On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT MAIN BODY ECU (ACC RELAY)  (a) Measure the resistance of the ACC relay circuit. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the main body ECU. |
Toyota Tundra Service Manual > Lighting System: Cargo Light Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) receives a cargo light information signal from the deck light switch assembly and door courtesy light switch, and illuminates the cargo light. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses and bulbs for circuits related to ...
