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Honda Odyssey P0743 Fault After Transmission Rebuild - No Gear Engagement

Model: Honda Odyssey Fault Code: P0743 Posted: 2017-08-31 22:23

Hi everyone, I recently rebuilt my Honda Odyssey transmission. After reassembly, the vehicle started but immediately triggered the P0743 diagnostic code. The car will not shift into drive or reverse. I'm concerned about whether the rebuild caused this issue or if there's another underlying problem. Can anyone help me troubleshoot this? The P0743 code is typically associated with a wiring fault, so I'm looking for advice on how to verify proper electrical connections in the transmission harness.

Related fault codes
P0743
Comments (1)
Anonymous 2017-09-01 07:38

I'm not entirely clear whether you rebuilt the transmission specifically to fix the P0743 code or for another issue. Please confirm that. Are there any other diagnostic trouble codes present? A reliable OBD2 scanner would be helpful here. Note: The P0743 code is primarily a wiring-related fault. I recommend checking the transmission connector for proper voltage — specifically, ensure there's 12V at the TCC (Torque Converter Clutch) circuit and verify continuity on other relevant signals.