Buzz Pop Static Or Whine Noise From Any Speaker - keywords amp entertainment front left low poor radio rear right reception volume whistle whine

This PI was updated to add new models. Please discard PIT3534A.

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

Vehicles equipped with the Non-Class 2 amplifier (RPO UQ7, w/o Y91) may have a concern of no volume or speaker buzz, whine, distortion, pop, or static noise coming from any speaker.

Inspect the following areas:

1. Inspect the low level audio circuits (1947, 511, 1546, 512, 1547, 599, etc.) for opens or shorts between the radio and amp.
2. Inspect center console wire harness, approximately 5 inches (12.7 cm) from connector C306 towards the amp connector, for excessive twisting. If the harness has excessive twisting the bare drain wire (circuits 2011 or 2099) may cut into the low level audio signals and cause this concern. Repair/Replace harness as necessary.
3. The center console harness contains power and ground circuits which may induce noise into the audio circuits. Removing the harness tape and separating the wires will reduce or eliminate the noise. Repair/Replace harness as necessary.
4. Inspected C306 and the amplifier connectors for loose terminal connections. Repair/Replace harness as necessary.

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.