Wipers/Washers - Washer Fluid Level Sensor Diagnostics
NUMBER: 12-134-12DATE: 07/12/12
APPLICABILITY:
2010MY and Later Legacy & Outback
2012MY Impreza 2006MY and later Tribeca
SUBJECT:
Washer Fluid Level Sensor Diagnostics
INTRODUCTION
The purpose of this Service Bulletin is to explain the inspection, diagnosis and replacement procedures for the washer fluid level sensor.
SERVICE PROCEDURE / INFORMATION
1. Release the retaining clips and lower the L/F splash guard to gain access to the washer fluid tank and fluid level sensor assembly.
2. Check for evidence of poor contact of the washer fluid level sensor wiring harness connector.
3. Does the low washer fluid warning light illuminate after draining the washer fluid? If YES, does the low washer fluid warning light go off after refilling the washer fluid?
^ YES --> Fluid level sensor operation is normal.
^ NO --> Proceed to step 4.
4. Remove the wiring harness connector from washer fluid level sensor then measure the voltage of the vehicle-side connector using a DVOM (digital volt / ohm meter).
Is the voltage approx. 8.5 V or more?
^ YES --> Proceed to step 5.
^ NO --> Check the harness carefully and verify the I/O (input / output) signals to the combination meter and / or integrated unit as specified in the appropriate Service Manual. If harness and signal checks are all within specification, combination meter and / or integrated unit replacement may be necessary.
5. Does the washer fluid indicator in the combination meter illuminate if you connect the terminals of the washer fluid level sensor wiring harness connector together?
^ YES --> Proceed to step 6.
^ NO --> Check the harness carefully and verify the I/O signals to the combination meter and / or integrated unit as specified in the appropriate Service Manual. If harness and signal checks are all within specification, combination meter and / or integrated unit replacement may be necessary.
6. Using a DVOM, measure the resistance of the washer fluid level sensor as shown.
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