Step Motor Circuit
Table of contents
P1777 INFINITI Possible Causes
- Faulty Step Motor
- Step Motor harness is open or shorted
- Step Motor poor electrical connection
How do I fix code P1777 INFINITI?
Check 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.
Cost of diagnosing the P1777 INFINITI code
The cost of diagnosing the P1777 INFINITI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1777 INFINITI Description
The Step Motor changes the step by turning 4 coils ON/OFF according to the signal from Transmission Control Module (TCM). As a result, the flow of line pressure to the primary pulley is changed and the pulley ratio is controlled. The Diagnostic Trouble Code (DTC) will set when the Step Motor does not respond to the TCM command.