P1154 SUBARU Possible Causes
- Faulty HO2S11
- HO2S11 harness is open or shorted
- Poor electrical connection in HO2S11 circuit
How to Fix P1154 SUBARU Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1154 SUBARU Meaning
HO2S11 Circuit Low Range/Performance is the generic description for Subaru code P1154, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the OBDII P1154 Subaru code.