2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 230Get this manual
Quality of the image is intentionally reduced!
Section 03 ENGINE MANAGEMENT SYSTEM Subsection 05 (MONITORING SYSTEM AND FAULT CODES)
Disconnect the sensor and check for change in the fault code If the fau lt code stays the same, look