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Washers Inoperative

Step

Action

Yes

No

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Verify that the Washers Inoperative complaint is present.

Do the washers operate as described in the Description and Operation?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3
  1. Turn OFF the ignition.
  2. Disconnect the wiring harness plug of the windscreen washer fluid pump.
  3. Connect a test lamp from the windscreen washer pump control circuit to a good ground.
  4. Turn ON the ignition, with the engine OFF.
  5. Press the front washer switch.

Does the test lamp illuminate?

Go to Step 4

Go to Step 8

4
  1. Connect the test lamp from the rear window washer pump control circuit to a good ground.
  2. Turn ON the ignition, with the engine OFF.
  3. Press the rear washer switch.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

5
  1. Connect the test lamp between the windscreen washer pump control circuit and the rear window washer pump control circuit at the windscreen washer fluid pump.
  2. Turn ON the ignition, with the engine OFF.
  3. Press the front washer switch.

Does the test lamp illuminate?

Go to Step 9

Go to Step 6

6
  1. Turn OFF the ignition.
  2. Disconnect the wiring harness plug of the windscreen wiper washer switch.
  3. With a test lamp connected to battery positive voltage, probe the ground circuit of the wiring harness plug.

Does the test lamp illuminate?

Go to Step 10

Go to Step 11

7
  1. Turn OFF the ignition.
  2. Disconnect the wiring harness plug of the windscreen wiper washer switch.
  3. Test the rear window washer pump control circuit for an open or a short to ground.

Did you find and correct the condition?

Go to Step 14

Go to Step 10

8
  1. Turn OFF the ignition.
  2. Disconnect the wiring harness plug of the windscreen wiper washer switch.
  3. Test the windscreen washer pump control circuit for an open or a short to ground.

Did you find and correct the condition?

Go to Step 14

Go to Step 10

9

Inspect for poor connections at the windscreen washer fluid pump.

Did you find and correct the condition?

Go to Step 14

Go to Step 12

10

Inspect for poor connections at the windscreen wiper washer switch.

Did you find and correct the condition?

Go to Step 14

Go to Step 13

11

Repair the ground circuit for an open or a high resistance.

Did you complete the repair?

Go to Step 14

-

12

Replace the windscreen washer fluid pump.

Did you complete the replacement?

Go to Step 14

-

13

Replace the windscreen wiper washer switch.

Did you complete the replacement?

Go to Step 14

-

14

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2

   


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