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P0863 Diagnostic Trouble Code Discussion for June 2009

TCM Communication Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0863
Help Request Posted
2003 Toyota MR2 Spyder 1.8L No Start VIN: JTDFR32073
P0863: TCM Communication Circuit Malfunction. I am posting for another tech. This MR2 Spyder with the rare Sequential Manual Transmission(no clutch pedal)was towed in with a no crank condition. Found no ecm ground for the starter relay. While testing it cranked twice and started but usually will not crank...
June 23, 2009