Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Wiper/Washer Connector End Views

DEFINITION: The headlamp washers are inoperative. The windshield washers and headlamps operate normally. The CHECK WASHER FLUID message is not displayed.

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn the ignition ON, with the engine OFF.
2. Turn the headlamps ON.
3. Depress the windshield washer switch 4 times.

Do the headlamp washers operate after the fourth press of the windshield washer switch?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

1. Install a scan tool.
2. With a scan tool, enter Headlamp Washer controls by making the following selections:

•	Wiper/Washer Systems

•	Special Functions

•	Instrument Panel Module (IPM)

3. With the scan tool, command the Headlamp Washers ON.

Do the headlamp washers operate when they are commanded ON?

Go to Step 4

Go to Step 5

1. Install a scan tool.
2. With a scan tool, observe the Headlamp Washer Switch parameter in the Wipers/Washer Systems, Instrument Panel Module Input data list.
3. Press the windshield washed switch.

Does the Headlamp Washer Switch parameter display On?

Go to Step 15

Go to Step 9

1. Remove the headlamp washer fluid pump relay.
2. Connect a test lamp from the battery positive voltage circuit, the switch side of the headlamp washer relay connector to a good ground.

Does the test lamp illuminate?

Go to Step 6

Go to Step 16

Connect the test lamp from the battery positive voltage circuit, the coil side of the headlamp washer relay connector to a good ground.

Does the test lamp illuminate?

Go to Step 7

Go to Step 16

7

Connect a 10-amp fused jumper wire between the battery positive voltage circuit, the switch side of the relay connector and the headlamp washer control circuit of the relay connector.

Does the headlamp washer fluid pump operate?

Go to Step 8

Go to Step 11

1. Connect a test lamp between battery positive voltage and the headlamp washer relay control circuit of the relay connector.
2. With the scan tool, command the Headlamp Washers ON.

Does the test lamp illuminate?

Go to Step 13

Go to Step 10

Test the windshield wiper switch signal 2 circuit between the IPM and the windshield wiper/washer switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 15

Test the headlamp washer relay control circuit between the IPM and the headlamp washer fluid pump relay for the following conditions:

Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 15

Test the headlamp washer fluid pump control circuit between the relay and the headlamp washer fluid pump for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 12

Test the ground circuit of the windshield washer fluid pump for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 14

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

Did you find and correct the condition?

Go to Step 20

Go to Step 17

Inspect for poor connections at the harness connector of the headlamp washer fluid pump. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 18

Inspect for poor connections at the harness connector of the IPM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 19

Repair the short to ground or open in the appropriate battery positive voltage circuit of the headlamp washer relay. Refer to Circuit Testing and Wiring Repairs .

Did you complete the repair?

Go to Step 20

--

Replace the headlamp washer relay. Refer to Relay Replacement .

Did you complete the replacement?

Go to Step 20

--

Replace the headlamp washer fluid pump. Refer to Headlamp Washer Pump Replacement .

Did you complete the replacement?

Go to Step 20

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

Did you complete the replacement?

Go to Step 20

--

1. Reconnect all previous disconnected components.
2. Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2