Inspection Procedure 22: Condenser fan relay system <Except short wheel base (R.H. drive vehicles)>

OPERATION

• The A/C condenser fan relay is controlled by turning on and off the power transistor in the engine-ECU.
  

PROBABLE CAUSES

• Failed A/C condenser fan relay
  
• Failed condenser fan motor
  
• Damaged harness (Open or short circuit between engine-ECU and A/C condenser fan relay, Open circuit between condenser fan motor and earth, A/C condenser fan relay and J/B, condenser fan relay and relay box, and open circuit between A/C condenser fan relay and condenser fan motor)
  
• Damaged connector (condenser fan relay connector, condenser fan motor connector, Engine-ECU connector)
  
• Failed engine-ECU
  

	Go to Step 2.

	Check condenser fan system (Refer to GROUP 55 - Troubleshooting - Check Chart for Trouble Symptoms ).

	Replace the engine-ECU. When the engine-ECU is replaced, write the chassis number (Refer to GROUP 00 - Precautions Before Service - How to Perform Chassis Number Writing ). After replacing the engine-ECU, register the injector identification code and learn fuel injection (Refer to GROUP 00 - Precautions Before Service - What The Common Rail Engine Learns ).

	Repair or replace.