Power Supply Circuit (4B41-42)
4B41 : CHECK POWER SUPPLY CIRCUIT.Measure voltage between fuse box connector (B158) and chassis ground.
CHECK: Is the voltage more than 10 V ?
YES: Go to step 4B42.
NO: Repair wiring harness between fuse box and battery.
4B42: CHECK POWER SUPPLY CIRCUIT.
1. Disconnect connector from keyless entry control module.
2. Measure voltage between keyless entry control module connector (B176) and chassis ground.
CHECK: Is the voltage more than 10 V ?
YES: Go to step 4B51.
NO: Repair wiring harness between keyless entry control module and fuse box.