GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Wiper/Washer Schematics

1

Did you review the Wiper/Washer System Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Wiper/Washer Systems

2

  1. Turn ON the ignition, with the engine OFF.
  2. Observe the low washer fluid indicator.

Does the low washer fluid indicator illuminate?

Go to Step 5

Go to Step 3

3

  1. Disconnect the windshield washer solvent level sensor connector.
  2. Connect a 3 amp fused jumper wire between the low washer fluid indicator control circuit and a good ground.
  3. Wait for 2 ½ minutes.

Does the low washer fluid indicator illuminate?

Go to Step 4

Go to Step 7

4

  1. Connect a 3 amp fused jumper wire between the low washer fluid indicator control circuit and the windshield washer solvent level sensor ground circuit.
  2. Wait for 2 ½ minutes.

Does the low washer fluid indicator illuminate?

Go to Step 8

Go to Step 10

5

  1. Disconnect the windshield washer solvent level sensor connector.
  2. Wait for 2 ½ minutes.

Did the low washer fluid indicator turn OFF?

Go to Step 8

Go to Step 6

6

Test the low washer fluid indicator signal circuit 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 13

Go to Step 9

7

Test the low washer fluid indicator signal circuit for an open or high resistance. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs or Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 9

8

Inspect for a poor connection at the windshield washer solvent level sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 11

9

Inspect for a poor connection at the IPC connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 12

10

Repair the open or high resistance in the low washer fluid indicator ground circuit. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs or Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

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11

Replace the windshield washer solvent level sensor. Refer to Windshield Washer Solvent Level Switch Replacement .

Did you complete the replacement?

Go to Step 13

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12

Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges, and Console.

Did you complete the replacement?

Go to Step 13

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13

Operate the windshield wiper/washer system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3