Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
C12A1 00
- The right valve high side voltage monitor signal is significantly greater than 0 V.
- The right valve low side voltage monitor signal is close to 0 V.
C12A9 00
- The left valve high side voltage monitor signal is significantly greater than 0 V.
- The left valve low side voltage monitor signal is close to 0 V.