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Home >> Jeep >> 1993 >> Grand Cherokee Base, 4.0 S, AWD, AW4 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Self-Diagnostic System >> Entering On-Board Diagnostics >> Notes

Entering On-Board Diagnostics: Notes

NOTE: Although other scan testers are available, manufacturer recommends using DRB-II (Diagnostic Readout Box II) to diagnose system. CHECK ENGINE light function can be used, but it has limited diagnostic abilities.
NOTE: If fault code exists that is not related to cruise control system, see appropriate TESTS W/CODES - 2.5L & 4.0L article in the ENGINE PERFORMANCE Section.