Chrysler Crossfire. Manual — part 839

* REAR SPOILER INOPERATIVE (CONTINUED)

POSSIBLE CAUSES

OPEN REAR SPOILER SWITCH SENSE CIRCUIT

OPEN REAR SPOILER SWITCH GROUND CIRCUIT

REAR SPOILER SWITCH

BODY CONTROL MODULE

For a complete Rear Spoiler Circuit Diagram

Diagnostic Test

1.

REAR SPOILER SWITCH

Turn the ignition off.

Disconnect the BCM C4 harness connector.

Note: Check connectors - Clean/repair as necessary.
Press and hold the Rear Spoiler Switch in the direction to raise the Rear Spoiler.

Measure the resistance between ground and the Rear Spoiler Switch Sense at the BCM C4 harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Go to 4

No

>> Go to 2

2.

OPEN REAR SPOILER SWITCH SENSE CIRCUIT

With the ignition off.

Disconnect the Rear Spoiler Switch harness connector.

Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Rear Spoiler Switch Sense circuit from
the BCM C4 harness connector to the Rear Spoiler Switch harness
connector.

Is the resistance below 5.0 ohms?

Yes

>> Go to 3

No

>> Repair the Rear Spoiler Switch Sense circuit for an open.

Perform REAR SPOILER VERIFICATION TEST.

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BODY - ELECTRICAL DIAGNOSTICS

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* REAR SPOILER INOPERATIVE (CONTINUED)

3.

REAR SPOILER SWITCH SENSE CIRCUIT GROUND CIRCUIT

With the ignition off.

Measure the resistance between ground and the Rear Spoiler Switch Ground circuit at the Rear Spoiler Switch
harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Replace the Rear Spoiler Switch.

Perform REAR SPOILER VERIFICATION TEST.

No

>> Repair the Rear Spoiler Switch Ground circuit for an open.

4.

REAR SPOILER SWITCH

With the ignition off.

Press and hold the Rear Spoiler Switch in the direction to lower the Rear Spoiler.

Measure the resistance between ground and the Rear Spoiler Switch Sense at the BCM C4 harness connector.

Is the resistance between 190.0 - 210.0 ohms?

Yes

>> Replace the Body Control Module.(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/

BODY CONTROL/CENTRAL TIMER MODUL - REMOVAL).

Perform REAR SPOILER VERIFICATION TEST.

No

>> Replace the Rear Spoiler Switch.

Perform REAR SPOILER VERIFICATION TEST.

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BODY - ELECTRICAL DIAGNOSTICS

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REAR SPOILER VERIFICATION TEST

REAR SPOILER VERIFICATION TEST

1.

Disconnect all jumper wires and reconnect all previously disconnected components and connectors.

Operate the Spoiler Switch to fully extend the spoiler.

Operate the Spoiler Switch to fully retract the spoiler.

Drive the vehicle at 89 km/h (55 MPH) and verify the spoiler operation.

With the DRB III

T

, confirm that no DTCs are present and that all components are functioning properly.

If a DTC is present, refer to the appropriate category and select the corresponding symptom.

Are any DTCs present?

YES

>> Repair is not complete, refer to appropriate symptom.

NO

>> Repair is complete.

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SCHEMATICS AND DIAGRAMS

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BODY - ELECTRICAL DIAGNOSTICS

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