Jeep Cherokee XJ 1988 1989 1990 1991 1992 Wiring Diagrams Collection of free car service manuals. Jeep Cherokee XJ 1988 1989 1990 1991 1992 Wiring Diagrams service manual download page WIRING DIAGRAMS :: 1984 - 1991 :: Jeep Cherokee (XJ WIRING DIAGRAMS. 1988 Jeep Cherokee. 1988 Wiring Diagrams Jeep. Cherokee & Wagoneer. IDENTIFICATION. COMPONENT LOCATION MENU. COMPONENT LOCATIONS TABLE. Component Figure No. (Location) A/C & Htr Systems 5 (A-D 16-19) Alternator 1 (C 3) Audio Alarm Module 7 (D 27) Back-Up Lt Sw (M/T) 4 (D 12) Battery 1 (A 2) Beam Sel Sw 6 (E 23) SOLVED: I need a wiring diagram for a jeep cherokee 1992 SOURCE: Need diagram for 1998 Jeep hi, you didn't say what engine you have, I'll assume it's the 4.0 L in line 6 cylinder. Standing on the PASSENGER side of the jeep, the spark plug at the front of the engine is #1, the next is #2, and so on to #6 which is at the back (nearest the windshield).