Diagnostic Overview
Meaning: Fault code P0720 indicates that your vehicle's Engine Control Module (ECM/PCM) has registered a threshold discrepancy for output speed sensor circuit malfunction.
Can I Drive With This Code? Yes, you can safely drive for short distances, but prompt diagnostic inspection is recommended to prevent secondary damage or reduced engine performance.
What does the P0720 code mean?
Diagnostic Trouble Code (DTC) P0720 is defined as Output Speed Sensor Circuit Malfunction. This trouble code is logged when the onboard computer detects operational values outside calibrated thresholds.
When stored, the system illuminates the Check Engine Light (MIL) to alert the driver of an active fault condition.
Common Symptoms of Code P0720
Depending on vehicle model and operating conditions, symptoms may include:
- Transmission stays in 1st gear
- Speedometer dead
Common Potential Causes for Code P0720
Common causes for P0720 include:
- Cause 1: Faulty output speed sensor
- Cause 2: Wiring damage
Inspection Checklist
Recommended diagnostic procedures:
- Step 1: Check output sensor harness