2023-2025 Honda Civic Type R DTC P0369 Software Update

Symptoms of DTC P0369 in Honda Civic Type R

Owners of 2023-2025 Honda Civic Type R vehicles may notice the Malfunction Indicator Lamp (MIL) illuminating on the dashboard. This warning light is typically accompanied by the diagnostic trouble code (DTC) P0369, indicating a "Camshaft Position (CMP) EX-VTC actuator interruption." This specific issue points to a problem with the exhaust variable timing control (VTC) system.

Fault Codes

The primary diagnostic trouble code associated with this issue is:

• P0369: Camshaft Position (CMP) EX-VTC actuator interruption.

This code signals that the Powertrain Control Module (PCM) has detected an unexpected condition related to the exhaust VTC actuator.

Diagnosis and Trigger Conditions

The root cause of the "Camshaft Position (CMP) EX-VTC actuator interruption" leading to DTC P0369 is identified as a software anomaly within the Powertrain Control Module (PCM). Specifically, during vehicle startup, the PCM software may misinterpret the normal operation of the EX-VTC actuator as noise from the EX-CMP sensor B. This misinterpretation causes the MIL to illuminate and the DTC P0369 to be stored in the system.

Repair Procedure Summary

The corrective action for the 2023-2025 Honda Civic Type R DTC P0369 is a software update for the PGM-FI system. This procedure, detailed in Honda Service Bulletin 25-023, involves reprogramming the vehicle's Powertrain Control Module (PCM) to address the software logic error that triggers the fault code.

The repair process, performed by an authorized Honda dealer, includes:

1. Software Update Preparation: Technicians must ensure their diagnostic and reprogramming software (i-HDS, HDS, Honda ECU Reprogramming) are updated to the specified versions (1.010.019 or later, 3.105.036 or later, and 4.7.0.0 or later, respectively).
2. Battery Maintenance: The vehicle's 12-volt battery must be fully charged and connected to a stable power supply throughout the update to prevent control module failure.
3. PGM-FI Software Reprogramming: The PGM-FI software is updated using the ECU Reprogramming Application with a DST-i tool. The target Program ID is 37805-66V-A07 or later. If the current Program ID is older than 37805-66V-A04, technicians are instructed to refer to service bulletin 24-070 for a related DTC P0011 and perform a Clear and Complete IN-VTC Learn Procedure prior to this update.
4. DTC Clear: After the software update, an "ALL DTC CHECK" is performed to clear any diagnostic trouble codes that may have been set during the reprogramming process.

This software update is designed to prevent the PCM from misinterpreting the EX-VTC actuator operation, thereby resolving the DTC P0369 and turning off the MIL.

Important Warnings for Owners

Honda has issued several critical warnings regarding this software update and general diagnostic procedures:

• Warranty Coverage: Unnecessary or incorrect repairs resulting from a failure to update diagnostic and reprogramming software are not covered under warranty.
• Unauthorized Tools: Do not use the MongoosePRO VCI for this service bulletin, as it is not an American Honda-approved device.
• Battery Stability: Ensure the 12-volt battery is fully charged before starting any update. Do not use lithium-ion jump packs for power supply during reprogramming, as inconsistent power can lead to control module failure. Such failures due to improper completion of a software update (e.g., early key cycle, low battery voltage, disconnected DLC cable) are not covered by warranty.
• During Update Errors: If an error occurs during the update or the i-HDS freezes, do not disconnect the battery or turn the ignition to OFF. Instead, reboot the i-HDS and restart the process.
• Electrical Interference: To prevent control unit damage, do not operate any electrical components (headlights, audio system, brakes, A/C, power windows, door locks, etc.) during the update procedure.
• Routine Software Checks: Warranty reimbursement for technician labor is not provided for routine checking or installation of available software updates.

Owner Action

If your 2023-2025 Honda Civic Type R is displaying the Malfunction Indicator Lamp (MIL) with diagnostic trouble code P0369, it is recommended to contact an authorized Honda automobile dealer. Explain the symptoms and mention Honda Service Bulletin 25-023. The dealer will be able to perform the necessary PGM-FI software update to resolve the "Camshaft Position (CMP) EX-VTC actuator interruption" issue. This update is typically covered under warranty if the vehicle meets the specified conditions.

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Source: NHTSA ID: 11015700, Honda Service Bulletin 25-023.