Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the battery is getting too hot. It's like when your phone gets hot if you use it too much. The car has a special sensor that checks the battery's temperature, and it's saying the battery is too warm.
The P1A68 code is triggered when the temperature sensor 'H' in the hybrid or electric vehicle's battery pack detects a temperature that exceeds the manufacturer's specified limit.
The battery management system (BMS) monitors the temperature of the battery cells in a hybrid or electric vehicle. If the temperature sensor 'H' detects a temperature that is higher than the safe operating range, the BMS will set a P1A68 code. This is a protective measure to prevent damage to the battery and ensure safety.
• Warning light on the dashboard
• Reduced vehicle performance
• Possible battery overheating
• Faulty temperature sensor 'H'
• Cooling system malfunction
• Excessive battery load or usage
BMS: Battery Management System, which monitors and manages the battery's performance and safety.
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics and reporting in vehicles.
• Check for any additional codes that may indicate a cooling system issue.
• Inspect the wiring and connections to temperature sensor 'H'.
• Test the functionality of the temperature sensor 'H'.
• Replace faulty temperature sensor 'H'.
• Repair or replace any damaged wiring or connectors.
• Ensure the battery cooling system is functioning properly.
• OBD-II scanner
• Multimeter
• Thermal imaging camera
$200 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of the battery cooling system.
• Avoid excessive battery load.
• Monitor battery temperature regularly.
Sensor Issue
• Avoid driving aggressively until the issue is resolved.
• Have the vehicle inspected by a professional as soon as possible.
Battery-related issues may be covered under the vehicle's hybrid/EV warranty.
This code has become more common with the increased use of hybrid and electric vehicles, highlighting the importance of battery temperature management.
High – Battery overheating can lead to serious damage or safety hazards.
Ignoring this issue can lead to battery damage or pose a safety risk. Always address overheating issues promptly.
• Vehicle at operating temperature
• Battery under typical load conditions
The temperature sensor 'H' is located within the battery pack of the hybrid or electric vehicle.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to battery damage or even a fire hazard. It's important to address it promptly.
Q: Can I drive my car with this code?
A: It's not recommended to drive the vehicle until the issue is diagnosed and repaired, as it could lead to further damage.
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