AutoCodesGMC – P0C35 2018 GMC Sierra

P0C35 2018 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 6 Circuit Low Voltage

Quick Answer

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly 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
P0C35 2018 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 6 Circuit Low Voltage.
Common causes
Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly 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 182
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 22, 2024
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Code P0C35 2018 GMC Sierra Description

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. The non-serviceable battery temperature sensors are located within the battery sections. Two temperature sensors are located in each battery section. The temperature sensor is a variable resistor that measures the temperature of the battery cell group. The hybrid/EV interface control module supplies 5 V to the signal circuit and is a ground for the low reference circuit. The battery temperature sensor resistance changes with battery temperature. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases.
Each Hybrid/EV Battery Interface Control Module communicates the temperature sensor values to the Hybrid/EV Powertrain Control Module via serial data.
The Hybrid/EV Powertrain Control Module uses the battery temperature sensors to determine the Hybrid/EV Battery Module temperature in order to control the battery cooling system operation.
The Diagnostic Trouble Code (DTC) will be set when the hybrid battery temperature sensor is greater than 160°C (320°F).
OBDII Code P0C35 2018 GMC Sierra - Hybrid/EV Battery Temperature Sensor 6 Circuit Low Voltage - AutoCodes.com
P0C35 2018 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 6 Circuit Low Voltage

What are the Possible Causes of the DTC P0C35 2018 GMC Sierra?

  • Faulty Hybrid/EV Battery Assembly
  • Hybrid/EV Battery Assembly harness is open or shorted
  • Hybrid/EV Battery Assembly circuit poor electrical connection
  • Faulty Hybrid/EV Battery Interface Control Module

How to Fix the DTC P0C35 2018 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 P0C35 2018 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 P0C35 2018 GMC Sierra code?

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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 P0C35 2018 GMC Sierra Code

What does the OBDII code P0C35 mean for a 2018 GMC Sierra?

The code P0C35 indicates a low voltage issue in the Hybrid/EV Battery Temperature Sensor 6 circuit, which monitors the temperature of the battery pack.

What are the symptoms of the P0C35 code?

Symptoms may include a check engine light, reduced fuel efficiency, decreased hybrid battery performance, or the vehicle entering a limp mode.

What causes the P0C35 code in a 2018 GMC Sierra?

Common causes include a faulty temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the hybrid battery control module.

Can I drive with the P0C35 code active?

Driving may be possible, but it is not recommended as this issue could lead to reduced performance or further damage to the hybrid battery system.

How can I diagnose the P0C35 code?

Start by visually inspecting the wiring and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the sensor circuit.

How is the P0C35 code fixed?

Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring, or addressing issues with the hybrid battery control module.

How much does it cost to fix the P0C35 code?

The repair cost can vary widely, ranging from $100 to $500 depending on whether the sensor, wiring, or control module needs replacement.

Can a low hybrid battery voltage cause the P0C35 code?

No, the code specifically relates to the temperature sensor circuit, not the overall battery voltage.

Does the P0C35 code affect the hybrid battery lifespan?

If not addressed promptly, the issue could lead to overheating or inefficient battery performance, potentially reducing its lifespan.

Can a software update fix the P0C35 code?

In rare cases, a software update for the hybrid battery control module may resolve the issue, but typically physical repairs are needed.

Discuss the causes and fixes for P0C35 2018 GMC Sierra OBDII Code

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