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P0502 Diagnostic Trouble Code Discussion for May 2004

VSS Circuit Low Input

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Trouble Ticket Help Requests for DTC P0502
Help Request Posted
1999 Chevrolet Lumina 3.1L MIL Lamp on, BOGS OR SLIPPAGE VIN: 2G1WL52MX9
P0502: VSS Circuit Low Input. ... possible transmission slippage only when it rains. Ignition system and entire engine was sprayed heavily with water, power braked and driven. Checked ALLDATA for bulletins and IATN. Could not duplicate problem. No engine or transmission codes at that time....
May 04, 2004
1998 Saab 900 SE Turbo 2.0L MIL Lamp on VIN: YS3DF78N3W
P0502: vss. ... speedometer when driving. No engine MIL; no apparent performance issues. OBD2 code retrieval: P0502, vehicle speed sensor. No data stream access (aftermarket scanner). Replaced sensor (we know there are 2 sensors on tranny, one for input speed & one fo...
May 13, 2004