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.

Inspect door courtesy switches (see INTERIOR LIGHT SYSTEM (EXCEPT DOUBLE CAB) ).
1. NG : Replace door courtesy switch.
2. OK : Go to next step.
Check voltage between terminals DSWD and CTY of TVIP ECU and body ground.
PREPARATION:

Disconnect the T12 TVIP ECU connector.

CHECK:

Check the voltage between the T12 TVIP ECU wire harness side connector and body ground.

Fig 1: Checking Voltage Between Terminals DSWD And CTY Of TVIP ECU And Body Ground
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Fig 2: Terminals DSWD And CTY Of TVIP ECU And Body Ground Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG : Repair or replace harness and connector.
2. OK : Replace TVIP ECU.