Operation CHARM: Car repair manuals for everyone.

Internal Fault






Internal fault

Checking the function





Checking the rain sensor

Checking the function




- Ignition on
- Activate the rain sensor.

Hint: The wiper blades make a reference stroke to determine the cleanliness and condition of the windshield when the rain sensor is activated. The rain sensor is deactivated when the ignition is switched off. To reactivate the rain sensor with the ignition on, move the stalk to position "0" and then to intermittent wiping.

Spray water on the windshield where the rain sensor is positioned.
The wiper blades must now wipe the windshield clean.

Hint: In cars equipped with the rain sensor it replaces the intermittent function. One way of checking the function of the rain sensor is to twist the collar on the lever. This changes the sensitivity of the rain sensor. The windshield wiper should make one stroke. If the intermittent or high speed functions are activated it indicates that the rain sensor function is missing.

Continue - ANOTHER TEST

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ANOTHER TEST - Checking the rain sensor

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Checking the rain sensor




- Ignition off.
Check that the rain sensor is properly secured. Check that there is no dirt on the inside of the windshield.
Check that there are no stone chips or damage to the windshield where the rain sensor is positioned.
Remedy as necessary.

Other information:
- Rain sensor Service and Repair

Was a fault detected?

Yes - Verification

No - Replacing the rain sensor

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Replacing the rain sensor




- Ignition off.
If no other fault is found, try replacing the rain sensor.

Other information
- Rain sensor Service and Repair

Continue - Verification

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Verification




Verification

Note! After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on
- Activate the rain sensor.

Hint: The wiper blades make a reference stroke to determine the cleanliness and condition of the windshield when the rain sensor is activated. The rain sensor is deactivated when the ignition is switched off. To reactivate the rain sensor with the ignition on, move the lever to position 0 and then to intermittent wiping.

Spray water on the windshield where the rain sensor is positioned.
The wiper blades must now wipe the windshield clean.

Is the rain sensor functioning?

Yes - Verification completed

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - Checking the function

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