Fault-Tracing Information
Fault-tracing information
Condition
- Diagnostic trouble codes (DTCs) missing or corrective action taken.
- The fault is permanent.
Possible source
The engine cooling fan does not operate at low speed:
- Open-circuit in power supply or ground lead.
- Open-circuit in signal cable, low-speed.
- Defective engine cooling fan relay or engine cooling fan (FC).
The engine cooling fan does not operate at high-speed:
- Open-circuit in high-speed signal cable
- Defective engine cooling fan relay or engine cooling fan (FC).