X37 - Check Fan Motor Operation
- Key "OFF".
- Constant Control Relay Module (CCRM) disconnected.
- Jumper Pin 3 to Pin 2 at CCRM vehicle harness connector.
- Does fan run?
Yes -- Go to X41. X41 - Check Fan Running Mode (Low)
No -- Go to X40. X40 - Measure Battery Voltage Supply at Fan -- Bypassing CCRM