Wiper Switch: Testing and Inspection
Combination Switch (Wiper)INSPECTION
Inspect the continuity between each connector terminal.
If continuity is not as specified, replace the switch.
FRONT WIPER
1. Check with Subaru Select Monitor When the front wiper switch is operated, check the input signal using the Subaru Select Monitor.
1. Prepare the Subaru Select Monitor kit.
2. Turn the ignition switch to ON.
3. On <
4. Select the {Current Data Display & Save}.
5. Check the input signal when the front wiper switch is set to LO or HI. Is the input signal normal?
- YES -> Finish the diagnosis.
- No ->
1. Check the harness.
2. Check ACC input voltage of body integrated unit.
Connector & terminal
(B281. No. 5 (+) - Chassis ground (-):
3. Replace the body integrated unit.
2. Check the intermittent operation (inspection of the wiper switch alone)
1. Set the voltage meter between terminal No. 7 (+) and - No. 2 (-).
2. Connect the battery to connector. (Terminal No. 17 (+), terminal No. 2 & 16 (-))
3. Turn the front wiper switch to INT.
4. Connect the battery (+) to the terminal No. 16 for 5 seconds.
5. Connect the battery (-) to the terminal No. 16, and check the voltage between terminal No. 7 - No. 2 when performing the intermittent operation.
6. Perform step 1) to 5) when intermittent control switch is in MIN or MAX, and replace the switch if the operation is not as specified.
REAR WIPER
1. Check with Subaru Select Monitor
Step 1-4:
2. Check rear wiper motor circuit
