Subaru OBD-II 1996 & Newer models DTC P1146 – Pressure sensor circuit range/performance problem (high input)
DTC P1146 meaning on Subaru OBD-II 1996 & Newer models
DTC P1146 on Subaru OBD-II 1996 & Newer models indicates a Pressure Sensor Circuit Range/Performance Problem with a high input signal. This fault code is specific to the pressure sensor circuit in the vehicle’s system.
Subaru OBD-II 1996 & Newer models DTC P1146 symptoms
- Check Engine Light (MIL) illuminated on the dashboard
- Decreased fuel efficiency
- Engine may run rough or stall
- Reduced engine performance
Subaru OBD-II 1996 & Newer models DTC P1146 causes
- Malfunctioning pressure sensor
- Wiring or connector issues in the pressure sensor circuit
- Faulty Engine Control Module (ECM)
Subaru OBD-II 1996 & Newer models DTC P1146 seriousness
The seriousness of DTC P1146 on Subaru OBD-II 1996 & Newer models can vary. While it may not cause immediate safety concerns, ignoring this issue can lead to further engine problems and decreased performance over time.
How to diagnose DTC P1146 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to retrieve the specific fault code
- Inspect the pressure sensor and its wiring for any visible damage or corrosion
- Check the connector for a secure connection
- Test the pressure sensor’s output voltage with a multimeter
How to fix DTC P1146 on Subaru OBD-II 1996 & Newer models
- Replace the pressure sensor if it is found to be faulty
- Repair or replace any damaged wiring or connectors in the circuit
- If necessary, reprogram or replace the Engine Control Module (ECM)
How to erase DTC P1146 on Subaru OBD-II 1996 & Newer models
To erase DTC P1146 on Subaru OBD-II 1996 & Newer models, you can use an OBD-II scanner to clear the fault code from the vehicle’s memory. After fixing the underlying issue, clearing the code will reset the Check Engine Light and monitor the system for any recurring problems.
Recommended tools for Subaru OBD-II 1996 & Newer models diagnostics
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Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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