TERMINALS OF ECU ![]() 1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly. Click here (b) Connect the driver side junction block assembly connectors. (c) Measure the voltage and resistance according to the value(s) in the table below.
(d) Install the main body ECU (multiplex network body ECU) to the driver side junction block assembly. Click here (e) Measure the voltage and check for pulses according to the value(s) in the table below.
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Toyota Tundra Service Manual > Air Conditioning System(for Manual Air Conditioning System): BUS IC Communication Malfunction (B1497/97)
DESCRIPTION The air conditioning harness connects the air conditioning amplifier and each servo motor. The air conditioning amplifier supplies power and sends operation instructions to each servo motor through the air conditioning harness. Each servo motor sends the damper position information to th ...