Jeep 200 Cherokee, Service Manual

Page: 352 / 2119

RELAY CIRCUIT TEST
(1) The relay common feed terminal cavity (30) is
connected to battery voltage and should be hot at all
times. If OK, go to Step 2. If not OK, repair the open
circuit to the fused B(+) fuse in the PDC as required.
(2) The relay normally closed terminal (87A) is
connected to terminal 30 in the de-energized position,
but is not used for this application. Go to Step 3.
(3) The relay normally open terminal (87) is con-
nected to the common feed terminal (30) in the ener-
gized position. This terminal supplies battery voltage
to the starter solenoid field coil. There should be con-
tinuity between the cavity for relay terminal 87 and
the starter solenoid terminal at all times. If OK, go
to Step 4. If not OK, repair the open engine starter
motor relay output circuit to the starter solenoid as
required.
(4) The coil battery terminal (86) is connected to
the electromagnet in the relay. It is energized when
the ignition switch is held in the Start position. On
vehicles with a manual transmission, the clutch
pedal must be blocked in the fully depressed position
for this test. Check for battery voltage at the cavity
for relay terminal 86 with the ignition switch in the
Start position, and no voltage when the ignition
switch is released to the On position. If OK, go to
Step 5. If not OK with a manual transmission, dis-
connect the clutch pedal position switch wire harness
connector and install a jumper wire between the two
cavities in the body half of the connector and check
for battery voltage again at the cavity for relay ter-
minal 86. If now OK, replace the faulty clutch pedal
position switch. If still not OK with a manual trans-
mission or if not OK with an automatic transmission,
check for an open or shorted fused ignition switch
output (start) circuit to the ignition switch and
repair, as required. If the fused ignition switch out-
put (start) circuit is OK, refer to Ignition Switch
and Key Lock Cylinder in the index of this service
manual for the location of the proper ignition switch
diagnosis and testing procedures.
(5) The coil ground terminal (85) is connected to
the electromagnet in the relay. On vehicles with a
manual transmission, it is grounded at all times. On
vehicles
with an automatic transmission, it is
grounded through the park/neutral position switch
only when the gearshift selector lever is in the Park
or Neutral positions. Check for continuity to ground
at the cavity for relay terminal 85. If not OK with a
manual transmission, repair the open park/neutral
position switch sense circuit to ground as required. If
not OK with an automatic transmission, check for an
open or shorted park/neutral position switch sense
circuit to the park/neutral position switch and repair,
as required. If the park/neutral position switch sense
circuit checks OK, refer to Park/Neutral Position
Switch in the index of this service manual for the
location of the proper park/neutral position switch
diagnosis and testing procedures.
REMOVAL AND INSTALLATION
STARTER MOTOR
REMOVAL
2.5L ENGINE
(1) Disconnect and isolate the battery negative
cable.
(2) Raise and support the vehicle.
(3) While supporting the starter motor with one
hand, use the other hand to remove the two screws
that secure the starter motor to the engine block
(Fig. 14).
(4) Lower the starter motor from the engine block
far enough to access and remove the nut that secures
the battery positive cable eyelet terminal to the
starter solenoid B(+) terminal stud (Fig. 15). Always
support the starter motor during this process. Do not
let the starter motor hang from the wire harness.
(5) Remove the battery positive cable eyelet termi-
nal from the starter solenoid B(+) terminal stud.
Always support the starter motor during this process.
Do not let the starter motor hang from the wire har-
ness.
TERMINAL LEGEND
NUMBER IDENTIFICATION
30 COMMON FEED
85 COIL GROUND
86 COIL BATTERY
87 NORMALLY OPEN
87A NORMALLY CLOSED
Fig. 13 Starter Relay
XJ
STARTING SYSTEMS 8B - 11
DIAGNOSIS AND TESTING (Continued)