Dodge 2000 DURANGO Service Manual page 273

DN
DIAGNOSIS AND TESTING (Continued)
INSPECTION
For complete circuit diagrams, refer to Starting
System in the Contents of Group 8W - Wiring Dia-
grams. Before removing any unit from the starting
system for repair or diagnosis, perform the following
inspections:
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL,
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
• Battery - Visually inspect the battery for indi-
cations of physical damage and loose or corroded
cable connections. Determine the state-of-charge and
cranking capacity of the battery. Charge or replace
the battery, if required. Refer to Battery in the
proper section of Group 8A - Battery for complete ser-
vice information for the battery.
• Ignition Switch - Visually inspect the ignition
switch for indications of physical damage and loose
or corroded wire harness connections. Refer to Igni-
tion Switch and Key Lock Cylinder in the proper
section of Group 8D - Ignition System for complete
service information for the ignition switch.
•
Park/Neutral Position Switch - Visually
inspect the park/neutral position switch for indica-
tions of physical damage and loose or corroded wire
harness connections. Refer to Park/Neutral Posi-
tion Switch in the proper section of Group 21 -
Transmission for complete service information for the
park/neutral position switch.
•
Starter Relay - Visually inspect the starter
relay for indications of physical damage and loose or
corroded wire harness connections.
•
Starter Motor - Visually inspect the starter
motor for indications of physical damage and loose or
corroded wire harness connections.
• Starter Solenoid - Visually inspect the starter
solenoid for indications of physical damage and loose
or corroded wire harness connections.
• Wiring - Visually inspect the wire harnesses for
damage. Repair or replace any faulty wiring, as
required. Refer to the proper section of Group 8W -
Wiring Diagrams for complete service information
and circuit diagrams for the starting system wiring
components.
GROUP 8M - PASSIVE
STEERING COLUMN,
TESTING
COLD CRANKING TEST
For complete circuit diagrams, refer to Starting
System in the Contents of Group 8W - Wiring Dia-
grams. The battery must be fully-charged and load-
tested before proceeding. Refer to Battery in the
Diagnosis and Testing section of Group 8A - Battery
for the procedures.
(1) Connect a suitable volt-ampere tester to the
OR
battery terminals (Fig. 1). See the instructions pro-
vided by the manufacturer of the volt-ampere tester
being used.
Fig. 1 Volts-Amps Tester Connections - Typical
1 – POSITIVE CLAMP
2 – NEGATIVE CLAMP
3 – INDUCTION AMMETER CLAMP
(2) Fully engage the parking brake.
(3) Place the automatic transmission gearshift
selector lever in the Park position.
(4) Verify that all lamps and accessories are
turned off.
(5) To prevent the engine from starting, remove
the Automatic ShutDown (ASD) relay. The ASD relay
is located in the Power Distribution Center (PDC), in
the engine compartment. Refer to the fuse and relay
layout label affixed to the underside of the PDC cover
for ASD relay identification and location.
(6) Rotate and hold the ignition switch in the Start
position. Note the cranking voltage and current
(amperage) draw readings shown on the volt-ampere
tester.
(a) If the voltage reads below 9.6 volts, refer to
Starter Motor in the Diagnosis and Testing sec-
tion of this group. If the starter motor is OK, refer
to Engine Diagnosis in the Diagnosis and Testing
section of Group 9 - Engine for further testing of
the engine. If the starter motor is not OK, replace
the faulty starter motor.
STARTING SYSTEMS 8B - 5