DTC B1775: Microphone Input/Output Short to Power/Open NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A.

1. Clear the DTCs with the HDS.

1. Turn the ignition switch OFF, and then back ON (II).

1. Check for DTCs with the HDS.

Is DTC B1775 indicated?

YES | - | Go to Step 4 .
NO | - | Intermittent failure, the system is OK at this time.■

1. Turn the ignition switch OFF.

1. Remove the roof console and the upper panel.

1. Disconnect the 28P connector from the roof console and the 22P connector from the hands free telephone control unit.

1. Turn the ignition switch ON (II).

1. Check for voltage between hands free telephone control unit the 22P connector terminal No. 9 and body ground.

Is there battery voltage?

YES | - | Repair short in the wire between the hands free telephone control unit and the roof console.■
NO | - | Go to Step 9 .

1. Turn the ignition switch OFF.