P0AC7 2018 Chevrolet Silverado Code - Hybrid/EV Battery Temperature Sensor 2 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
- P0AC7 2018 Chevrolet Silverado indicates Hybrid/EV Battery Temperature Sensor 2 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.
Code P0AC7 2018 Chevrolet Silverado Description
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).
What are the Possible Causes of the DTC P0AC7 2018 Chevrolet Silverado?
- 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 P0AC7 2018 Chevrolet Silverado?
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 P0AC7 2018 Chevrolet Silverado 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.
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Frequently Asked Questions about P0AC7 2018 Chevrolet Silverado Code
What does the OBDII code P0AC7 mean on a 2018 Chevrolet Silverado?
The P0AC7 code indicates a low voltage issue in the Hybrid/EV Battery Temperature Sensor 2 circuit, which monitors the temperature of the hybrid or EV battery pack.
What are the common symptoms of the P0AC7 code?
Symptoms may include an illuminated check engine light, reduced hybrid battery performance, limited electric mode functionality, and potential overheating of the battery pack.
What causes the P0AC7 code to appear?
Common causes include a faulty battery temperature sensor, damaged or corroded wiring, loose electrical connections, or problems with the hybrid battery control module.
Can I drive my 2018 Chevrolet Silverado with the P0AC7 code?
It’s not recommended to drive for extended periods with this code, as it could lead to overheating or improper operation of the hybrid battery system.
How is the P0AC7 code diagnosed?
Technicians will use a scan tool to confirm the code, inspect the temperature sensor wiring and connections, and test the voltage output of the sensor to determine if it’s functioning properly.
How do you fix the P0AC7 code?
Repairs may involve replacing the faulty temperature sensor, repairing damaged wiring, cleaning corroded connections, or updating/reprogramming the hybrid battery control module.
How much does it cost to fix the P0AC7 code on a 2018 Chevrolet Silverado?
Repair costs can vary, but replacing a battery temperature sensor typically ranges from $150 to $400, depending on parts and labor rates.
Can a faulty hybrid battery cause the P0AC7 code?
Yes, a failing hybrid battery or internal issues within the battery pack can sometimes trigger this code, though it’s less common than sensor or wiring problems.
How can I prevent the P0AC7 code from occurring?
Regular maintenance, including inspection of wiring and connectors, and ensuring proper cooling of the hybrid battery system, can help prevent this issue.
Does the P0AC7 code require reprogramming the vehicle's computer?
In some cases, reprogramming or updating the hybrid battery control module may be necessary after repairs to clear the code and ensure proper functionality.
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