P0C53 2016 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 2016 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 2016 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 2016 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 2016 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 2016 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 2016 GMC Sierra code?
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Frequently Asked Questions about P0C53 2016 GMC Sierra Code
1. What does the OBDII code P0C53 mean on a 2016 GMC Sierra?
P0C53 indicates a problem with the Drive Motor Position Sensor Circuit 1, specifically detecting a high voltage condition.
2. What are the common symptoms of a P0C53 code?
Symptoms may include reduced engine performance, illuminated check engine light, limited acceleration, or issues with the hybrid or electric drive system.
3. What causes the P0C53 code on a 2016 GMC Sierra?
Possible causes include a faulty drive motor position sensor, damaged or corroded wiring, poor electrical connections, or a malfunctioning power inverter module.
4. Can I drive my 2016 GMC Sierra with a P0C53 code?
It is not recommended to drive the vehicle until the issue is resolved, as it may cause further damage to the hybrid or electric drivetrain components.
5. How do I diagnose the P0C53 code on my GMC Sierra?
Diagnosing this code involves using a scan tool to monitor sensor data, visually inspecting wiring and connectors, and testing the drive motor position sensor for proper operation.
6. What repairs can fix the P0C53 code?
Repairs may include replacing the drive motor position sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the power inverter module if necessary.
7. How much does it cost to fix a P0C53 code on a GMC Sierra?
Repair costs vary depending on the exact issue but can range from $200 for sensor replacement to over $1,000 if the power inverter module needs replacement.
8. Can a software update fix the P0C53 code?
In some cases, a reprogramming or software update to the vehicle’s control module may resolve the issue, but this depends on the manufacturer's technical service bulletins (TSBs).
9. What tools are needed to troubleshoot the P0C53 code?
You’ll typically need an OBDII scan tool, a multimeter to test the circuit, and access to the vehicle’s wiring diagram for accurate diagnosis.
10. Is the P0C53 code specific to hybrid or electric GMC Sierra models?
Yes, this code is associated with hybrid or electric drivetrain systems, as it relates to the drive motor position sensor.
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