Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics | |||
1 | Did you review the Instrument Panel, Gages and Console Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 | Verify that the engine coolant temperature gauge is inaccurate or inoperative. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the temperature gauge indicate cold? | Go to Step 4 | Go to Step 5 |
4 | Repair the wire. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 12 | -- |
5 | Connect a fused jumper wire from cavity 3 of the connector to ground. Does the temperature gauge indicate hot? | Go to Step 6 | Go to Step 7 |
6 | Replace the engine coolant temperature (ECT) sensor. Refer to Engine Coolant Temperature Sensor Replacement in Engine Controls. Is the repair complete? | Go to Step 12 | -- |
7 | Test the BRN wire between the instrument cluster assembly and G105 for a short to ground. Is a short condition present? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 8 |
8 | Test the ECT signal circuit between the instrument cluster assembly and the engine coolant temperature sensor for an open. Is an open condition present? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 9 |
9 | Inspect the instrument cluster assembly printed circuit for any damage. Is the printed circuit damaged? | Go to Step 10 | Go to Step 11 |
10 | Replace the printed circuit. Refer to Printed Instrument Cluster Circuit Replacement . Is the replacement complete? | Go to Step 12 | -- |
11 | Replace the ECT gage. Refer to Engine Coolant Temperature Gage Replacement . Is the repair complete? | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. did you correct the condition? | System OK | Go to Step 3 |
