Inspection Procedure

1. Connect the hand-held tester (with CAN VIM) to the DLC3.
2. Turn the ignition switch ON and press the hand-held tester main switch ON.
3. Select the items below in the DATA LIST, and read the displays on the hand-held tester.

   Driver side J/B ECU: 

   Fig 1: Driver Side J/B ECU -: Data List

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step. 

On the tester screen, each item should change between ON and OFF according to the above chart. 

NG: Go to step 2 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  ) 

1. Measure the resistance between each terminal of the mirror retract switch.

   Standard: 

   Fig 2: Terminals Resistance Reference Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 3: Inspecting Mirror Retract Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE OUTER MIRROR SWITCH 

OK: Go to next step. 

1. Disconnect the O4 switch and D6 ECU connectors.
2. Measure the resistance of the wire harness side connectors.

Standard: 

Fig 4: Terminals Resistance Reference Chart

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 5: Checking Wire Harness (Outer Mirror Switch - Driver Side J/B ECU)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  )