FLOWCHARTS — Flowchart No. 3: Magnetic clutch and condenser fan do not operate
G-17flowchartAD FAN fuse is 40A on K8 (V6), 20A on B6 (I4). Bracketed [ ] values throughout refer to the B6 engine. K8 uses condenser fan relays No.1 and No.2; B6 uses a single condenser fan relay.
TROUBLESHOOTING
Flowchart No. 3
Flowchart No.
Value3
Symptom
ValueMagnetic clutch and condenser fan do not operate
Related components
ValueFuse, A/C relay, ECM, heater control unit, thermoswitch, refrigerant pressure switch
System Operation
Signals from the fan switch and A/C switch are sent to the ECM.
The thermoswitch detects the evaporator temperature and opens or closes the circuit to keep the evaporator temperature at a certain level to protect against freezing.
To help liquefy the refrigerant, the condenser fan rotates and sends airflow to the condenser when the A/C compressor is on.
Step 1
- 1Check the following fuses.
- 2If the fuses are OK, go to Step 2.
- 3If a fuse is burnt, check for a short circuit in the wiring harness before replacing the fuse.
Step 1 — Fuses to check
REAR WIPER
Amperage (A)10
LocationFuse block
AD FAN
Amperage (A)40 [20]
LocationMain fuse block No.2 [Main fuse block No.1]
NOTE
[ ]: B6