Chrysler Crossfire. Manual — part 225

NO CAN COMMUNICATIONS WITH PCM (CONTINUED)

8.

CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE

Turn the ignition on.

Measure the voltage of the CAN C Bus (+) circuit at the PCM C4 har-
ness connector.

Is the voltage above 1.0 volt?

Yes

>> Repair the CAN C Bus (+) circuit for a short to voltage.

Perform BODY VERIFICATION TEST.

No

>> Go To 9

9.

CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE

With the ignition on.

Measure the voltage of the CAN C Bus (-) circuit at the PCM C4 har-
ness connector.

Is the voltage above 1.0 volt?

Yes

>> Repair the CAN C Bus (-) circuit for a short to voltage.

Perform BODY VERIFICATION TEST.

No

>> Go To 10

ZH

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 25

NO CAN COMMUNICATIONS WITH PCM (CONTINUED)

10.

CAN C BUS (-) CIRCUIT SHORT TO GROUND

Turn the ignition off.

Measure the resistance between ground and the CAN C Bus (-) cir-
cuit.

Is the resistance below 100 ohms?

Yes

>> Repair the CAN C Bus (-) circuit for a short to ground.

Perform BODY VERIFICATION TEST.

No

>> Repair the CAN C Bus (+) circuit for a short to ground.

Perform BODY VERIFICATION TEST.

11.

CAN C BUS (-) CIRCUIT OPEN FROM INSTRUMENT CLUSTER TO PCM

With the ignition off.

Disconnect the Instrument Cluster C1 harness connector.

Note: Check connectors — Clean/repair as necessary.
Measure the resistance of the CAN C Bus (-) circuit from the Instru-
ment Cluster C1 harness connector to the PCM C4 harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Repair the CAN C Bus (+) circuit for an open between the

PCM C4 harness and the Instrument Cluster C1 harness
connector.

Perform BODY VERIFICATION TEST.

No

>> Repair the CAN C Bus (-) circuit for an open between the

PCM C4 harness and the Instrument Cluster C1 harness
connector.

Perform BODY VERIFICATION TEST.

8J - 26

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

ZH

NO CAN COMMUNICATIONS WITH PCM (CONTINUED)

12.

INTERMITTENT WIRING AND CONNECTORS

The conditions necessary to set this DTC are not present at this time.

Note: Check connectors — Clean/repair as necessary. Poor pin to terminal connections can set DTCs.

Note: Check for any Technical Service Bulletins that may apply.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the
wires while checking for shorts and/or open circuits.

Were there any problems found?

Yes

>> Repair as necessary.

Perform POWERTRAIN VERIFICATION TEST VER.

No

>> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for

a possible intermittent condition.

ZH

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 27

NO CAN COMMUNICATIONS WITH CAB

8J - 28

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

ZH