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 computer in your car has detected a problem with the electrical circuit that controls one of the coolant pumps. It's like when a light switch is stuck and won't turn off.
The code P2B68 indicates that the voltage in the control circuit for Coolant Pump D is higher than expected. This could be due to a short circuit or a malfunctioning pump.
The P2B68 code is triggered when the Powertrain Control Module (PCM) detects a high voltage condition in the control circuit for Coolant Pump D. This could be caused by a short to power, an open circuit, or a faulty pump. The PCM monitors the voltage levels to ensure proper operation of the coolant pump, which is crucial for maintaining engine temperature.
• Check Engine Light is on
• Engine overheating
• Reduced engine performance
• Short circuit in the wiring
• Faulty coolant pump
• Damaged PCM
PCM: Powertrain Control Module, the car's computer that controls engine functions.
Coolant Pump: A device that circulates coolant through the engine to prevent overheating.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the coolant pump for proper operation.
• Repair or replace damaged wiring.
• Replace the faulty coolant pump.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect electrical connections.
• Ensure coolant levels are maintained.
• Schedule routine vehicle maintenance.
Sensor Issue
• Do not ignore the Check Engine Light.
• Avoid driving the vehicle until the issue is resolved to prevent engine damage.
Check with your vehicle manufacturer; some components may be covered under warranty.
This code has been associated with electrical issues in the cooling system in certain vehicle models.
High – This issue can lead to engine overheating, which can cause severe engine damage.
Driving with an overheating engine can be dangerous and may result in legal consequences if it leads to an accident.
• Engine running
• Coolant system under normal operating conditions
The coolant pump is typically located near the front of the engine, connected to the engine block.
Q: Can I drive with a P2B68 code?
A: It's not recommended to drive with this code as it may lead to engine overheating.
Q: How can I reset the code?
A: You can reset the code using an OBD-II scanner, but it's important to fix the underlying issue first.
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