Electro Chromic Mirror System: Inspection

1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 4.
2. Connect the positive (+) lead from the voltmeter to terminal 2 and the negative (-) lead to terminal 3.
   Fig 1: Inspecting Electro Chromic Inner Mirror Operation

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Attach a black colored tape to forward sensor to prevent it from sensing.
4. When the mode is turned to AUTO, check that indicator light lights up.
5. Light up the mirror with an electric light, and check that there is battery positive voltage and mirror surface changes "bright" to "dark".

If operation is not as specified, replace the inner mirror.

Disconnect the connector from the mirror and inspect the connector on the wire harness side, as shown.

Fig 2: Inspecting The Connector On The Wire Harness Side

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If circuit is not as specified, inspect the circuits connected to other parts.

1. Disconnect the outer mirror connector.
   Fig 3: Inspecting Electro Chromic Outer Mirror Operation (W/O Driving Position Memory)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the positive (+) lead from the dry cell battery to terminal 2 and the negative (-) lead to terminal 1, then check that the mirror surface changes to "dark".
3. Check the mirror turns to "bright" after disconnecting the battery.

If operation is not as specified, replace the mirror assembly.

1. Disconnect the outer mirror connector.
   Fig 4: Inspecting Electro Chromic Outer Mirror Operation (W/ Driving Position Memory)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the positive (+) lead from the dry cell battery to terminal 5 and the negative (-) lead to terminal 4, then check that the mirror surface changes to "dark".
3. Check the mirror turns to "bright" after disconnecting the battery.

If operation is not as specified, replace the mirror assembly.