Diagnostic Aids
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Inspect for the following conditions:
- A high resistance on the low reference circuit of the MAF sensor may cause this DTC to set intermittently and also result in poor engine performance.
- An intermittent short to voltage on the low reference circuit of the MAF sensor may cause this DTC to set. It may also result in possible internal ECM damage.
- Any water in the air induction system may cause this DTC to set.
- Any contamination of the hot elements of the MAF sensor may cause this DTC to set.
If the condition is intermittent, refer to INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 2.2L & 3.0L VUE article.