For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the engine cooling diagnostic system check? | -- | Go to Step 2 | Go to Diagnostic System Check
2 | Disconnect the engine coolant level indicator module. Does the LOW COOLANT LEVEL message turn off? | -- | Go to Step 3 | Go to Step 4
3 | Replace the engine coolant level indicator module. Refer to Coolant Level Module Replacement . Did you complete the replacement? | -- | Go to Step 6 | --
4 | Test the signal circuit of the engine coolant level indicator switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 6 | Go to Step 5
5 | Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges, and Console. Important: Perform the set up procedure for the IP. Did you complete the replacement and the set up procedure? | -- | Go to Step 6 | --
6 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2