Diagnosis system (driver seat C/U)
U1000 CAN comm circuitSeat belt buckle switch signal circuit
Description
Transmits a seat belt buckle switch LH signal to the combination meter.
Component Function Check
1. CHECK COMBINATION METER INPUT SIGNAL
Start engine.
Monitor seat belt warning lamp while fastening and unfastening the
driver seat belt.
Diagnosis Procedure
Regarding Wiring ...
P1805 brake switch
Description
Brake switch signal is applied to the ECM via the stop lamp switch when the
brake pedal is depressed. This
signal is used mainly to decrease the engine speed when the vehicle is being
driver.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATI ...
M&A branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the combination meter for
damage, bend and loose connection
(unit side and connector side).
2.CHECK HARNESS FOR OPEN CI ...