Possible causes
– Faulty Neutral Position Switch
– Neutral Position Switch harness is open or shorted
– Neutral Position Switch circuit poor electrical connection
– Neutral Position Switch harness is open or shorted
– Neutral Position Switch circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1121 SUBARU Description
Neutral Position Switch Circuit low Input [MT Vehicles]
Neutral Position Switch Circuit Low Input [AT Vehicles]
Neutral Position Switch Circuit Low Input [AT Vehicles]