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 ...
