(1) Tu r n t h e ign it ion swit ch t o t h e On posit ion . Set
t h e defogger swit ch in t h e On posit ion . Th e in dica t or
la m p sh ou ld ligh t . If OK, go t o St ep 2. If n ot OK, see
t h e Defogger Rela y dia gn osis in t h is gr ou p.
(2) Usin g a 12-volt DC volt m et er, con t a ct t h e ver-
t ica l bu s ba r on t h e r igh t side of t h e veh icle wit h t h e
n ega t ive lea d. Wit h t h e posit ive lea d, con t a ct t h e ver-
t ica l bu s ba r on t h e left side of t h e veh icle. Th e volt -
m et er sh ou ld r ea d ba t t er y volt a ge. If OK, go t o St ep
3. If n ot OK, r epa ir t h e open cir cu it t o t h e defogger
r ela y a s r equ ir ed.
(3) Wit h t h e n ega t ive lea d of t h e volt m et er, con t a ct
a good body gr ou n d poin t . Th e volt a ge r ea din g sh ou ld
n ot ch a n ge. If OK, go t o St ep 4. If n ot OK, r epa ir t h e
cir cu it t o gr ou n d a s r equ ir ed.
(4) Con n ect t h e n ega t ive lea d of t h e volt m et er t o
t h e r igh t side bu s ba r a n d t ou ch ea ch gr id lin e a t
m idpoin t C wit h t h e posit ive lea d. A r ea din g of
a ppr oxim a t ely six volt s in dica t es a lin e is good. A
r ea din g of zer o volt s in dica t es a br ea k in t h e gr id
lin e bet ween m idpoin t C a n d t h e left side bu s ba r. A
r ea din g of t en t o fou r t een volt s in dica t es a br ea k
bet ween m idpoin t C a n d t h e r igh t side bu s ba r. Move
t h e posit ive lea d on t h e gr id lin e t owa r ds t h e br ea k
a n d t h e volt a ge r ea din g will ch a n ge a s soon a s t h e
br ea k is cr ossed.
DEFOGGER SWITCH
F or cir cu it descr ipt ion s a n d dia gr a m s, r efer t o
8W-48 - Rea r Win dow Defogger in Gr ou p 8W - Wir-
in g Dia gr a m s.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,
REFER
TO
GROUP
8M
-
PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING
WHEEL,
STEERING
COLUMN,
OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Discon n ect a n d isola t e t h e ba t t er y n ega t ive
ca ble. Rem ove t h e a ccessor y swit ch bezel fr om t h e
in st r u m en t pa n el a n d u n plu g t h e defogger swit ch
wir e h a r n ess con n ect or.
(2) Ch eck for con t in u it y bet ween t h e gr ou n d cir-
cu it ca vit y of t h e defogger swit ch wir e h a r n ess con -
n ect or
a n d
a
good
gr ou n d.
Th er e
sh ou ld
be
con t in u it y. If OK, go t o St ep 3. If n ot OK, r epa ir t h e
open cir cu it a s r equ ir ed.
(3) Ch eck for con t in u it y bet ween t h e gr ou n d cir-
cu it t er m in a l a n d t h e r ea r win dow defogger swit ch
sen se cir cu it t er m in a l on t h e ba ck of t h e defogger
swit ch h ou sin g (F ig. 2). Th er e sh ou ld be m om en t a r y
con t in u it y a s t h e defogger swit ch bu t t on is depr essed,
a n d t h en n o con t in u it y. If OK, see t h e dia gn osis for
t h e In st r u m en t Clu st er in t h is gr ou p. If n ot OK,
r epla ce t h e fa u lt y swit ch .
DEFOGGER RELAY
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,
REFER
TO
GROUP
8M
-
PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING
WHEEL,
STEERING
COLUMN,
OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
RELAY TEST
Th e defogger r ela y (F ig. 3) is loca t ed in t h e ju n c-
t ion block, on t h e r igh t cowl side in n er pa n el below
t h e in st r u m en t pa n el in t h e pa ssen ger com pa r t m en t .
Rem ove t h e defogger r ela y fr om t h e ju n ct ion block t o
per for m t h e followin g t est s:
(1) A r ela y in t h e de-en er gized posit ion sh ou ld
h a ve con t in u it y bet ween t er m in a ls 87A a n d 30, a n d
n o con t in u it y bet ween t er m in a ls 87 a n d 30. If OK, go
t o St ep 2. If n ot OK, r epla ce t h e fa u lt y r ela y.
(2) Resist a n ce bet ween t er m in a ls 85 a n d 86 (elec-
t r om a gn et ) sh ou ld be 75
!
10 oh m s. If OK, go t o
St ep 3. If n ot OK, r epla ce t h e fa u lt y r ela y.
(3) Con n ect a ba t t er y t o t er m in a ls 85 a n d 86.
Th er e sh ou ld n ow be con t in u it y bet ween t er m in a ls
30 a n d 87, a n d n o con t in u it y bet ween t er m in a ls 87A
a n d 30. If OK, see t h e Rela y Cir cu it Test in t h is
gr ou p. If n ot OK, r epla ce t h e fa u lt y r ela y.
Fig. 2 Defogger Switch Continuity
8N - 4
ELECTRICALLY HEATED SYSTEMS
X J
DI AGN OSI S AN D T EST I N G (Cont inue d)
Summary of Contents for Cherokee 1999
Page 1: ...HOFRPH WR WKH HHS KHURNHH OHFWURQLF 6HUYLFH 0DQXDO OLFN 2Q 7KH RJR 7R HJLQ...
Page 19: ...Fig 1 Wheel Alignment Measurements 2 2 SUSPENSION XJ GENERAL INFORMATION Continued...
Page 35: ......
Page 53: ...FRONT AXLES DIAGNOSIS 3 18 DIFFERENTIAL AND DRIVELINE XJ DIAGNOSIS AND TESTING Continued...
Page 54: ...DIAGNOSIS CONTINUED XJ DIFFERENTIAL AND DRIVELINE 3 19 DIAGNOSIS AND TESTING Continued...
Page 77: ...Fig 61 Gear Tooth Contact Patterns 3 42 DIFFERENTIAL AND DRIVELINE XJ ADJUSTMENTS Continued...
Page 86: ...DIAGNOSIS CHART XJ DIFFERENTIAL AND DRIVELINE 3 51 DIAGNOSIS AND TESTING Continued...
Page 87: ...DIAGNOSIS CHART CONTINUED 3 52 DIFFERENTIAL AND DRIVELINE XJ DIAGNOSIS AND TESTING Continued...
Page 112: ...Fig 79 Gear Tooth Contact Patterns XJ DIFFERENTIAL AND DRIVELINE 3 77 ADJUSTMENTS Continued...
Page 122: ...DIAGNOSIS CHART XJ DIFFERENTIAL AND DRIVELINE 3 87 DIAGNOSIS AND TESTING Continued...
Page 123: ...DIAGNOSIS CHART CONTINUED 3 88 DIFFERENTIAL AND DRIVELINE XJ DIAGNOSIS AND TESTING Continued...
Page 143: ...Fig 59 Gear Tooth Contact Patterns 3 108 DIFFERENTIAL AND DRIVELINE XJ ADJUSTMENTS Continued...
Page 185: ......
Page 189: ...Clutch Components 6 4 CLUTCH XJ DIAGNOSIS AND TESTING Continued...
Page 243: ......
Page 251: ...COOLING SYSTEM DIAGNOSIS DIESEL ENGINE 7 8 COOLING SYSTEM XJ DIAGNOSIS AND TESTING Continued...
Page 252: ...XJ COOLING SYSTEM 7 9 DIAGNOSIS AND TESTING Continued...
Page 253: ...7 10 COOLING SYSTEM XJ DIAGNOSIS AND TESTING Continued...
Page 254: ...XJ COOLING SYSTEM 7 11 DIAGNOSIS AND TESTING Continued...
Page 255: ...7 12 COOLING SYSTEM XJ DIAGNOSIS AND TESTING Continued...
Page 260: ...SERPENTINE DRIVE BELT DIAGNOSIS XJ COOLING SYSTEM 7 17 DIAGNOSIS AND TESTING Continued...
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Page 979: ...Fig 26 ABS G Sensor 8W 90 34 8W 90 CONNECTOR LOCA TIONS XJ DESCRIPTION AND OPERATION Continued...
Page 980: ...Fig 27 Rear Lamps XJ 8W 90 CONNECTOR LOCA TIONS 8W 90 35 DESCRIPTION AND OPERATION Continued...
Page 983: ...Fig 30 Liftgate 8W 90 38 8W 90 CONNECTOR LOCA TIONS XJ DESCRIPTION AND OPERATION Continued...
Page 993: ......
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Page 1034: ...Oil Lubrication System 2 5L Engine XJ 2 5L ENGINE 9 17 DESCRIPTION AND OPERATION Continued...
Page 1075: ...Oil Lubrication System 4 0L Engine 9 58 4 0L ENGINE XJ DESCRIPTION AND OPERATION Continued...
Page 1116: ...XJ ENGINE 9 3 DIAGNOSIS AND TESTING Continued...
Page 1117: ...9 4 ENGINE XJ DIAGNOSIS AND TESTING Continued...
Page 1118: ...XJ ENGINE 9 5 DIAGNOSIS AND TESTING Continued...
Page 1119: ...9 6 ENGINE XJ DIAGNOSIS AND TESTING Continued...
Page 1120: ...XJ ENGINE 9 7 DIAGNOSIS AND TESTING Continued...
Page 1121: ...9 8 ENGINE XJ DIAGNOSIS AND TESTING Continued...
Page 1122: ...XJ ENGINE 9 9 DIAGNOSIS AND TESTING Continued...
Page 1123: ...9 10 ENGINE XJ DIAGNOSIS AND TESTING Continued...
Page 1124: ...XJ ENGINE 9 11 DIAGNOSIS AND TESTING Continued...
Page 1159: ...SPECIFICATIONS ENGINE SPECIFICA TIONS 9 46 ENGINE XJ...
Page 1160: ...XJ ENGINE 9 47 SPECIFICATIONS Continued...
Page 1171: ......
Page 1188: ...Fig 6 Frame Dimensions XJ FRAME AND BUMPERS 13 7 SPECIFICATIONS Continued...
Page 1281: ......
Page 1293: ...Fig 1 Recirculating Ball Type Gear 19 12 STEERING XJ DESCRIPTION AND OPERATION Continued...
Page 1307: ...SPECIAL TOOLS STEERING LINKAGE Puller C 3894 A Remover Pitman C 4150A 19 26 STEERING XJ...
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Page 1504: ...DIAGNOSIS TABLE XJ TRANSMISSION AND TRANSFER CASE 21 181 DIAGNOSIS AND TESTING Continued...
Page 1600: ...A W 4 TORQUE SPECIFICA TIONS XJ TRANSMISSION AND TRANSFER CASE 21 277 SPECIFICATIONS Continued...
Page 1702: ...Fig 3 Hood Components XJ BODY 23 21 REMOVAL AND INSTALLATION Continued...
Page 1740: ...WELD LOCA TIONS UPPER COWL XJ BODY 23 59 SPECIFICATIONS Continued...
Page 1741: ...UPPER COWL 23 60 BODY XJ SPECIFICATIONS Continued...
Page 1742: ...COWL XJ BODY 23 61 SPECIFICATIONS Continued...
Page 1743: ...A PILLAR 23 62 BODY XJ SPECIFICATIONS Continued...
Page 1744: ...A PILLAR XJ BODY 23 63 SPECIFICATIONS Continued...
Page 1745: ...A PILLAR 23 64 BODY XJ SPECIFICATIONS Continued...
Page 1746: ...A PILLAR XJ BODY 23 65 SPECIFICATIONS Continued...
Page 1747: ...B PILLAR 23 66 BODY XJ SPECIFICATIONS Continued...
Page 1748: ...D PILLAR XJ BODY 23 67 SPECIFICATIONS Continued...
Page 1749: ...FUEL FILLER OPENING 23 68 BODY XJ SPECIFICATIONS Continued...
Page 1750: ...CARGO AREA FLOOR PAN XJ BODY 23 69 SPECIFICATIONS Continued...
Page 1751: ...ROOF AND D PILLAR 23 70 BODY XJ SPECIFICATIONS Continued...
Page 1752: ...LIFTGA TE OPENING XJ BODY 23 71 SPECIFICATIONS Continued...
Page 1753: ...ROOF 23 72 BODY XJ SPECIFICATIONS Continued...
Page 1754: ...ROOF XJ BODY 23 73 SPECIFICATIONS Continued...
Page 1755: ...FRAME RAIL 23 74 BODY XJ SPECIFICATIONS Continued...
Page 1756: ...FRAME RAIL XJ BODY 23 75 SPECIFICATIONS Continued...
Page 1757: ...FRAME RAIL 23 76 BODY XJ SPECIFICATIONS Continued...
Page 1758: ...FRAME RAIL XJ BODY 23 77 SPECIFICATIONS Continued...
Page 1759: ...REINFORCEMENT 23 78 BODY XJ SPECIFICATIONS Continued...
Page 1760: ...FRONT INNER FENDER XJ BODY 23 79 SPECIFICATIONS Continued...
Page 1761: ...FRONT INNER FENDER AND RADIA TOR CLOSURE PANEL 23 80 BODY XJ SPECIFICATIONS Continued...
Page 1762: ...REINFORCEMENT FRONT FENDER XJ BODY 23 81 SPECIFICATIONS Continued...
Page 1763: ...BODY SIDE 23 82 BODY XJ SPECIFICATIONS Continued...
Page 1764: ...REAR WHEELHOUSE XJ BODY 23 83 SPECIFICATIONS Continued...
Page 1765: ...REAR INNER WHEELHOUSE 23 84 BODY XJ SPECIFICATIONS Continued...
Page 1766: ...BODY SIDE XJ BODY 23 85 SPECIFICATIONS Continued...
Page 1767: ...BODY SIDE 23 86 BODY XJ SPECIFICATIONS Continued...
Page 1768: ...BODY SIDE XJ BODY 23 87 SPECIFICATIONS Continued...
Page 1769: ...BODY SIDE 23 88 BODY XJ SPECIFICATIONS Continued...
Page 1770: ...BODY SIDE XJ BODY 23 89 SPECIFICATIONS Continued...
Page 1771: ...BODY SIDE 23 90 BODY XJ SPECIFICATIONS Continued...
Page 1772: ...UNDERBODY XJ BODY 23 91 SPECIFICATIONS Continued...
Page 1773: ...UNDERBODY 23 92 BODY XJ SPECIFICATIONS Continued...
Page 1774: ...UNDERBODY XJ BODY 23 93 SPECIFICATIONS Continued...
Page 1775: ...UNDERBODY 23 94 BODY XJ SPECIFICATIONS Continued...
Page 1776: ...UNDERBODY XJ BODY 23 95 SPECIFICATIONS Continued...
Page 1777: ...UNDERBODY 23 96 BODY XJ SPECIFICATIONS Continued...
Page 1778: ...UNDERBODY XJ BODY 23 97 SPECIFICATIONS Continued...
Page 1779: ...UNDERBODY 23 98 BODY XJ SPECIFICATIONS Continued...
Page 1780: ...UNDERBODY XJ BODY 23 99 SPECIFICATIONS Continued...
Page 1781: ...UNDERBODY 23 100 BODY XJ SPECIFICATIONS Continued...
Page 1782: ...UNDERBODY XJ BODY 23 101 SPECIFICATIONS Continued...
Page 1783: ...BODY SEALING LOCA TIONS APPLICA TION METHODS 23 102 BODY XJ SPECIFICATIONS Continued...
Page 1784: ...COWL AND DASH PANEL XJ BODY 23 103 SPECIFICATIONS Continued...
Page 1785: ...DASH PANEL AND FLOOR PAN 23 104 BODY XJ SPECIFICATIONS Continued...
Page 1786: ...FLOOR PAN XJ BODY 23 105 SPECIFICATIONS Continued...
Page 1787: ...REAR INNER WHEELHOUSE 23 106 BODY XJ SPECIFICATIONS Continued...
Page 1788: ...FRONT INNER WHEELHOUSE XJ BODY 23 107 SPECIFICATIONS Continued...
Page 1789: ...BODY SIDE 23 108 BODY XJ SPECIFICATIONS Continued...
Page 1790: ...BODY SIDE XJ BODY 23 109 SPECIFICATIONS Continued...
Page 1791: ...BODY SIDE 23 110 BODY XJ SPECIFICATIONS Continued...
Page 1792: ...ROOF PANEL XJ BODY 23 111 SPECIFICATIONS Continued...
Page 1793: ...FUEL FILLER HOUSING 23 112 BODY XJ SPECIFICATIONS Continued...
Page 1794: ...LIFTGA TE OPENING XJ BODY 23 113 SPECIFICATIONS Continued...
Page 1795: ...STRUCTURAL ADHESIVE LOCA TIONS LEFT QUARTER PANEL 23 114 BODY XJ SPECIFICATIONS Continued...
Page 1796: ...REAR WHEELHOUSE XJ BODY 23 115 SPECIFICATIONS Continued...
Page 1797: ...ROOF BOWS 23 116 BODY XJ SPECIFICATIONS Continued...
Page 1798: ...BODY GAP AND FLUSH MEASUREMENTS XJ BODY 23 117 SPECIFICATIONS Continued...
Page 1805: ...ENGINE COMPARTMENT 23 124 BODY XJ SPECIFICATIONS Continued...
Page 1807: ...SPECIAL TOOLS BODY Remover Moldings C 4829 23 126 BODY XJ...
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Page 1940: ...FASTENER IDENTIFICATION XJ INTRODUCTION 5 GENERAL INFORMATION Continued...
Page 1941: ...FASTENER STRENGTH 6 INTRODUCTION XJ GENERAL INFORMATION Continued...
Page 1943: ...METRIC CONVERSION 8 INTRODUCTION XJ GENERAL INFORMATION Continued...
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