P077D
Generic code
Free on OBD DashX
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What P077D means
- Output Shaft Speed Sensor Circuit High
Possible symptoms
- Check and replace any damaged or loose wiring connections related to the output shaft speed sensor circuit.
- Inspect and replace the output shaft speed sensor if it is faulty or malfunctioning.
- Verify and repair any issues with the transmission control module (TCM) that may be causing the high circuit signal.
- Ensure proper ground connections for the output shaft speed sensor circuit are established and functioning correctly.
- If all other solutions fail, consider replacing the entire transmission for a more comprehensive fix.
Possible causes
- Faulty output shaft speed sensor
- Loose or damaged wiring connections to the output shaft speed sensor
- Malfunctioning engine control module (ECM) or transmission control module (TCM)
- Faulty transmission shift solenoid
- Transmission fluid level is low or contaminated
Possible solutions
- Erratic shifting or shifting problems
- Harsh or delayed shifting
- Loss of power or poor acceleration
- Check Engine Light illuminated
- Speedometer not working or inaccurate speed reading
Free on OBD DashX
P077D on OBD DashX
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