1A
A/C Condenser Fan Control System Check
Wiring Diagram
1. A/C compressor 5. A/C condenser fan relay 9. Ignition switch
2. ECM 6. A/C compressor relay *: RH steering vehicle
3. Blower fan motor 7. “A/C” fuse     
4. A/C condenser fan motor 8. “IG2 SIG” fuse     
Troubleshooting
Step Action YES NO
1
Check A/C condenser fan operation
Is A/C condenser fan started when A/C and blower fan switch turned ON while engine running?
A/C condenser fan control system is in good condition.
Go to Step 2.
2
Fuse check
1) Turn ignition switch OFF.
2) Check for fuse blown at “A/C” fuse in relay box.
Is “A/C” fuse in good condition?
Go to Step 3.
Replace “A/C” fuse and check for short.
3
Check wire harness
1) Disconnect A/C condenser fan connector.
2) With engine running, check voltage between “RED/BLU” wire terminal of A/C condenser fan connector and vehicle body ground when A/C and blower fan switch turned ON.
Is voltage 10 – 14 V?
“BLK” wire circuit open. If wire is OK, check A/C condenser fan motor referring to Condenser Cooling Fan Assembly On-Vehicle Inspection (M13A Model) .
Go to Step 4.
4
Check A/C condenser fan relay circuit
1) Remove A/C condenser fan relay from relay box.
2) Turn ignition switch ON, check voltage between “LT GRN” and “RED” wire terminal of A/C condenser fan relay connector and vehicle body ground.
Is voltage 10 – 14 V?
Go to Step 5.
“LT GRN” or “RED” wire circuit open.
5
Check A/C condenser fan control signal
1) Install A/C condenser fan relay to relay box with ignition switch OFF.
2) Turn ignition switch ON, check voltage between “E114-18” terminal of ECM connector and vehicle body ground.
Is voltage 10 – 14 V?
Go to Step 6.
“PNK/BLK” wire open or short.
6
Check A/C condenser fan control signal
1) Disconnect ECM connector with ignition switch OFF.
2) Using service wire, ground “E114-18” terminal of ECM connector.
3) Turn ignition switch ON.
Does A/C condenser fan operate?
Substitute a known-good ECM and recheck.
Go to Step 7.
7
1) Check A/C condenser fan relay referring to Main Relay, Fuel Pump Relay, A/C Compressor Relay and A/C Condenser Fan Control Relay Inspection:M13A .
Is it in good condition?
“RED/BLU” wire in open or high resistance circuit.
Replace A/C condenser fan relay.