P1548 – Infiniti DTC

Infiniti DTC P1548 – A/C Compressor Clutch Output Circuit Malfunction

DTC P1548 meaning on Infiniti

DTC P1548 on an Infiniti indicates a malfunction in the A/C compressor clutch output circuit. This fault code is specific to the control system of the air conditioning compressor in the vehicle.

Infiniti DTC P1548 symptoms

Symptoms of DTC P1548 in an Infiniti may include:

• Failure of the A/C compressor to engage
• Loss of cool air from the A/C system
• Malfunction indicator light (MIL) illuminated on the dashboard

Infiniti DTC P1548 causes

Common causes of DTC P1548 in an Infiniti include:

• Faulty A/C compressor clutch
• Defective A/C compressor relay
• Wiring issues in the A/C compressor clutch circuit

Infiniti DTC P1548 seriousness

The seriousness of DTC P1548 on an Infiniti depends on the driving conditions and climate. While it may not affect the overall drivability of the vehicle, it can lead to discomfort if the A/C system fails to function properly, especially in hot weather.

How to diagnose DTC P1548 on Infiniti

To diagnose DTC P1548 on an Infiniti, a mechanic may perform the following steps:

1. Use a scan tool to retrieve the fault code and freeze frame data
2. Inspect the A/C compressor clutch for proper operation
3. Check the A/C compressor relay and related wiring for faults

How to fix DTC P1548 on Infiniti

To fix DTC P1548 on an Infiniti, the following steps may be taken:

1. Replace the faulty A/C compressor clutch if necessary
2. Inspect and replace the A/C compressor relay if found defective
3. Repair any damaged wiring in the A/C compressor clutch circuit

How to erase DTC P1548 on Infiniti

To erase DTC P1548 on an Infiniti, a scan tool can be used to clear the fault code from the vehicle’s memory. After the repair has been completed, the code can be erased to reset the system and turn off the MIL on the dashboard.