REMOVAL PROCEDURE 1. REMOVE FRONT DOOR SCUFF PLATE LH (a) for Double Cab: Click here (b) for CrewMax: Click here 2. REMOVE COWL SIDE TRIM BOARD LH Click here 3. REMOVE INSTRUMENT SIDE PANEL LH Click here 4. REMOVE LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY LH Click here 5. REMOVE INTERIOR ROOM LIGHT SWITCH ASSEMBLY 
(a) Using a screwdriver, detach the 2 claws and remove the interior room light switch assembly. HINT: Protective tape the screwdriver tip before use. |
Toyota Tundra Service Manual > Trailer Brake Control System: Terminals Of Ecu
TERMINALS OF ECU 1. CHECK TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY) (a) Disconnect the J172 trailer brake control ECU (brake control with bracket relay) connector and measure the voltage or resistance on the wire harness side. Text in Illustration *a Front view of wire harness con ...
