P1121 SUBARU Possible Causes
- Faulty neutral position switch
- Neutral position switch harness is open or shorted
- Poor electrical connection in neutral position switch circuit
How to Fix P1121 SUBARU Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check engine light on (or service engine soon warning light)
P1121 SUBARU Meaning
Neutral position switch circuit low input [MT Vehicles]
Neutral position switch circuit low input [AT Vehicles]