Power Source Circuit

DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: Power Source Circuit
- Power Source Circuit

DESCRIPTION

This is the power circuit for the multiplex network body ECU.

Power is supplied to the multiplex network body ECU via the BECU circuit. The BECU circuit is used as the power source circuit of the ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT MULTIPLEX NETWORK BODY ECU (BATB, BECU - ALTB TERMINALS)

(a) Disconnect the instrument panel J/B (IA, ID) connectors.





(b) Measure the voltage according to the value(s) in the table below.

Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (BATB, BECU OR ALTB CIRCUIT)
OK -- Continue to next step.

2. INSPECT MULTIPLEX NETWORK BODY ECU (GND TERMINAL)

(a) Disconnect the instrument panel J/B (IF, IM) connectors.





(b) Measure the resistance according to the value(s) in the table below.

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE