Inspection Procedure

HINT:

Start the engine before inspection. Check the P-IG relay 1 or battery if the smart access system with push-button start does not start.

1. INSPECT FUSE (P-IG1-1) 
   1. Remove the P-IG 1-1 fuse from the passenger side junction block.
   2. Measure the resistance of the fuse.

      Standard resistance 

      FUSE (P-IG1-1)
      
      

      Tester Connection	Condition	Specified Condition
      P-IG1-1 fuse	Always	Below 1 Ω

   NG: REPLACE FUSE 

   OK: GO TO NEXT STEP 

2. CHECK AIR CONDITIONING AMPLIFIER (IG+ VOLTAGE) 
   Fig 1: Checking Conditioning Amplifier (IG+ Voltage)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Remove the air conditioning amplifier with its connectors still connected (see REMOVAL  ).
   2. Turn the engine switch on (IG).
   3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      AIR CONDITIONING AMPLIFIER (IG+ VOLTAGE)
      
      

      Tester Connection	Switch Condition	Specified Condition
      L76-5 (IG+) - L76-1 (GND)	Engine switch on (IG)	11 to 14 V
      L76-5 (IG+) - L76-2 (FGND)	Engine switch on (IG)	11 to 14 V
      L76-5 (IG+) - L77-6 (RGND)	Engine switch on (IG)	11 to 14 V

   OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 

   NG: GO TO NEXT STEP 

3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND) 
   Fig 2: Checking Harness And Connector (Air Conditioning Amplifier - Battery And Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the L76 and L77 air conditioning amplifier connectors.
   2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND VOLTAGE
      
      

      Tester Connection	Switch Condition	Specified Condition
      L76-5 (IG+) - Body ground	Engine switch off	Below 1 V
      	Engine switch on (IG)	11 to 14 V

   3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND RESISTANCE
      
      

      Tester Connection	Condition	Specified Condition
      L76-1 (GND) - Body ground	Always	Below 1 Ω
      L76-2 (FGND) - Body ground	Always	Below 1 Ω
      L77-6 (RGND) - Body ground	Always	Below 1 Ω

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   )