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 a sensor in the car that measures the temperature of the heat pump is showing a temperature that's too low, which might be a problem.
The heat pump system in the vehicle uses sensors to monitor temperature and pressure. Code P1D87 indicates that the temperature reading from sensor 'B' is lower than expected.
The P1D87 code is triggered when the Powertrain Control Module (PCM) detects that the temperature reading from the heat pump pressure/temperature sensor 'B' is below the specified threshold. This could indicate a sensor malfunction or an actual low temperature condition in the system.
• Check Engine Light illuminated
• Reduced heating efficiency
• Unusual temperature readings on the dashboard
• Faulty heat pump pressure/temperature sensor 'B'
• Wiring issues or poor electrical connections
• Actual low temperature condition due to system malfunction
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code and check for other related codes.
• Inspect the wiring and connections to the sensor for damage or corrosion.
• Test the sensor using a multimeter to ensure it is functioning properly.
• Replace the faulty heat pump pressure/temperature sensor 'B'.
• Repair or replace damaged wiring or connectors.
• Check and repair the heat pump system if there is an actual low temperature condition.
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, pliers)
$100 - $300
Moderate
• Honda Accord Hybrid
• Toyota Prius
• Chevrolet Volt
• Regular maintenance and inspection of the heat pump system.
• Ensure electrical connections are clean and secure.
• Monitor temperature readings for any unusual changes.
Sensor Issue
• Have the vehicle inspected by a professional if the check engine light is on.
• Avoid driving in extreme temperatures until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code is relatively uncommon and typically associated with hybrid or electric vehicles equipped with heat pump systems.
Moderate – It's important to address this issue to ensure proper vehicle performance and efficiency.
Driving with a malfunctioning heat pump system may not be safe, especially in extreme weather conditions.
• Vehicle at operating temperature
• Heat pump system active
The heat pump pressure/temperature sensor 'B' is typically located near the heat pump unit, often in the engine bay or HVAC system.
Q: Can I drive with a P1D87 code?
A: It's not recommended to drive for long periods with this code active, as it may affect the vehicle's efficiency and heating performance.
Q: How do I reset the P1D87 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, the code should not return.
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