LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 1999 >> Grand Cherokee Laredo, 4.7 N >> Repair and Diagnosis >> Body & Frame >> Power Windows >> System Tests >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Tests: Notes

NOTE: Manufacturer recommends using DRB scan tool to diagnose power window system. If DRB scan tool is not available, the following tests can be used to diagnose hard-wired components of power system, but results may be inconclusive. In order to obtain conclusive testing of power window system, Programmable Communications Interface (PCI) data bus network and all modules that provide inputs to, or receive outputs from power window system, must be checked. See BODY CONTROL COMPUTER TESTS - GRAND CHEROKEE article.