- Faulty Ignition Switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
- Faulty Smart Junction Box (SJB)
- Engine Light ON (or Service Engine Soon Warning Light)
B1356 DescriptionThe 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.
B1356 Information for specific makes
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