B1086:07 Air Distribution Damper Motor: Mechanical Failure INSPECT for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new defrost/panel/floor mode door actuator. REFER to Section 412-01 . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
B1086:11 Air Distribution Damper Motor: Circuit Short to Ground GO to Pinpoint Test J .
B1086:12 Air Distribution Damper Motor: Circuit Short to Battery GO to Pinpoint Test J .
B1086:13 Air Distribution Damper Motor: Circuit Open GO to Pinpoint Test J .
Pinpoint Test JThe HVAC module runs off a fuse in the BJB, and controls power/operation of the blend door actuators. Very likely the problem is in the connector/wiring, or in the HVAC module itself if replacing the blend door does not work.