Inspection Procedure

Fig 1: Checking Harness And Connector (Infrared Ray Sensor - Air Conditioning Amplifier)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the X13 infrared ray sensor connector.
2. Disconnect the L76 air conditioning amplifier connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   INFRARED RAY SENSOR - AIR CONDITIONING AMPLIFIER
   
   

   Tester Connection	Condition	Specified Condition
   X13-3(LIN)-L76-28 (LIN1)	Always	Below 1 Ω
   X13-3 (LIN) -Body ground	Always	10 kΩ or higher
   L76-28(LIN1)-Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Replace the infrared ray sensor with a new or properly functioning one (see REMOVAL  ).
2. Operate the infrared ray sensor to check that it functions properly.

   OK: Infrared ray sensor function operates normally. 

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   Infrared ray sensor malfunctions	A
   Infrared ray sensor functions properly	B

B: END (INFRARED RAY SENSOR IS FAULTY) 

A: REPLACE AIR CONDITIONING AMPLIFIER (See  REMOVAL   )