Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer thinks the temperature sensor for the A/C heater is reading too high, like it's saying the heater is way hotter than it should be.
The P1D69 code indicates that the temperature sensor in the A/C Coolant Heater Control Module is reporting a temperature that is higher than the expected range.
The A/C Coolant Heater Control Module uses a temperature sensor to monitor the temperature of the coolant heater. If the sensor reports a temperature that is significantly higher than the expected range, the control module sets the P1D69 code. This could be due to a sensor malfunction, wiring issues, or a fault in the control module itself.
• Check Engine Light is on
• A/C system not functioning properly
• Inconsistent cabin temperature
• Faulty temperature sensor
• Wiring issues such as short circuits or open circuits
• Faulty A/C Coolant Heater Control Module
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics in vehicles.
A/C: Air Conditioning
• Use an OBD-II scanner to confirm the P1D69 code.
• Inspect the wiring and connectors for the temperature sensor.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Replace the A/C Coolant Heater Control Module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Honda Accord
• Honda Civic
• Honda CR-V
• Regular maintenance checks of the A/C system
• Ensure proper electrical connections
• Replace sensors at recommended intervals
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
Check with your vehicle manufacturer for specific warranty coverage on the A/C system components.
This code is relatively uncommon and typically associated with specific models that use advanced A/C systems.
Moderate – It is important to address this issue to ensure proper A/C functionality and prevent further damage.
Driving with a malfunctioning A/C system may not be safe in extreme weather conditions. Always ensure your vehicle is in good working order.
• Engine at operating temperature
• A/C system activated
The A/C Coolant Heater Control Module is typically located near the A/C system components, often in the engine bay or under the dashboard.
Q: Can I drive with the P1D69 code?
A: While you can drive with this code, it is recommended to address it soon to ensure your A/C system works properly.
Q: How do I reset the P1D69 code?
A: You can reset the code using an OBD-II scanner, but it will likely return if the underlying issue is not fixed.
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