marthabower Posted January 9, 2009 Report Share Posted January 9, 2009 Where should I start in trying to troubleshoot this code. I have a 1999 Cadillac STS. Link to comment Share on other sites More sharing options...
JimD Posted January 9, 2009 Report Share Posted January 9, 2009 You sure enough have a tiger by the tail with that code! In many years of reading/participtaing in Cadilac forums, I have not seen a report of P1810. First thing I would do is clear the code and see if it sets again as a confirmation. Several times. Second, I would inspect the chassis wiring - connectors at the PCM and transaxle. P1810 relates to a multi-position switch in the transaxle that reports the position of a valve. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
marthabower Posted January 10, 2009 Author Report Share Posted January 10, 2009 You sure enough have a tiger by the tail with that code! In many years of reading/participtaing in Cadilac forums, I have not seen a report of P1810. First thing I would do is clear the code and see if it sets again as a confirmation. Several times. Second, I would inspect the chassis wiring - connectors at the PCM and transaxle. P1810 relates to a multi-position switch in the transaxle that reports the position of a valve. Link to comment Share on other sites More sharing options...
marthabower Posted January 10, 2009 Author Report Share Posted January 10, 2009 Thanks for the info I have cleared this code several times and it will not go away. The car will not engage into any gear. I have checked the wiring but will double check it just in case. I know this code is for the TFP Valve Position Switch Circuit. Where is it located in the tranny. Any more suggestion on what to check before I have the tranny pulled. Thanks Martha Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 11, 2009 Report Share Posted January 11, 2009 Where should I start in trying to troubleshoot this code. I have a 1999 Cadillac STS. See this thread http://caddyinfo.ipbhost.com/index.php?showtopic=12067 Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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