Motor Will Keep Running With Switch In Off Position.
- Check wiper motor wiring harness for shorts between the low speed motor feed terminal 2 or high speed motor feed terminal 1 and battery or ignition.
- Check for faulty wiper ON/OFF or HI/LO relay.
- Check circuit from ON/OFF relay terminal C to HI/LO relay terminal B for short to battery or ignition.
- Disconnect the C3 bone 12-way connector from the BCM. Check circuit from terminal 4 of C3 bone 12-way connector to terminal C of the ON/OFF wiper relay for short to ground.
- Check circuit from terminal 3 of C2 bone 24-way connector to Pin 4 of the wiper motor harness connector for an open. If open circuit, repair as necessary.
- Using a voltmeter, connect positive lead to terminal 8 of the C2 black 24-way connector. Connect negative lead to ground. If voltmeter reads greater than 0 volts, check wiper switch and wiring.
- Using a voltmeter, connect positive lead to terminal 8 of the C3 black 12-way connector.
- If voltmeter reads 10 to 15 volts, check the circuit for short to battery or ignition.
- If the voltmeter reads 0 volts, replace the BCM.