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 there's a problem with a part that tells you how much charge is left in the battery. It's like when your phone says it's fully charged, but it's not.
The P0E40 code is triggered when the vehicle's powertrain control module (PCM) detects a high voltage condition in the charge status indicator circuit.
The charge status indicator is a part of the vehicle's battery management system. It communicates the battery's charge level to the vehicle's control systems. A 'circuit high' condition indicates that the voltage in this circuit is higher than expected, which could be due to a short circuit or a faulty component.
• Inaccurate battery charge readings
• Battery warning light on the dashboard
• Potential charging system malfunction
• Faulty charge status indicator
• Wiring issues such as a short circuit
• Faulty PCM
PCM: Powertrain Control Module, the car's main computer that controls engine and transmission functions.
Circuit High: A condition where the voltage in a circuit is higher than the expected range.
• Check the battery charge status indicator for proper operation.
• Inspect the wiring and connectors for damage or corrosion.
• Test the PCM for faults or errors.
• Replace the charge status indicator if faulty.
• Repair or replace damaged wiring and connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wiring repair kit
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain battery connections.
• Ensure the vehicle's software is up to date.
• Avoid overcharging the battery.
Sensor Issue
• Have your vehicle checked by a professional if the battery light comes on.
• Avoid using high-power accessories until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on electrical components.
This code has been associated with hybrid and electric vehicles, where battery management is critical.
Moderate – It's important to address this issue to prevent potential battery damage.
Ignoring this issue could lead to battery failure, which may affect vehicle safety.
• Vehicle parked with ignition on.
• Battery fully charged.
The charge status indicator is typically located near the vehicle's battery or integrated into the battery management system.
Q: Can I drive with a P0E40 code?
A: It's possible to drive, but it's recommended to address the issue soon to avoid battery problems.
Q: Does this code affect fuel efficiency?
A: It may indirectly affect fuel efficiency if the battery system is not functioning properly.
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