Static Or Buzz Noise On AM That Varies With HVAC Blower Speed - keywords antenna body entertainment FM harness instrument interference IP motor panel radio reception static

This PI was created to include 2007 model year vehicles. Please discard PIC3721.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Buzz or static in the radio when the engine is off but the HVAC is on. The noise diminishes as blower speed is lowered and increases as the blower speed is increased. The EMI appears to come from the blower motor itself.

There is a main body IP harness located under the IP on the passenger side that is routed by the blower motor. To correct the concern, move the body IP harness forward away from the blower motor and secure with a tie strap. The tie straps should either be added to the HVAC case corner or to the opening in the toe bracket.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.