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

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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 master switch and mirror control switch.

Standard: 

Fig 2: Terminals Resistance Reference Chart (Mirror Master Switch)

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Fig 3: Terminals Resistance Reference Chart (Mirror Control Switch)

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NG: REPLACE OUTER MIRROR SWITCH 

Fig 4: Inspecting Mirror Master Switch And Mirror Control Switch

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OK: Go to next step. 

1. Disconnect the O3 switch and D6 ECU connectors.
2. Measure the resistance of the wire harness side connectors.

   Standard: 

   Fig 5: Terminals Resistance Reference Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE OUTER MIRROR SWITCH 

Fig 6: Checking Wire Harness (Outer Mirror Switch - Driver Side J/B ECU)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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