Subaru OBD-II 1996 & Newer models DTC P1150 – Front Oxygen Sensor Heater Circuit High Input
DTC P1150 meaning on Subaru OBD-II 1996 & Newer models
DTC P1150 indicates a high input in the front oxygen sensor heater circuit of Subaru vehicles equipped with OBD-II systems from 1996 onwards.
Subaru OBD-II 1996 & Newer models DTC P1150 symptoms
- Check Engine Light (CEL) illuminated on the dashboard
- Poor fuel economy
- Engine may run rough or hesitate
Subaru OBD-II 1996 & Newer models DTC P1150 causes
- Defective front oxygen sensor
- Wiring or connector issues in the oxygen sensor heater circuit
- Faulty Engine Control Module (ECM)
Subaru OBD-II 1996 & Newer models DTC P1150 seriousness
The seriousness of DTC P1150 lies in its impact on fuel efficiency and emissions. Ignoring this issue can lead to increased fuel consumption and potential harm to the environment due to improper combustion.
How to diagnose DTC P1150 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to retrieve the fault code
- Inspect the front oxygen sensor and its wiring for any visible damage
- Check the resistance of the oxygen sensor heater circuit
- Test the ECM for proper functioning
How to fix DTC P1150 on Subaru OBD-II 1996 & Newer models
- Replace the front oxygen sensor if faulty
- Repair any damaged wiring or connectors in the heater circuit
- If the ECM is determined to be the issue, consider reprogramming or replacing it
How to erase DTC P1150 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to clear the fault code after the repair has been completed
- Alternatively, disconnecting the car battery for a few minutes can also reset the ECM and clear the code
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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