Affected Component: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

Date Published

JAN 01, 2000

NHTSA TSB #

612403

TSB Document

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Ford for this TSB. Call your local Ford dealer's service department & ask for a copy of TSB# 7873.

Summary

AN INTERMITTENT INCREASE IN THE RADIO VOLUME DURING PARK TO REVERSE NEUTRAL TO DRIVE, AND ABRUPT DRIVE TO PARK SHIFT LEVER MOVEMENTS. THIS CAN ONLY HAPPEN ON AUTOMATIC TRANSMISSION VEHICLES WITH THE AUTOMATIC VOLUME CONTROL (AVC) FEATURE OF THE AUDIO SYSTEM TURNED ON. THE CAUSE IS NOISE IN THE OUTPUT SHAFT SPEED (OSS) SENSOR SIGNAL SENT TO THE POWERTRAN CONTROL MODULE (PCM) THEN PASSED ON TO THE AUDIO SYSTEM.