OPERATION
•
Terminal number 30 is connected to battery volt-
age. For both the ASD and fuel pump relays, termi-
nal 30 is connected to battery voltage at all times.
•
The PCM grounds the coil side of the relay
through terminal number 85.
•
Terminal number 86 supplies voltage to the coil
side of the relay.
•
When the PCM de-energizes the ASD and fuel
pump relays, terminal number 87A connects to termi-
nal 30. This is the Off position. In the off position,
voltage is not supplied to the rest of the circuit. Ter-
minal 87A is the center terminal on the relay.
•
When the PCM energizes the ASD and fuel
pump relays, terminal 87 connects to terminal 30.
This is the On position. Terminal 87 supplies voltage
to the rest of the circuit.
TESTING
The following procedure applies to the ASD and
fuel pump relays.
(1) Remove relay from connector before testing.
(2) With the relay removed from the vehicle, use
an ohmmeter to check the resistance between termi-
nals 85 and 86. The resistance should be between 75
6
5 ohms.
(3) Connect the ohmmeter between terminals 30
and 87A. The ohmmeter should show continuity
between terminals 30 and 87A.
(4) Connect the ohmmeter between terminals 87
and 30. The ohmmeter should not show continuity at
this time.
(5) Connect one end of a jumper wire (16 gauge or
smaller) to relay terminal 85. Connect the other end
of the jumper wire to the ground side of a 12 volt
power source.
(6) Connect one end of another jumper wire (16
gauge or smaller) to the power side of the 12 volt
power source. Do not attach the other end of the
jumper wire to the relay at this time.
WARNING: DO NOT ALLOW OHMMETER TO CON-
TACT TERMINALS 85 OR 86 DURING THIS TEST.
(7) Attach the other end of the jumper wire to
relay terminal 86. This activates the relay. The ohm-
meter should now show continuity between relay ter-
minals 87 and 30. The ohmmeter should not show
continuity between relay terminals 87A and 30.
(8) Disconnect jumper wires.
(9) Replace the relay if it did not pass the continu-
ity and resistance tests. If the relay passed the tests,
it operates properly. Check the remainder of the ASD
and fuel pump relay circuits. Refer to the Wiring
Diagrams.
THROTTLE BODY MINIMUM AIR FLOW CHECK
PROCEDURE
The following test procedure has been developed to
check throttle body calibrations for correct idle condi-
tions. The procedure should be used to diagnose the
throttle body for conditions that may cause idle prob-
lems. This procedure should be used only after
normal diagnostic procedures have failed to
produce results that indicate a throttle body
related problem. Be sure to check for proper
operation of the idle air control motor before
performing this test.
A special fixed orifice tool (number 6714) (Fig. 20)
must be used for the following test. This tool has a
fixed internal diameter of 0.185”.
TERMINAL LEGEND
NUMBER
IDENTIFICATION
30
COMMON FEED
85
COIL GROUND
86
COIL BATTERY
87
NORMALLY OPEN
87A
NORMALLY CLOSED
Fig. 19 ASD and Fuel Pump Relay Terminals—
Type 2
Fig. 20 6714 Fixed Orifice Tool
14 - 42
FUEL SYSTEM
XJ
DIAGNOSIS AND TESTING (Continued)
Summary of Contents for 200 Cherokee
Page 5: ...FASTENER IDENTIFICATION 4 INTRODUCTION XJ DESCRIPTION AND OPERATION Continued ...
Page 6: ...FASTENER STRENGTH XJ INTRODUCTION 5 DESCRIPTION AND OPERATION Continued ...
Page 8: ...METRIC CONVERSION CHART XJ INTRODUCTION 7 DESCRIPTION AND OPERATION Continued ...
Page 9: ...TORQUE SPECIFICATIONS 8 INTRODUCTION XJ DESCRIPTION AND OPERATION Continued ...
Page 47: ......
Page 107: ...Fig 105 Gear Tooth Contact Patterns 3 60 TUBE 181 AND 186 FBI AXLE XJ ADJUSTMENTS Continued ...
Page 111: ...Installer D 144 Installer W 262 3 64 TUBE 181 AND 186 FBI AXLE XJ SPECIAL TOOLS Continued ...
Page 145: ...Fig 79 Gear Tooth Contact Patterns 3 98 194 RBI AXLE XJ ADJUSTMENTS Continued ...
Page 177: ...Fig 59 Gear Tooth Contact Patterns 3 130 8 1 4 REAR AXLE XJ ADJUSTMENTS Continued ...
Page 230: ...Fig 8 Clutch Components And Inspection XJ CLUTCH 6 5 DIAGNOSIS AND TESTING Continued ...
Page 241: ......
Page 357: ......
Page 367: ......
Page 449: ......
Page 451: ......
Page 475: ......
Page 484: ...SPECIAL TOOLS HEADLAMP ALIGNMENT Headlamp Aiming Kit C 4466 A XJ LAMPS 8L 9 ...
Page 507: ......
Page 537: ......
Page 551: ......
Page 571: ......
Page 577: ......
Page 583: ......
Page 613: ......
Page 615: ......
Page 631: ......
Page 669: ......
Page 707: ......
Page 735: ......
Page 783: ......
Page 789: ......
Page 805: ......
Page 823: ......
Page 827: ......
Page 851: ......
Page 863: ......
Page 867: ......
Page 893: ......
Page 921: ......
Page 925: ......
Page 931: ......
Page 937: ......
Page 1047: ......
Page 1072: ...Fig 16 2 5L Engine XJ 8W 90 CONNECTOR LOCATIONS 8W 90 25 DESCRIPTION AND OPERATION Continued ...
Page 1073: ...Fig 17 4 0L Engine 8W 90 26 8W 90 CONNECTOR LOCATIONS XJ DESCRIPTION AND OPERATION Continued ...
Page 1074: ...Fig 18 4 0L Engine XJ 8W 90 CONNECTOR LOCATIONS 8W 90 27 DESCRIPTION AND OPERATION Continued ...
Page 1087: ...Fig 31 Liftgate 8W 90 40 8W 90 CONNECTOR LOCATIONS XJ DESCRIPTION AND OPERATION Continued ...
Page 1099: ......
Page 1129: ......
Page 1249: ......
Page 1331: ...Fig 6 Frame Dimensions 13 8 FRAME AND BUMPERS XJ SPECIFICATIONS Continued ...
Page 1333: ......
Page 1335: ......
Page 1869: ......
Page 1875: ......
Page 1887: ......
Page 1912: ...Fig 3 Hood Components XJ BODY 23 25 REMOVAL AND INSTALLATION Continued ...
Page 1955: ...WELD LOCATIONS UPPER COWL 23 68 BODY XJ SPECIFICATIONS Continued ...
Page 1956: ...UPPER COWL XJ BODY 23 69 SPECIFICATIONS Continued ...
Page 1957: ...COWL 23 70 BODY XJ SPECIFICATIONS Continued ...
Page 1958: ...A PILLAR XJ BODY 23 71 SPECIFICATIONS Continued ...
Page 1959: ...A PILLAR 23 72 BODY XJ SPECIFICATIONS Continued ...
Page 1960: ...A PILLAR XJ BODY 23 73 SPECIFICATIONS Continued ...
Page 1961: ...A PILLAR 23 74 BODY XJ SPECIFICATIONS Continued ...
Page 1962: ...B PILLAR XJ BODY 23 75 SPECIFICATIONS Continued ...
Page 1963: ...D PILLAR 23 76 BODY XJ SPECIFICATIONS Continued ...
Page 1964: ...FUEL FILLER OPENING XJ BODY 23 77 SPECIFICATIONS Continued ...
Page 1965: ...CARGO AREA FLOOR PAN 23 78 BODY XJ SPECIFICATIONS Continued ...
Page 1966: ...ROOF AND D PILLAR XJ BODY 23 79 SPECIFICATIONS Continued ...
Page 1967: ...LIFTGATE OPENING 23 80 BODY XJ SPECIFICATIONS Continued ...
Page 1968: ...ROOF XJ BODY 23 81 SPECIFICATIONS Continued ...
Page 1969: ...ROOF 23 82 BODY XJ SPECIFICATIONS Continued ...
Page 1970: ...FRAME RAIL XJ BODY 23 83 SPECIFICATIONS Continued ...
Page 1971: ...FRAME RAIL 23 84 BODY XJ SPECIFICATIONS Continued ...
Page 1972: ...FRAME RAIL XJ BODY 23 85 SPECIFICATIONS Continued ...
Page 1973: ...FRAME RAIL 23 86 BODY XJ SPECIFICATIONS Continued ...
Page 1974: ...REINFORCEMENT XJ BODY 23 87 SPECIFICATIONS Continued ...
Page 1975: ...FRONT INNER FENDER 23 88 BODY XJ SPECIFICATIONS Continued ...
Page 1976: ...FRONT INNER FENDER AND RADIATOR CLOSURE PANEL XJ BODY 23 89 SPECIFICATIONS Continued ...
Page 1977: ...REINFORCEMENT 23 90 BODY XJ SPECIFICATIONS Continued ...
Page 1978: ...FRONT FENDER XJ BODY 23 91 SPECIFICATIONS Continued ...
Page 1979: ...BODY SIDE 23 92 BODY XJ SPECIFICATIONS Continued ...
Page 1980: ...REAR WHEELHOUSE XJ BODY 23 93 SPECIFICATIONS Continued ...
Page 1981: ...REAR INNER WHEELHOUSE 23 94 BODY XJ SPECIFICATIONS Continued ...
Page 1982: ...BODY SIDE XJ BODY 23 95 SPECIFICATIONS Continued ...
Page 1983: ...BODY SIDE 23 96 BODY XJ SPECIFICATIONS Continued ...
Page 1984: ...BODY SIDE XJ BODY 23 97 SPECIFICATIONS Continued ...
Page 1985: ...BODY SIDE 23 98 BODY XJ SPECIFICATIONS Continued ...
Page 1986: ...BODY SIDE XJ BODY 23 99 SPECIFICATIONS Continued ...
Page 1987: ...BODY SIDE 23 100 BODY XJ SPECIFICATIONS Continued ...
Page 1988: ...UNDERBODY XJ BODY 23 101 SPECIFICATIONS Continued ...
Page 1989: ...UNDERBODY 23 102 BODY XJ SPECIFICATIONS Continued ...
Page 1990: ...UNDERBODY XJ BODY 23 103 SPECIFICATIONS Continued ...
Page 1991: ...UNDERBODY 23 104 BODY XJ SPECIFICATIONS Continued ...
Page 1992: ...UNDERBODY XJ BODY 23 105 SPECIFICATIONS Continued ...
Page 1993: ...UNDERBODY 23 106 BODY XJ SPECIFICATIONS Continued ...
Page 1994: ...UNDERBODY XJ BODY 23 107 SPECIFICATIONS Continued ...
Page 1995: ...UNDERBODY 23 108 BODY XJ SPECIFICATIONS Continued ...
Page 1996: ...UNDERBODY XJ BODY 23 109 SPECIFICATIONS Continued ...
Page 1997: ...UNDERBODY 23 110 BODY XJ SPECIFICATIONS Continued ...
Page 1998: ...UNDERBODY XJ BODY 23 111 SPECIFICATIONS Continued ...
Page 1999: ...BODY SEALING LOCATIONS APPLICATION METHODS 23 112 BODY XJ SPECIFICATIONS Continued ...
Page 2000: ...COWL AND DASH PANEL XJ BODY 23 113 SPECIFICATIONS Continued ...
Page 2001: ...DASH PANEL AND FLOOR PAN 23 114 BODY XJ SPECIFICATIONS Continued ...
Page 2002: ...FLOOR PAN XJ BODY 23 115 SPECIFICATIONS Continued ...
Page 2003: ...REAR INNER WHEELHOUSE 23 116 BODY XJ SPECIFICATIONS Continued ...
Page 2004: ...FRONT INNER WHEELHOUSE XJ BODY 23 117 SPECIFICATIONS Continued ...
Page 2005: ...BODY SIDE 23 118 BODY XJ SPECIFICATIONS Continued ...
Page 2006: ...BODY SIDE XJ BODY 23 119 SPECIFICATIONS Continued ...
Page 2007: ...BODY SIDE 23 120 BODY XJ SPECIFICATIONS Continued ...
Page 2008: ...ROOF PANEL XJ BODY 23 121 SPECIFICATIONS Continued ...
Page 2009: ...FUEL FILLER HOUSING 23 122 BODY XJ SPECIFICATIONS Continued ...
Page 2010: ...LIFTGATE OPENING XJ BODY 23 123 SPECIFICATIONS Continued ...
Page 2011: ...STRUCTURAL ADHESIVE LOCATIONS LEFT QUARTER PANEL 23 124 BODY XJ SPECIFICATIONS Continued ...
Page 2012: ...REAR WHEELHOUSE XJ BODY 23 125 SPECIFICATIONS Continued ...
Page 2013: ...ROOF BOWS 23 126 BODY XJ SPECIFICATIONS Continued ...
Page 2023: ......
Page 2071: ......