Chrysler RAM TRUCK 2500 1994 Service Manual page 328

•
Fig. 7 Test Starter Motor Ground (Typical)
• park/neutral position switch (automatic transmis­
sion)
• clutch switch (manual transmission)
• all their wiring and connections.
Testing procedures for these components are as fol­
lows and should be followed i n order as described.
CAUTION: Before performing any test, remove A S D
relay from P D C (gas engine) or unplug fuel shut­
down solenoid connector (diesel engine) to prevent
engine from starting.
S T A R T E R RELAY CONNECTIONS
GROUND SOLENOID
(85) TERMINAL
(87)
J928B-1
S T A R T E R R E L A Y
OPERATION/TESTING
The starter relay is i n the power distribution cen­
ter (PDCXFig. 8). Refer to the underside of the PDC
cover for relay location.
OPERATION
• The battery terminal (30) is usually connected to
battery voltage and can be switched or B + at all
times.
ELECTRICAL 8A - 13
• Terminal 87A is connected to terminal 30 i n the
de-energized position.
• The solenoid terminal (87) is connected to the bat­
tery terminal (30) i n the energized position, which
supplies battery voltage to the operated device.
• The ignition terminal (86) is connected to the elec­
tromagnet and usually connected to a switched power
source.
• The ground terminal (85) is connected to the elec­
tromagnet and is usually grounded by a switch or the
PCM.
TESTING
Remove relay from PDC to perform the following
tests.
• A relay i n the de-energized position should have
continuity between terminal 87A and terminal 30.
• Resistance value between terminals 85 and 86
(electromagnet) is 75 ±5 ohms.
• Connect a battery to terminals 85 and 86. There
should be continuity between terminals 30 and 87.
Fig. 8 Power Distribution Center
IGNITION SWITCH TEST
After testing starter solenoid and relay and they
check out OK, trouble is probably with ignition
switch or its wiring.
Check all wiring for opens and shorts, and connec­
tions for being loose or corroded.