Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
DTC P0989 or P0990
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| TFP Switch 1 Signal | P0842 | P0843 | P0843 | - |
| TFP Switch 3 Signal | P0872 | P0873 | P0873 | - |
| TFP Switch 4 Signal | P0877 | P0878 | P0878 | - |
| TFP Switch 5 Signal | P0989 | P0990 | P0990 | - |