1. Check for continuity between the adaptive cruise control (ACC) unit 20P connector No. 3 terminal and body ground.

Is there continuity?

YES | - | Go to Step 24 .
NO | - | Repair an open in the wire between the adaptive cruise control (ACC) unit and the right front pressure sensor.■

1. Remove the jumper wire from the right front pressure sensor.

1. Reconnect all connectors.

1. Turn the ignition switch ON (II).

1. Check the brake switch signal (BRAKE SW (N. O.)) with the HDS.

Does the indication show ON when the brake pedal is pressed, and show OFF when the brake pedal is released?

YES | - | Go to Step 29 .
NO | - | Go to Step 28 .

1. Check for DTCs with the HDS.

Is DTC 49 indicated?

YES | - | Go to Step 30 .
NO | - | Go to Step 29 .

1. Check for DTCs with the HDS.

Is DTC 60, 110, or 111 indicated?

YES | - | Troubleshoot the indicated DTC.■
NO | - | Troubleshoot the brake pedal position switch circuit. ■