Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information EFI-514

EFI-514 Engine cooling fan (FC) low-speed, signal

Condition




Diagnostic trouble code (DTC) EFI-514 is stored if there is a short-circuit to ground/supply voltage or open-circuit in the engine cooling fan (FC) signal cable.

Substitute value
- idle air trim disabled
- fuel trim disabled
- conditions for fuel shut-off changed
- if engine coolant temperature exceeds 102°C the engine cooling fan (FC) starts operating at high-speed.

Possible source

Signal too low:
- short-circuit to ground in signal cable (A7)
- defective engine cooling fan (FC) relay

Signal too high:
- short-circuit to ground in signal cable
- defective engine cooling fan (FC) relay.

Signal missing:
- open-circuit in signal cable
- open-circuit in engine cooling fan (FC) relay power cable
- short-circuit to ground in signal cable (A22)
- contact resistance in terminals
- defective engine cooling fan (FC) relay.

Fault symptom[s]
- may result in poor performance.