K12 Possible Conditions Not Checked

NOTE: The ABS is disabled with the Rotunda Breakout Box 014-00322 or equivalent installed.

It is assumed that the wiring integrity has been verified and that the rear axle speed sensor and Antilock brake electronic control module have been replaced. The following are time consuming and should be performed only after all previous possibilities have been exhausted.

- Inspect Circuits 523 and 519 along their entire length from the rear axle speed sensor connector to the Antilock brake electronic control module harness connector for chafing or any other damage that could lead to an open or shorted condition.

- Install breakout box with overlay. Repeat test steps K3-K6 while driving vehicle. Look for any change in indicated continuity (turning on the DVOM beeper will help).