P077D
Output Shaft Speed Sensor Circuit High
P077D is an OBD-II diagnostic trouble code meaning: Output Shaft Speed Sensor Circuit High. Common causes: open or short circuit in the sensor circuit, output shaft speed sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Incorrect gear shifting
- Hard shifts
- Transmission transition to emergency mode
- Check Engine Light Illuminates
- Reduced vehicle dynamics
Causes
- Open or short circuit in the sensor circuit
- Output shaft speed sensor malfunction
- Problems with the sensor connector
- Transmission control unit malfunction
- Mechanical damage to the wiring harness
How to Fix
- Check the integrity of the sensor circuit
- Inspect the sensor connector and contacts
- Check sensor resistance
- Scan the control unit for other errors
- If necessary, replace the output shaft speed sensor
Related codes
Error P077D by Vehicle Brand
FAQ
What does the P077D code mean?
P077D is an OBD-II diagnostic trouble code that indicates: Output Shaft Speed Sensor Circuit High
What causes a P077D error code?
The most common causes of P077D include: Open or short circuit in the sensor circuit; Output shaft speed sensor malfunction; Problems with the sensor connector; Transmission control unit malfunction.
How do I fix a P077D diagnostic trouble code?
To fix P077D: Check the integrity of the sensor circuit. Inspect the sensor connector and contacts. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P077D?
Limited driving only, diagnose soon
How much does it cost to fix P077D?
The estimated repair cost for P077D is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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