P0AC8 2014 Chevrolet Silverado Code - Hybrid/EV Battery Temperature Sensor 2 Circuit High 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
- P0AC8 2014 Chevrolet Silverado indicates Hybrid/EV Battery Temperature Sensor 2 Circuit High 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 P0AC8 2014 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 less than -69°C (-92°F).
What are the Possible Causes of the DTC P0AC8 2014 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 P0AC8 2014 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 P0AC8 2014 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 P0AC8 2014 Chevrolet Silverado Code
What does the OBDII code P0AC8 mean on a 2014 Chevrolet Silverado?
The P0AC8 code indicates an issue with the Hybrid/EV battery temperature sensor 2 circuit, specifically a high voltage reading.
What are the common symptoms of the P0AC8 code?
Symptoms may include an illuminated check engine light, reduced fuel efficiency, limited hybrid system functionality, or the vehicle entering limp mode.
What causes the P0AC8 code to appear?
Common causes include a faulty battery temperature sensor, damaged wiring, loose or corroded electrical connections, or a malfunctioning hybrid battery control module.
Can I still drive my 2014 Silverado with the P0AC8 code?
Driving with this code is not recommended as it may lead to reduced performance, potential battery overheating, or further damage to the hybrid system.
How is the P0AC8 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the temperature sensor and wiring for damage, and test the sensor's voltage readings to identify the fault.
Is the Hybrid/EV battery temperature sensor 2 expensive to replace?
The cost depends on labor rates and parts pricing, but replacing a battery temperature sensor is generally less expensive than repairing major hybrid system components.
Can a software issue trigger the P0AC8 code?
While rare, a software glitch in the hybrid control module could potentially cause this code, requiring a reprogramming or update.
How can I fix the P0AC8 code on my Silverado?
Repairs may involve replacing the faulty sensor, repairing damaged wiring, cleaning corroded connections, or recalibrating the hybrid control module.
Is the P0AC8 code specific to the 2014 Chevrolet Silverado?
No, the P0AC8 code is a generic OBDII code that can appear on various hybrid or EV vehicles, but the specifics of diagnosis and repair may vary by make and model.
What tools are needed to troubleshoot the P0AC8 code?
You’ll typically need an OBDII scan tool, a multimeter for testing voltage and continuity, and possibly manufacturer-specific diagnostic equipment for hybrid systems.
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