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 > Occupant Classification System: Rear Occupant Classification Sensor LH Circuit Malfunction (B1782)
DESCRIPTION The rear occupant detection sensor LH circuit consists of the occupant classification ECU and the rear occupant detection sensor LH. DTC B1782 is set when a malfunction is detected in the rear occupant detection sensor LH circuit. DTC Code DTC Detection Condition Trouble Area B1782 One o ...