Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Operate the engine and compare the actual engine coolant temperature with the temperature indicated by the instrument cluster temperature gauge. Is the engine coolant temperature and the indicated coolant temperature within the specified value of each other? | -1°C (30°F) | Go to Step 2 | Go to Step 3 |
2 | This indicates that the temperature gauge is functioning properly. Check the engine cooling system operation if appropriate. Has the condition been resolved? | -- | System OK | -- |
3 |
Does the temperature gauge indicate hot? | -- | Go to Step 6 | Go to Step 4 |
4 |
Does the DMM Indicate continuity? | -- | Go to Step 9 | Go to Step 5 |
5 | Locate and repair the open in CKT 135 (DK GRN) between the engine coolant temperature sensor and the instrument cluster. Is the repair complete? | -- | System OK | -- |
6 | Is the engine a gasoline engine? | -- | Go to Step 7 | Go to Step 8 |
7 | Replace the engine coolant temperature sensor. Refer to Engine Coolant Temperature Sensor Replacement . Is the repair complete? | -- | System OK | -- |
8 | Replace the engine coolant temperature sensor on the 7.2L diesel. Refer to Engine Coolant Temperature Sensor Replacement . Is the repair complete? | -- | System OK | -- |
9 | Replace the IP cluster. Refer to Instrument Cluster Replacement . Is the repair complete? | -- | System OK | -- |
