Pinpoint Test A: No Communication With The Instrument Cluster

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.

A1 CHECK THE INSTRUMENT CLUSTER VOLTAGE SUPPLY

Key in OFF position.
Disconnect: Instrument Cluster C220.
Key in ON position.

Measure the voltage between the instrument cluster, harness side and ground as follows:

INSTRUMENT CLUSTER CONNECTOR-PIN REFERENCE

Instrument Cluster Connector-Pin	Circuit
C220-20	CBP20 (YE/VT)
C220-6	CBP23 (BN/YE)
C220-19	SBP07 (WH/RD)

Are the voltages greater than 10 volts?

Yes : GO to A2.

No : VERIFY the SJB fuses 13 (7.5A), 23 (7.5A), and 27 (7.5A) are OK. If OK, REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

A2 CHECK THE INSTRUMENT CLUSTER GROUND CIRCUITS

Key in OFF position.

Measure the resistance between the instrument cluster, harness side and ground as follows:

INSTRUMENT CLUSTER CONNECTOR-PIN REFERENCE

Instrument Cluster Connector-Pin	Circuit
C220-9	GD116 (BK/VT)
C220-10	GD116 (BK/VT)

Are the resistances less than 5 ohms?

Yes : REFER to MODULE COMMUNICATIONS NETWORK to continue diagnosis of the communication network.

No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.