TROUBLESHOOTING GUIDE — Symptom: Additional (condenser) fan does not operate.
U-11flowchartIMPORTANT
Symptom: Additional (condenser) fan does not operate.
NOTE
If the magnetic clutch also does not operate, see "Magnetic clutch does not operate"; page U-9.
Normal operation of additional fan
The additional fan is supplied with battery voltage as shown:
1. A/C and blower motor switches are turned ON.
2. ECU receives signal that A/C and blower switches are ON and creates ground circuit.
3. A/C relay is magnetized and contact is closed.
4. Battery voltage is applied to additional fan and fan operates.
NOTE
The ECU also controls the additional fan and magnetic clutch operation depending on engine load. (Refer to Section F.)
Remedy
Additional fan remedy
- 1Measure the voltage at the terminal-wire(s) of the additional fan.
05U0UX-019
Additional-fan terminal voltages
(B/L)
Voltage12V
ActionNext, check wire (B)
(B/L)
Voltage0V
ActionRepair wire (B/L) (A/C relay—Additional fan)
(B)
Voltage12V
ActionRepair wire (B) (Additional fan—Body ground)
(B)
Voltage0V
ActionReplace additional fan