Drive Motor Position Sensor Circuit High Voltage
The P0C58 code indicates that the Drive Motor Position Sensor circuit is reporting a voltage higher than the expected range. This sensor is critical for monitoring the rotor position of the electric drive motor, which the motor control module uses to precisely control motor operation. A high voltage condition can be caused by a short to battery voltage, a faulty sensor, or wiring issues. This can lead to incorrect motor timing, reduced performance, or loss of propulsion.
01. Most Common Causes
- Short to battery voltage in the sensor circuit
- Faulty drive motor position sensor
- Damaged wiring or connector
- Faulty motor control module
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced motor power or performance
- Vehicle may enter limp mode
- Possible jerking or hesitation during acceleration
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to retrieve all codes and freeze frame data.
Step 2: Visually inspect the sensor wiring and connector for damage, corrosion, or shorts.
Step 3: Measure voltage at the sensor signal wire; compare to manufacturer specifications.
Step 4: Test the sensor resistance and output; replace if out of range.
Step 5: If wiring and sensor are good, test the motor control module for faults.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. The vehicle may lose power or enter limp mode, which can be dangerous in traffic. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, depending on whether the sensor, wiring, or control module needs replacement.