CC21 DTC 34, 38, 44, 58, or 78

- Turn ignition switch OFF.

Anti-Lock Module:

- Disconnect anti-lock brake wiring connector from anti-lock brake control module.

Break Out Box:

- Connect 60-pin Rotunda Breakout Box 014-00322 with Anti-Lock Brake Adapter T90P-50-ALA or equivalent to the 55-pin connector on wiring harness.

- Measure resistance between pins 28 and 46.

- Is resistance between 800 and 1400 ohms?

YES -- Go to CC23. CC23 Check LH Rear ABS Sensor Voltage

NO -- Go to CC22. CC22 Check LH Rear ABS Sensor Resistance