Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost to diagnose the P0894 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
When the Engine Control Module (ECM) requests the neutral locked turbine feature, the Transmission Control Module (TCM) commands the 3rd, 5th, and reverse clutch and the 2-6 clutch to apply, which locks the turbine shaft. This provides a load to the engine and reduces the engine warm-up time. The Diagnostic Trouble Code (DTC) will be set when the TCM detects turbine speed greater than 50 RPM for 3 s. This condition must occur 3 times.
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