B1356 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1356 – Ignition Run Circuit Open
B1356 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1356 Possible Causes
Faulty Ignition Switch,Ignition Switch harness is open or shorted,Ignition Switch circuit poor electrical connection,Faulty Smart Junction Box (SJB)
The Ignition Switch RUN circuit provides greater than 10 volts through the circuits to the Smart Junction Box (SJB) when the key is in the RUN position. The OBDII sets when the Ignition Switch signal is not factory specifications.