GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Wiper/Washer Connector End Views

DEFINITION: The check washer fluid message is always displayed or does not display with low washer fluid.

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Verify the fault is present.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the washer fluid level switch connector.
  3. Turn ON the ignition.

Is the check washer fluid message/indicator displayed on the driver information center (DIC)/instrument panel cluster (IPC)?

Go to Step 6

Go to Step 4

4

  1. Turn OFF the ignition.
  2. Connect a fused jumper wire from the washer fluid level switch signal circuit terminal in the washer fluid level switch connector to ground.
  3. Turn ON the ignition.

Is the check washer fluid message displayed on the DIC?

Go to Step 5

Go to Step 7

5

  1. Turn OFF the ignition.
  2. Connect a fused jumper wire across the washer fluid level switch harness connector terminals.
  3. Turn ON the ignition.

Is the check washer fluid message displayed on the DIC?

Go to Step 9

Go to Step 8

6

Test the washer fluid level switch signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 11

7

Test the washer fluid level switch signal circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 11

8

Test the washer fluid level switch ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 11

9

Inspect for poor connections at the washer fluid level switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 10

10

Replace the washer fluid level switch.

Is the repair complete?

Go to Step 13

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11

Inspect for poor connections at the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 12

12

Replace the IPC. Refer to Control Module References for replacement, setup, and programming.

Is the repair complete?

Go to Step 13

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13

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3