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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 WASH MESSAGE NOT OPERATING PROPERLY

TEST ACTION APPLICABILITY
1
NOTE: Ensure that the Washer Fluid reservoir is filled and the Fluid Level Switch connector is properly connected before proceeding with this test.
Turn the ignition on and wait approximately 1 minute.Is the "Lowash" message always displayed?Yes --> Go To 2No --> Go To 3		 All
2 Turn the ignition off.
Disconnect the Washer Fluid Level Switch harness connector.
Turn the ignition on and wait approximately 1 minute.
Does the VF display "LOWASH"?
Yes --> Repair the Low Washer Fluid Sense circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1  .
No --> Replace the Washer Fluid Level Switch in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1  .		 All
3 Turn the ignition off.
Disconnect the Washer Fluid Level Switch harness connector.
Connect a jumper wire between cavity 1 and cavity 2.
Turn the ignition on and wait approximately 1 minute.
Does the VF display "LOWASH"?
Yes --> Replace the Washer Fluid Level Switch in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1  .
No --> Go To 4		 All
4 Turn the ignition off.
Disconnect the Washer Fluid Level Switch harness connector.
Measure the resistance between ground and the Washer Fluid Level Switch Ground circuit.
Is the resistance below 5.0 ohms?
Yes --> Go To 5
No --> Repair the Washer Fluid Level Switch Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1  .		 All
5 Turn the ignition off.
Disconnect the Washer Fluid Level Switch harness connector.
Disconnect the Instrument Cluster harness connector.
Measure the resistance of the Low Washer Fluid Sense circuit.
Is the resistance below 5.0 ohms?
Yes --> Replace and configure the Instrument Cluster in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1  .
No --> Repair the Low Washer Fluid Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1  .		 All
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