Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC P2122, P2123, P2127, P2128, or P2138
| Circuit | Short to Ground | Open | High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| APP Sensor 1 Signal | P2122 | P2122 | P2138 | P2123 | P2138 |
| APP Sensor 1 5-Volt Reference | P0698, P2122 | P2122 | P2138 | P0401, P0699, P2123, P2565 | P2138 |
| APP Sensor 1 Low Reference | - | P2123 | P2138 | - | P2138 |
| APP Sensor 2 Signal | P2127 | P2127 | P2138 | P2128 | P2138 |
| APP Sensor 2 5-Volt Reference | P011A, P0117, P0462, P0522, P0652, P2127 | P2127 | P2138 | P011A, P0118, P0653, P2128 | P2138 |
| APP Sensor 2 Low Reference | - | P2128 | P2138 | - | P2138 |