Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

Check headlights operation.
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.
Check harness and connector between TVIP ECU and light control switch.
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.