Inspection Procedure

1. Remove the ECU-IG RH fuse 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 Connection	Condition	Specified Condition
   ECU-IG RH 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	Switch Condition	Specified Condition
   J28-8 (IG) - J28-11 (GND)	Engine switch on (IG)	11 to 14 V

NG: Go to step 3 

Fig 1: 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. 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: Go to next step 

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

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Condition	Switch Condition	Specified Condition
   RA-1 - Body ground	Engine switch on (IG)	11 to 14 V

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

Fig 3: Identifying Multiplex Tilt And Telescopic ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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