Diagnosis procedure
1.Check connector
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness for open circuit

Is the measurement value within the specification? Yes >> go to 3.
No >> repair the combination meter branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the combination meter. Refer to mwi-52, "combination meter : diagnosis procedure".
Is the inspection result normal? Yes (present error)>>replace the combination meter. Refer to mwi-77, "removal and installation".
Yes (past error)>>error was detected in the combination meter branch line.
No >> repair the power supply and the ground circuit.
Eps branch line circuit
Strg branch line circuitB1428 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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Wiring diagram
Navigation with bose
Wiring diagram
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Power supply and ground circuit
Bcm (body control system) (with intelligent key system)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-51, "Wiring Diagram".
1.CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link ...