P0483-36: Fan Performance - Signal frequency too low: Action
- Confirm if customer has been deep water wading
- Check for damage to or blockages in fan and fouling of fan cowling. Rectify as required
- Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check engine cooling fan circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Using the manufacturer approved diagnostic system clear all stored DTCs using the `Diagnosis Menu' tab and retest