For 1990-2009 cars

### Buick and Pontiac with U50/U2F

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

1. Turn the ignition switch to the ON position.
2. Connect a scan tool.
3. Select the Body Control Module Low washer fluid input menu.

Does the low washer fluid input data match the warning message?

--

Go to Step 4

Go to Step 3

3 | Replace the instrument panel (IP) cluster. Refer to one of the following procedures:

• | Instrument Cluster Replacement

• | Instrument Cluster Replacement

• | Instrument Cluster Replacement

Is the replacement complete?

--

Go to Instrument Cluster System Check

--

4 | Inspect CKT 99 (BLK/WHT) for a short to ground. Is the wiring OK? | -- | Go to Step 5 | Go to Step 6
5 | Inspect the washer fluid level switch for a short to ground. Is the switch OK? | -- | Go to Step 3 | Go to Step 7
6 | Repair the short to ground in CKT 99 (BLK/WHT). Is the repair complete? | -- | Go to Instrument Cluster System Check | --
7 | Replace the washer fluid level switch. Refer to Windshield Washer Solvent Container Replacement in Wiper/Washer Systems. Is the replacement complete? | -- | Go to Instrument Cluster System Check | --