PINPOINT TEST DF: Vehicle Speed Circuit (VSC) Check: 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.
WARNING:
Strict observance of posted speed limits and driving conditions is mandatory when proceeding through the following drive cycles.
Failure to follow these instructions may result in personal injury.
This pinpoint test is intended to diagnose the following:
- harness circuits: VSC
- powertrain control module (PCM) (12A650)
| Pin | Circuit |
|---|---|
| 21 | VSC (Vehicle Speed Circuit) |
For PCM connector views or reference values, refer to the REFERENCE VALUES article.
| Connector | Pin | Circuit |
|---|---|---|
| 170 Pin | B29 | VSC |