Chrysler Crossfire. Manual — part 223

NO COMMUNICATION FROM INSTRUMENT CLUSTER

ZH

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 17

NO COMMUNICATION FROM INSTRUMENT CLUSTER (CONTINUED)

When Monitored and Set Condition

•

When Monitored: With the ignition on.

•

Set Condition: Serial Communication K1 failure between the A/C Heater Control Module and the Instrument
Cluster.

POSSIBLE CAUSES

SERIAL COMMUNICATION K1 CIRCUIT OPEN

INSTRUMENT CLUSTER

For a complete Instrument Cluster Circuit Diagram, (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - SCHE-
MATICS AND DIAGRAMS).

Diagnostic Test

1.

MEASURE THE RESISTANCE OF THE SERIAL COMMUNICATION K1 CIRCUIT

Turn the ignition off.

Disconnect the Instrument Cluster harness connector.

Disconnect the A/C Heater Control Module harness connector.

Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Serial Communication K1 circuit from
the Instrument Cluster harness connector to the A/C Heater Control
Module harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Replace the Instrument Cluster. (Refer to 8 - ELECTRI-

CAL/INSTRUMENT CLUSTER - REMOVAL).

Perform BODY VERIFICATION TEST.

No

>> Repair the Serial Communication K1 circuit for an open.

Perform BODY VERIFICATION TEST.

8J - 18

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

ZH

NO COMMUNICATION TO INSTRUMENT CLUSTER

ZH

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 19

NO COMMUNICATION TO INSTRUMENT CLUSTER (CONTINUED)

When Monitored and Set Condition

•

When Monitored: With the ignition on.

•

Set Condition: Serial Communication K2 failure between the A/C Heater Control Module and the Instrument
Cluster.

POSSIBLE CAUSES

SERIAL COMMUNICATION K2 CIRCUIT OPEN

INSTRUMENT CLUSTER

For a complete Instrument Cluster Circuit Diagram,(Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - SCHE-
MATICS AND DIAGRAMS).

Diagnostic Test

1.

MEASURE THE RESISTANCE OF THE SERIAL COMMUNICATION K2 CIRCUIT

Turn the ignition off.

Disconnect the Instrument Cluster harness connector.

Disconnect the A/C Heater Control Module harness connector.

Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Serial Communication K2 circuit from
the Instrument Cluster harness connector to the A/C Heater Control
Module harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Replace the Instrument Cluster. (Refer to 8 - ELECTRI-

CAL/INSTRUMENT CLUSTER - REMOVAL).

Perform BODY VERIFICATION TEST.

No

>> Repair the Serial Communication K2 circuit for an open.

Perform BODY VERIFICATION TEST.

8J - 20

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

ZH