOILER VERIFICATION TEST.
No
>> Replace the Body Control Module.(Refer to 8 - ELECTRI-
CAL/ELECTRONIC CONTROL MODULES/BODY CON-
TROL/CENTRAL TIMER MODUL - REMOVAL).
Perform REAR SPOILER VERIFICATION TEST.
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BODY - ELECTRICAL DIAGNOSTICS
23 - 21
REAR SPOILER MOTOR FAILURE
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BODY - ELECTRICAL DIAGNOSTICS
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