B2987
DTC B2987 or RrVENT motor lock is indicated.:A Problem in the Rear Vent Control Linkage, Doors, or Motor
1. Clear the DTC with the HDS.
2. Operate the climate control system in several modes.
3. Check for DTCs using the HDS or self-diagnostic.
Is DTC B2987 or RrVENT motor lock indicated?
YES - Go to step 4.
NO - Intermittent failure.
4. Turn the ignition switch OFF.
5. Test the rear vent control motor.
Is the rear vent control motor OK?
YES - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.
NO - Replace the rear vent control motor, or repair the rear vent control linkage or doors.