Component Testing

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

Ignition OFF.
Disconnect a cooling fan relay.
Test for 70 - 110 Ω between terminals 85 and 86.
- If less than 70 Ω or greater than 110 Ω
  Replace the cooling fan relay.
- If between 70 - 110 Ω
Test for infinite resistance between following terminals:
- 30 and 86
- 30 and 87
- 30 and 85
- 85 and 87
  - If less than infinite resistance
    Replace the cooling fan relay.
  - If infinite resistance
Install a 20 A fused jumper wire between relay terminal 86 and 12 V.
Install a jumper wire between relay terminal 85 and ground.
Test for less than 2 Ω between terminals 30 and 87.
- If 2 Ω or greater
  Replace the cooling fan relay.
- If less than 2 Ω
All OK.