Toyota Corolla (E120): Open in p/t (rh) circuit

Dtc b0131/64 open in p/t (rh) circuit

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Inspection procedure
1 Check courtesy lamp switch Check the courtesy switch, as shown in the illustration and table. Standard: 2 Check wire harness (integration relay  door courtesy sw) Disconnect the integration relay and door courtesy connectors.  check the continuity between th ...

Circuit description
When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

Steering wheel audio switches
Some audio features can be controlled using the switches on the steering wheel. Operation may differ depending on the type of audio system or navigation system. For details, refer to the manual provided with the audio system or navigation system. Operating the audio system using the steering whe ...