Honda DTC P1108 – Barometric Pressure Circuit High Input
DTC P1108 meaning on Honda
DTC P1108 on a Honda refers to a fault in the Barometric Pressure Circuit, indicating a high input signal detected by the Engine Control Module (ECM) or Powertrain Control Module (PCM).
Honda DTC P1108 symptoms
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance or power
- Potential fuel economy decrease
Honda DTC P1108 causes
- Faulty barometric pressure sensor
- Wiring or connector issues in the barometric pressure circuit
- ECM/PCM malfunction
Honda DTC P1108 seriousness
The seriousness of DTC P1108 on a Honda depends on the underlying cause. Ignoring this DTC can lead to poor engine performance, reduced fuel efficiency, and potential long-term damage if left unresolved.
How to diagnose DTC P1108 on Honda
- Use an OBD-II scanner to retrieve the DTC and freeze frame data
- Inspect the barometric pressure sensor and its wiring for any visible damage
- Check the sensor’s voltage and resistance values according to the manufacturer’s specifications
- Perform a thorough inspection of the ECM/PCM and related circuits
How to fix DTC P1108 on Honda
- Replace the faulty barometric pressure sensor if necessary
- Repair or replace any damaged wiring or connectors in the circuit
- If the ECM/PCM is faulty, it may need to be reprogrammed or replaced
How to erase DTC P1108 on Honda
- Use an OBD-II scanner to clear the DTC and reset the Check Engine Light
- Ensure the underlying issue causing the DTC has been resolved before clearing it
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