P0C53 2017 GMC Sierra Code - Drive Motor Position Sensor Circuit 1 High Voltage
Quick Answer
The generator control module also called the starter/generator control module, is comprised of the following three control modules: the hybrid/EV powertrain control module 1, 14 V power module, and the drive motor control module. Common causes include Faulty Starter/Generator, Starter/Generator harness is open or shorted, Starter/Generator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0C53 2017 GMC Sierra indicates Drive Motor Position Sensor Circuit 1 High Voltage.
- Common causes
- Common causes include Faulty Starter/Generator, Starter/Generator harness is open or shorted, Starter/Generator circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0C53 2017 GMC Sierra Description
The generator control module monitors the angular position, speed, and direction of the starter generator rotor based upon the signals of the resolver-type motor position sensor. The position sensor contains a drive coil, two driven coils, and an irregular-shaped metallic rotor. The metallic rotor is mechanically attached to the shaft of the starter generator.
At ignition ON, an AC voltage, 10 kHz excitation signal is output to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregular-shaped rotor. The generator control module then monitors the two driven coil circuits for a return signal. The position of the irregular metallic rotor causes the magnetically induced return signals of the driven coils to vary in size and shape. A comparison of the two driven coils signals allows the generator control module to determine the exact position, speed, and direction of the starter generator rotor. The position sensor is a non-serviceable part of the starter generator.
The Diagnostic Trouble Code (DTC) will be set when the Drive Motor Position Sensor Circuit 1 reference voltage is greater than 4.9 V.
What are the Possible Causes of the DTC P0C53 2017 GMC Sierra?
- Faulty Starter/Generator
- Starter/Generator harness is open or shorted
- Starter/Generator circuit poor electrical connection
- Faulty Starter/Generator Control Module
How to Fix the DTC P0C53 2017 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0C53 2017 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0C53 2017 GMC Sierra code?
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Frequently Asked Questions about P0C53 2017 GMC Sierra Code
1. What does the OBDII code P0C53 mean on a 2017 GMC Sierra?
P0C53 indicates a "Drive Motor Position Sensor Circuit 1 High Voltage" fault, which refers to an issue in the position sensor circuit monitoring the electric drive motor.
2. What are the common symptoms of code P0C53 in a 2017 GMC Sierra?
Symptoms may include reduced vehicle performance, the check engine light turning on, difficulty in shifting gears, or the vehicle entering limp mode.
3. What causes the P0C53 code to appear in a GMC Sierra?
Common causes include a faulty drive motor position sensor, damaged wiring or connectors in the sensor circuit, or an issue with the hybrid/drive motor control module.
4. Can I still drive my 2017 GMC Sierra with a P0C53 code?
Driving with this code is not recommended as it may lead to reduced performance or further damage to the vehicle's hybrid or electric drive system.
5. How do you diagnose the P0C53 code in a GMC Sierra?
Diagnosis involves scanning for additional trouble codes, inspecting wiring and connectors for damage, and testing the drive motor position sensor for proper operation.
6. How do you fix the P0C53 code on a 2017 GMC Sierra?
Repairs may include replacing the drive motor position sensor, repairing or replacing damaged wiring or connectors, or reprogramming/repairing the control module if needed.
7. What tools are needed to troubleshoot the P0C53 code?
A high-quality OBDII scanner, a multimeter for testing voltage and continuity, and manufacturer-specific service information are essential for accurate troubleshooting.
8. How much does it cost to repair the P0C53 code on a GMC Sierra?
Repair costs vary depending on the issue, ranging from $100 for minor wiring repairs to $500 or more if the sensor or control module needs replacement.
9. Can a faulty drive motor position sensor cause other problems?
Yes, a faulty sensor can disrupt the vehicle’s hybrid or electric drive system, leading to performance issues or potential damage to other components.
10. Is the P0C53 code covered under warranty for a 2017 GMC Sierra?
It depends on the vehicle's warranty and coverage terms. Hybrid or electric-related components may have extended warranties, so checking with the dealership is recommended.
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