PINPOINT TEST QB: DTCs P0603 or P1633: Keep Alive Power (KAPWR): Introduction
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- battery terminal condition
- KAPWR wire routing
- harness circuit: KAPWR
- powertrain control module (PCM) (12A650)
For PCM connector views or reference values, refer to the REFERENCE VALUES article.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Edge, F-150, Mark LT, MKX, Sable, Taurus, Taurus X |
190 Pin | B54 | KAPWR |
| Escape/Mariner | 150 (50-50-50) Pin | B45 | KAPWR |
| Expedition, Fusion, Milan, MKZ, Navigator |
140 Pin | B54 | KAPWR |
| Focus | 190 Pin | B62 | KAPWR |
| All other vehicles | 170 Pin | B45 | KAPWR |