Inspection Procedure

CHECK: 

Check that the headlights light up when the light control switch is turned to HEAD.

1. NG : Check  HEADLIGHT AND TAILLIGHT SYSTEM  . 
2. OK : Go to next step. 

PREPARATION: 

1. Disconnect the T11 TVIP ECU connector.
2. Disconnect the C15 light control switch connector.

CHECK: 

Check the continuity between the wire harness side connectors.

Fig 1: Checking Harness And Connector Between TVIP ECU And Light Control Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: 

Fig 2: TVIP ECU And Light Control Switch Table

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG : Repair or replace harness and connector. 
2. OK : Replace TVIP ECU.