IG Power Source Circuit [08/2015 - 08/2017]: Procedure

1. Remove the ECU-IG No. 1 fuse from the main body ECU.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   ECU-IG No. 1 fuse	Always	Below 1 Ω

Result: 

NG 

REPLACE CHECK FOR SHORTS IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE 

Result: 

OK 

See step  2

1. Disconnect the H57 multiplex tilt and telescopic ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   H57-8 (IG) - Body ground	Ignition switch ON	11 to 14 V

Result: 

OK 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H57-11 (GND) - Body ground	Always	Below 1 Ω

Result: 

OK 

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2017] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR