Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the instrument cluster circuit description and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 | Start the engine and allow to reach operating temperature. Does the temperature gauge operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Are the actual engine coolant temperature and the indicated coolant temperature within the specified value of each other? | 17°C (30°F) | Go to Step 7 | Go to Step 4 |
4 |
Does the temperature gauge indicate the specified values after each adjustment of the tester? | 37.8°C (100°F) 126.7°C (260°F) | Go to Step 9 | Go to Step 5 |
5 | With the tester at 49.5 ohms, does the temperature gauge indicate a temperature significantly below the specified value? | 126.7°C (260°F) | Go to Step 6 | Go to Step 10 |
6 |
Is continuity present? | Go to Step 10 | Go to Step 8 | |
7 | The temperature gauge functions properly. Inspect the engine cooling system for operating conditions. Refer to Engine Overheating or to Engine Fails To Reach Normal Operating Temperature in Engine Cooling. Is the repair complete? | -- | Go to Step 11 | Go to Step 3 |
8 | Repair the high resistance in CKT 35 (DK GRN) between the instrument cluster and the engine coolant temperature gauge sensor. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 11 | Go to Step 3 |
9 | Replace the engine coolant temperature gauge sensor. Refer to Engine Coolant Temperature Sensor Replacement in Engine Cooling. Is the repair complete? | -- | Go to Step 11 | Go to Step 3 |
10 | Replace the instrument cluster. Refer to Instrument Cluster Replacement . Is the repair complete? | -- | Go to Step 11 | Go to Step 3 |
11 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
