Pinpoint Test X: The Instrument Cluster Is Inoperative: Testing
- X1 CHECK THE INSTRUMENT CLUSTER VOLTAGE SUPPLY
- Disconnect: Instrument Cluster C220.
- Key in ON position.
- Measure the voltage between the instrument cluster, harness side and ground as follows:
DIAGNOSIS PROCEDURE
| Connector-Pin |
Circuit |
| C220-1 |
1566 (RD/YE) |
| C220-3 |
483 (RD) |
| C220-5 |
295 (LB/PK) |
- Are the voltages greater than 10 volts?
- Yes
: GO to X2.
- No
: REPAIR the circuit in question. TEST the system for normal operation.
- X2 CHECK THE INSTRUMENT CLUSTER GROUND CIRCUITS
- Key in OFF position.
- Measure the resistance between the instrument cluster, harness side and ground as follows:
DIAGNOSIS PROCEDURE
| Connector-Pin |
Circuit |
| C220-2 |
1203 (BK/LB) |
| C220-4 |
1205 (BK) |
- Are the resistances less than 5 ohms?
- Yes
: GO to X3.
- No
: REPAIR the circuit in question. TEST the system for normal operation.
- X3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect the instrument cluster connector.
- Check for:
- corrosion
- pushed-out pins
- Connect the instrument cluster connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes
: INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
- No
: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.