Inspection Procedure

1. Remove the Tl & TE fuse from the main body ECU RH (cowl side junction block RH)
2. Measure the resistance according to the value (s) to the table below

   Standard Resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   TI & TE fuse	Always	Below 1 Ω

NG: REPLACE FUSE 

OK: Go to next step 

1. Disconnect the J28 connector from the multiplex tilt and telescopic ECU
2. Measure the voltage according to the value (s) in the table below

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   J28-2 (+B) - Body ground	Always	11 to 14 V

NG: Go to step  4

Fig 1: Identifying Multiplex Tilt And Telescopic ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

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

   Standard Resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   J28-11 (GND) -Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Identifying Multiplex Tilt And Telescopic ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

1. Disconnect the RA connector from the main body ECU RH (cowl side junction block RH).
2. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Condition	Condition	Specified Condition
   J28-2 (+B) - RA-15	Always	Below 1 Ω
   J28-2 (+B) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - MAIN BODY ECU RH) 

Fig 3: Identifying Multiplex Tilt And Telescopic ECU And Main Body ECU Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH))