Eco mode system
Wiring Diagram





Ecu diagnosis information
Basic inspectionIllumination control switch signal circuit
Diagnosis procedure
Regarding wiring diagram information, refer to mwi-28, "wiring diagram".
1.Check combination meter input signal
Turn ignition switch on.
Check voltage between the following terminals of the illumination
control switch.
Is the inspection result normal?
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B1428 Seat belt buckle switch LH
Description
DTC B1428 SEAT BELT BUCKLE SWITCH LH
The air bag diagnosis sensor unit monitors the seat belt buckle switch LH
status. If the control unit detects an
open or short condition in the circuit, it will set the DTC.
PART LOCATION
Refer to SRC-5, "Component Parts Location".
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Removal and installation
EPS control unit
Exploded View
Steering column assembly
EPS control unit
Bracket plate
Front
Removal and Installation
REMOVAL
CAUTION:
Disconnect battery negative terminal before starting
operations.
Do not shock EPS control unit, e.g. drop or hit.
Do not ...