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Home >> Mercury >> 1997 >> Sable V6-3.0L VIN U >> Repair and Diagnosis >> Powertrain Management >> Transmission Control Systems >> Testing and Inspection >> Diagnostic Trouble Code Descriptions >> Vehicle Speed Sensor (VSS)
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Vehicle Speed Sensor (VSS)

DESCRIPTION
The Vehicle Speed Sensor (VSS) a magnetic pickup that sends a signal to the Powertrain Control Module (PCM). The VSS signal tells the powertrain control module the vehicle speed. The PCM uses this signal to control shift scheduling and electronic pressure control.

SYMPTOMS
Harsh engagements, firm shift feel, abnormal shift schedule, unexpected downshifts may occur at closed throttle. Torque converter clutch will not engage.

DTC's
P0500, P0503, P1500, P1501

NOTE: P0500 may also be set by a low transaxle fluid level.