The ignition switch has four
positions: LOCK (0), ACCESSORY
(I), ON (II), and START (III).
LOCK (0) - You can insert or
remove the key only in this position.
To turn the key, the shift lever must
be in Park, and you must push the
key in slightly.
If the front wheels are turned, the
DTC P2270: Secondary HO2S (Sensor 2)
Circuit Signal Stuck Lean
DTC P2271: Secondary HO2S (Sensor 2)
Circuit Signal Stuck Rich
NOTE: Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the general troubleshooting information.
1. Turn the ignition switch ON (II).
2