The numbers below refer to the step numbers on the diagnostic table.
Tests the operation of the headlamp washer pump relay and circuits. If the test lamp illuminates for a few seconds the washer pump is faulty.
Tests the battery positive voltage supply circuit to the headlamp washer pump relay.
Tests the washer pump control circuit to the headlamp washer pump relay.
Tests the front park lamp voltage supply circuit to the headlamp washer pump relay.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Wiper/Washer Schematics Connector End View Reference: Wiper/Washer Connector End Views DEFINITION: The headlamp washers are inoperative, the windshield washers, and park lamps operate normal. | |||
1 | Did you review the Headlamp Washer System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Do the headlamp washers operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
Does the test lamp illuminate? | Go to Step 14 | Go to Step 4 | |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 10 | |
Does the test lamp illuminate? | Go to Step 6 | Go to Step 11 | |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 12 | |
7 | Connect a test lamp from battery positive voltage to the headlamp washer pump relay ground circuit terminal. Does the test lamp illuminate? | Go to Step 8 | Go to Step 13 |
8 | Test the headlamp washer pump supply circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 9 |
9 | Test the headlamp washer pump ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 16 |
10 | Repair the open or short to ground in the headlamp washer pump relay battery positive voltage supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 18 | -- |
11 | Repair the headlamp washer relay control circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 18 | -- |
12 | Repair the front park lamp voltage supply circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | -- |
13 | Repair the headlamp washer pump relay ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 18 | -- |
14 | Inspect for poor connections at the headlamp washer pump. 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 18 | Go to Step 15 |
15 | Replace the headlamp washer pump. Is the repair complete? | Go to Step 18 | -- |
16 | Inspect for poor connections at the headlamp washer pump relay. 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 18 | Go to Step 17 |
17 | Replace the headlamp washer pump relay. Is the repair complete? | Go to Step 18 | -- |
18 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |