Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics

WIPER ARM PRESSURE CHECK
1. Run the wiper arms to the mid-wipe position.
2. Remove the wiper blades from the wiper arms.
3. Attach a scale to the end of the wiper arm and measure the force required to lift the wiper arm perpendicular to the windshield to normal working height (height with the blade attached).




4. Replace the wiper arm if the measurement is not within the specification.

Tip Pressure
7.5-9.5 Newtons (27-34 Ounces)

BLADE ELEMENT CHECK




1. Remove the wiper blades from the wiper arms.
2. Look down the length of the blade element.
3. Replace the wiper blade element if the rubber element which contacts the glass is not on the centerline of the blade +/-15°.
4. Install the wiper blades on the wiper arms.