For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you peform the Instrument Cluster System Check? | -- | Go to Step 2 | Go to Instrument Cluster System Check
2 |

1. Disconnect the engine coolant temperature (ECT) sensor connector.
2. Turn the ignition switch to the ON position.

Does the ECT gauge indicate C?

--

Go to Step 3

Go to Step 4

3 | Replace the ECT sensor unit. Refer to Engine Coolant Temperature Sensor Replacement . Is the repair complete? | -- | Go to Instrument Cluster System Check | --
4 | Test for an open using a J 39200 in the YEL/GRN wire between the instrument cluster assembly C4 cavity 1 and the ECT sensor. Does the wire have an open? | -- | Go to Step 5 | Go to Step 6
5 | Repair the open in the YEL/GRN wire between the instrument cluster assembly C4 cavity 1 and the ECT sensor. Refer to Wiring Repairs . Is the repair complete? | -- | Go to Instrument Cluster System Check | --
6 | Test for a short using a J 39200 in the BRN wire between the instrument cluster assembly C4 cavity 2 and G105. Does the wire have an short in it? | -- | Go to Step 7 | Go to Step 8
7 | Repair the short in the BRN wire between the instrument cluster assembly C4 cavity 2 and G105. Refer to Wiring Repairs . Is the repair complete? | -- | Go to Instrument Cluster System Check | --
8 | Inspect the instrument cluster assembly printed circuit for damage. Is the printed circuit damaged? | -- | Go to Step 9 | Go to Step 10
9 | Replace the printed circuit. Refer to Printed Instrument Cluster Circuit Replacement . Is the repair complete? | -- | Go to Instrument Cluster System Check | --
10 | Replace the ECT gauge. Refer to Engine Coolant Temperature Gage Replacement . Is the repair complete? | -- | Go to Instrument Cluster System Check | --