Inspection Procedure

1. Remove the ECU-IG RH fuse from the cowl side J/B RH.
2. Check the continuity of the ECU-IG RH fuse.

   OK: 

   Continuity 

NG: REPLACE FUSE 

OK: Go to next step 

1. Disconnect the K27 connector from the multiplex tilt & telescopic ECU.
2. Measure the voltage according to the value(s) in the table below.

   Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester connection (Terminal No.)	Condition	Specified value
   IG (K27-8) - GND (K27-11)	Engine switch on (IG)	10 to 14 V

Fig 1: Identifying K27 Multiplex Tilt And Telescopic ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

NG: Go to next step 

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

   Resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester connection (Terminal No.)	Condition	Specified value
   GND (K27-11) - Body ground	Always	Below 1 Ω

Fig 2: Identifying K27 Multiplex Tilt And Telescopic ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

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

   Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester condition	Condition	Specified value
   DA-1 - Body ground	Engine switch on (IG)	10 to 14 V

Fig 3: Identifying DA Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - COWL SIDE J/B RH) 

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (COWL SIDE J/B RH - BATTERY)