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as mentioned above the relay release correct! without tcm, i have alle the 12V when turned on at 290/291/810/657 and 0V when turned off when i connect the J1 from TCM i have 12V when turned on and 4.7 when turned off at 290/291/810/657 does the TPS always have 5V even when Turned off?

Hello, i just started to repair my HMMWV. i have the problem that the trans light is always on, i checked with the multimeter #657 with masterswitch is off, there are 4.7V the Relay is working correct, 12V on run, 0 at off i also have always 5V at the TPS sensor, even when the engine is...