Code P1375 Description
The diagnostic code P1375 (DTC) refers to a problem with the vehicle’s IC 24X reference circuit. This code indicates that the voltage in this circuit is above the specified range, causing a malfunction in the vehicle’s ignition control system. The IC 24X reference circuit is responsible for providing the Engine Control Module (ECM) with essential data regarding the position of the crankshaft and camshaft. This information is crucial for the ECM to accurately control ignition timing and fuel injection processes.
Common Causes of P1375
NOTE: The causes listed may not be a complete list of all potential issues, and there may be other causes.
- Faulty crankshaft or camshaft position sensor
- Wiring or connector issues in the IC 24X reference circuit
- ECM malfunction
- Excessive resistance in the circuit
- Voltage regulator malfunction
Symptoms of P1375
- Engine misfires
- Rough idle or stalling
- Reduced engine power
- Check Engine light is on
- Poor fuel consumption
How to Fix P1375
- Diagnose the issue using a scan tool to retrieve the DTC and perform a thorough inspection of the IC 24X reference circuit components.
- Check the wiring and connectors for any signs of damage or corrosion. Repair or replace any damaged components.
- Verify the proper operation of the crankshaft and camshaft position sensors. Replace faulty sensors.
- Check the voltage regulator’s operation and replace it if necessary.
- Clear the DTC and perform a road test to ensure the issue has been resolved.