Conditions for Running the DTC
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
P2120, P2122, P2123, P2125, P2127, P2128
- The system voltage is more than 5.23 volts.
- The ignition is in the Unlock/Accessory or Run position.
- DTC P0641 and P0651 are not set.
- DTC P2120, P2122, P2123, P2125, P2127, P2128 run continuously when the above conditions are met.
P2138
- The system voltage is more than 5.23 volts.
- The ignition is in the Unlock/Accessory or Run position.
- DTC P0641, P0651, P2120, P2125 are not set.
- DTC P2138 runs continuously when the above conditions are met.