Component Testing
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Relay Test
- Ignition OFF, disconnect the KR2 Headlamp Washer Pump Relay.
- Test for 60-200 Ω between terminals 85 and 86.
- If less than 60 or greater than 200
Replace the KR2 Headlamp Washer Pump Relay.
- If between 60-200 Ω
- If less than 60 or greater than 200
- Test for infinite resistance between the terminals listed below:
- 30 and 86
- 30 and 87
- 30 and 85
- 85 and 87
- If less than infinite resistance
Replace the KR2 Headlamp Washer Pump Relay.
- If infinite resistance
- Install a 10 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground.
- Test for less than 10 Ω between terminals 30 and 87.
- If 10 Ω or greater
Replace the KR2 Headlamp Washer Pump Relay.
- If less than 10 Ω
- If 10 Ω or greater
- All OK.