Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE - LOW COOLANT INDICATOR INOPERATIVE - DIESEL ONLY
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
Perform the Instrument Cluster Self Test before proceeding with this test. If the Indicator does not illuminate, replace the Cluster. Turn the ignition off.Disconnect the Low Coolant Switch harness connector.Connect a jumper wire between cavity 1 and cavity 2.Turn the ignition on and wait approximately 1 minute.With the DRBIII® in Inputs/Outputs, read the Low Coolant Switch state.Does the DRBIII® display "Closed"?Yes --> Replace the Low Coolant Switch in accordance with the Service Information.Perform BODY VERIFICATION TEST - VER 1 .No --> Go To 2 |
All |
| 2 | Turn the ignition off. Disconnect the Low Coolant Switch harness connector. Measure the resistance between ground and the Low Coolant Switch Ground circuit. Is the resistance above 5.0 ohms? Yes --> Repair the Low Coolant Switch Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 3 |
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| 3 | Turn the ignition off. Disconnect the Low Coolant Switch harness connector. Disconnect the Instrument Cluster harness connector. Measure the resistance of the Low Coolant Fluid Level Sense circuit. Is the resistance above 5.0 ohms? Yes --> Repair the Low Coolant Fluid Level Sense circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace and configure the Instrument Cluster in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . |
All |