AutoCodes – GMC – P0C53 GMC

P0C53 GMC Code - Drive Motor 1 Position Sensor Circuit 1 High Voltage

Quick Answer

The drive motor position sensor is monitored by the motor control module. Common causes include Faulty Drive Motor 1 Position Sensor, Drive Motor 1 Position Sensor harness is open or shorted, Drive Motor 1 Position Sensor 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 GMC indicates Drive Motor 1 Position Sensor Circuit 1 High Voltage.
Common causes: Common causes include Faulty Drive Motor 1 Position Sensor, Drive Motor 1 Position Sensor harness is open or shorted, Drive Motor 1 Position Sensor 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.

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Code Popularity 970

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 07, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0C53 GMC Description

The drive motor position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed, and direction of the drive motor rotor based upon the signals of the resolver-type 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 drive motor. At vehicle ON, the motor control module outputs a 7 V AC, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregular-shaped rotor. The motor control module then monitors the two driven coil circuits for return signals, often referred to as Sine and Cosine waveforms, abbreviated SIN and COS. 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 coil signals allows the motor control module to determine the exact position, speed, and direction of the drive motor rotor. The drive motor 1 position sensor is serviceable separately from the drive motor assembly. The Diagnostic Trouble Code (DTC) will be set when the circuit voltage is greater than 4.5 V.

OBDII Code P0C53 GMC - Drive Motor 1 Position Sensor Circuit 1 High Voltage - AutoCodes.com — P0C53 GMC Code - Drive Motor 1 Position Sensor Circuit 1 High Voltage

What does this mean?

What are the Possible Causes of the DTC P0C53 GMC?

Faulty Drive Motor 1 Position Sensor
Drive Motor 1 Position Sensor harness is open or shorted
Drive Motor 1 Position Sensor circuit poor electrical connection
Faulty Power Inverter Module

How to Fix the DTC P0C53 GMC?

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 GMC 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 GMC code?

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Need Help with the Code?

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Information for Specific GMC Models

P0C53 2016 GMC Sierra — Drive Motor Position Sensor Circuit 1 High Voltage
P0C53 2017 GMC Sierra — Drive Motor Position Sensor Circuit 1 High Voltage
P0C53 2018 GMC Sierra — Drive Motor Position Sensor Circuit 1 High Voltage

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0C53 GMC Code

What does the OBDII code P0C53 mean for a GMC vehicle?

The P0C53 code indicates that there is a high voltage detected in the Drive Motor 1 Position Sensor Circuit 1, which is related to the vehicle's electric drive motor's position sensing.

What are the common symptoms associated with the P0C53 code?

Common symptoms may include diminished power output, erratic acceleration, warning lights on the dashboard, and potential issues with the vehicle's hybrid or electric drive system.

What could cause the P0C53 code to trigger?

Causes can include a faulty drive motor position sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning power control module (PCM), or issues with the electric drive motor itself.

How can I diagnose the P0C53 code?

To diagnose the P0C53 code, check the vehicle's OBDII system for additional codes, inspect the wiring and connectors for damage, test the drive motor position sensor's resistance and voltage, and verify the functionality of the power control module.

What are some common repair tips for fixing the P0C53 code?

Common repair tips include replacing the faulty drive motor position sensor, repairing or replacing damaged wiring or connectors, and ensuring all electrical connections are secure and free of corrosion.

Can driving with the P0C53 code cause further damage to my vehicle?

Yes, driving with the P0C53 code can lead to reduced performance and may potentially cause further issues within the vehicle's electric drive system if not addressed promptly.

Is it safe to drive my GMC if the P0C53 code is present?

While it may be possible to drive the vehicle, it is not advisable to do so for an extended period, as it could lead to more serious issues or safety concerns.

Do I need special tools to fix the P0C53 code?

Yes, special tools such as an OBDII scanner for troubleshooting and possibly a multimeter for testing electrical components may be necessary to properly diagnose and repair issues related to the P0C53 code.

How much might it cost to repair the P0C53 code?

Repair costs can vary widely depending on the specific issue, but expect to pay for diagnostic time, replacement parts, and labor, which could range from a few hundred to over a thousand dollars.

Should I take my vehicle to a dealership for the P0C53 code, or can a local mechanic handle it?

While a dealership may have more specific experience with GMC vehicles, a qualified local mechanic with experience in hybrid or electric systems should also be able to diagnose and repair the P0C53 code effectively.