Without Scan Tool

DIAGNOSTIC TROUBLE CODE (DTC) DETECTING CONDITION
NOTE: If both DTC 21 (P1320) and DTC 11 (P0340), 47 (P1335), 82 (P0335) or 95 (P1336) are displayed, perform TROUBLE DIAGNOSIS FOR DTC 11, 47, 82 or 95 first.
1) Turn ignition switch "ON".
2) Start engine.
3) Turn ignition switch "OFF" and wait for at least 3 seconds, then "ON".
4) Perform diagnostic test mode II (Self-diagnostic results) with Engine Control Module (ECM).