DTC codes / Mazda codes / P1754
P1754 on a Mazda means the transmission control module (TCM) has detected an electrical fault in the coast clutch solenoid circuit, which controls a hydraulic clutch inside the automatic transmission. The TCM monitors the solenoid's current draw and sees a value outside the expected range, so it sets this code and may default to a fail-safe shift strategy.
Guidance is general and written for Mazda vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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