ignition DODGE NEON 1999 Service Owners Manual

SERVICE PROCEDURES
VEHICLE IMMOBILIZER SYSTEM
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.
NOTE: The following tests may not prove conclu-
sive in the diagnosis of this system. The most reli-
able, efficient, and accurate means to diagnose the
Vehicle Immobilizer System involves the use of a
DRB scan tool. Refer to the Vehicle Theft Security
System menu item on the DRB scan tool for the
procedures.
The vehicle immobilizer system and the Chrysler
Collision Detection (CCD) data bus network should
be diagnosed using the DRB scan tool. The DRB will
allow confirmation that the CCD data bus is func-
tional, that the immobilizer receiver is placing the
proper messages on the CCD data bus, and that the
Powertrain Control Module (PCM) is receiving the
CCD data bus messages. Refer to the Vehicle Theft
Security System menu item on the DRB scan tool for
the procedures. Refer to 8W-39 - Vehicle Theft Secu-
rity System in Group 8W - Wiring Diagrams for com-
plete circuit descriptions and diagrams.
(1) With the ignition switch in the Off position,
depress the Lock or Unlock button of the immobilizer
transmitter. Listen for the immobilizer receiver to
issue an audible chirp (Unlock) or chirps (Lock). If
OK, go to Step 2. If not OK, replace the transmitter
batteries with known good units and repeat Step 1. If
still not OK, go to Step 2.
(2) Check the fuse in the Power Distribution Cen-
ter (PDC). If OK, go to Step 3. If not OK, repair the
shorted circuit or component as required and replace
the faulty fuse.
(3) Disconnect and isolate the battery negative
cable. Unplug the wire harness connector at the
immobilizer receiver. Check for continuity between
the ground circuit cavity of the immobilizer receiver
wire harness connector and a good ground. There
should be continuity. If OK, go to Step 4. If not OK,
repair the open circuit to ground as required.
(4) Connect the battery negative cable. Check for
battery voltage at the fused B(+) circuit cavity of the
immobilizer receiver wire harness connector. If OK,
refer to the Vehicle Theft Security System menu itemon the DRB scan tool for further diagnosis. If not
OK, repair the open circuit to the PDC fuse as
required.REMOVAL AND INSTALLATION
IMMOBILIZER RECEIVER
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) Disconnect and isolate the battery negative
cable.
(2) Remove the Instrument Panel Top Cover and
Cluster Bezel and Right Trim panel. Remove the
receiver from the dash panel above the heater-A/C
housing (Fig. 2).
(3) Unplug the immobilizer receiver from the wire
harness connector.
(4) Reverse the removal procedures to install.
(5) Refer to the Vehicle Theft Security System
menu item on the DRB scan tool for the procedures
to program transmitter vehicle access codes into the
memory of the new immobilizer receiver.
Fig. 2 Immobilizer Receiver Remove/Install
PLIMMOBILIZER SYSTEM 8Q - 3

POWER WINDOWS
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
WINDOW MOTOR TEST................... 1
WINDOW SWITCH TEST.................. 1WIRING TEST........................... 1
REMOVAL AND INSTALLATION
2 DOOR WINDOW MOTOR................ 2
4 DOOR WINDOW MOTOR................ 3
WINDOW SWITCH....................... 2
GENERAL INFORMATION
INTRODUCTION
The window lift motors are of the permanent mag-
net type. A battery positive and negative connection
to either of the two motor terminals will cause the
motor to rotate in one direction. Reversing current
through these same two connections will cause the
motor to rotate in the opposite direction.
Each individual motor is grounded through the
master switch.
DIAGNOSIS AND TESTING
WIRING TEST
The following wiring test determines whether or
not voltage is continuous through the body harness
to switch.
Remove switch for testing. Connect a voltmeter
positive lead to Pin 4 and negative lead to Pin 3 of
the switch connector (Fig. 1). Turn ignition switch to
the ON position. Voltmeter should read battery volt-
age. If OK, go to Window Switch Test. If not OK,
check the 30 amp circuit breaker behind the fuse
block or for a broken wire. For wiring, specific con-
nector type and location, refer to Group 8W, Wiring
Diagrams.
WINDOW SWITCH TEST
Remove the switch from its mounting, refer to the
Window Switch Removal and Installation proce-
dures.. Using an ohmmeter, refer to the test proce-
dures below, Driver Side or Passenger Side Window
Switch Continuity Test to determine if continuity is
correct (Fig. 2) and (Fig. 3). If the results are not
obtained, replace the switch.
WINDOW MOTOR TEST
(1) Remove door trim panel, refer to Group 23
Body for removal procedures.(2) Connect positive (+) lead from a test battery to
either of the two motor terminals.
(3) Connect negative (-) lead from test battery to
remaining motor terminal.
(4) The motor should now rotate in one direction to
either move window up or down.
(a) If window happens to already be in full UP
position and motor is connected so as to move it in
UP direction no movement will be observed.
(b) Likewise, motor connected to move window
in DOWN direction no movement will be observed
if window is already in full DOWN position.
(c) Reverse battery leads in Step 2 and Step 3
and window should now move. If window does not
move, remove motor. See below for motor removal
from vehicle.
(5) If window moved completely up or down, the
test leads should be reversed one more time to com-
plete a full window travel inspection.
(6) If window does not move, check to make sure
that it is free.
Fig. 1 Window Switch Connectors
PLPOWER WINDOWS 8S - 1

POWER MIRRORS
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
MIRROR MOTOR........................ 2
MIRROR SWITCH TEST................... 1REMOVAL AND INSTALLATION
INSIDE MIRROR/READING LAMPS
ASSEMBLY............................ 2
INSIDE MIRROR/READING LAMPS
BULB/LENS........................... 2
MIRROR ASSEMBLY..................... 2
MIRROR SWITCH........................ 2
GENERAL INFORMATION
INTRODUCTION
Electrically operated power mirrors are available
on all car lines. The mirrors are controlled by a sin-
gle switch assembly located on the driver's door trim
panel. The push button rocker switch uses L (left)
and R (right) for mirror selection and a button to
push for the desired direction of mirror movement
(Fig. 1).
The motors which operate the mirrors are part of
the mirror assembly and cannot be replaced sepa-
rately.
All vehicles are equipped with a Ignition-Off Draw
Fuse, and they are disconnected when the vehicles
are originally shipped from the factory. Disconnecting
this fuse will help prevent the battery from discharge
during storage. The fuse is located in Power Distri-
bution Center (PDC) refer to the cover for proper
location.
This fuse is included in the power mirror circuity
and should be checked if the mirrors are inoperative.
DIAGNOSIS AND TESTING
MIRROR SWITCH TEST
(1) Remove power mirror switch from mounting
position.
(2) Disconnect wiring harness at switch connector.
(3) Using an ohmmeter, test for continuity between
the terminals of the switch as shown in the Mirror
Switch Test (Fig. 2).
(4) If test results are not obtained as shown in the
Mirror Switch Test (Fig. 2), replace the switch.
Fig. 1 Power Mirror SwitchFig. 2 Mirror Switch Test
PLPOWER MIRRORS 8T - 1

POWER MIRRORS
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION........................ 1
DIAGNOSIS AND TESTING
MIRROR MOTOR....................... 2MIRROR SWITCH TEST.................. 1
GENERAL INFORMATION
INTRODUCTION
Right Hand Drive (RHD) vehicles may be equipped
with Power Fold Away Mirrors. The mirror is con-
trolled the same way as the Left Hand Drive (LHD)
vehicle. The RHD vehicle has an additional switch in
the switch pod that controls the folding function of
the mirror assembly (Fig. 1).
All vehicles are equipped with a Ignition-Off Draw
Fuse, and they are disconnected when the vehicles
are originally shipped from the factory. Disconnecting
this fuse will help prevent the battery from discharge
during storage. The fuse is located in Power Distri-
bution Center (PDC) refer to the cover for proper
location.
This fuse is included in the power mirror circuity
and should be checked if the mirrors are inoperative.
The RHD vehicle mirror circuitry is powered from
the accessory feed circuit and protected by a 15 amp
circuit breaker and power mirror relay. The relay
provides for the switching of the mirror. The circuit
breaker and mirror relay are located in the inner
door panel wire harness.
DIAGNOSIS AND TESTING
MIRROR SWITCH TEST
(1) Remove power mirror switch from mounting
position.
(2) Disconnect wiring harness at switch connector.
(3) Using an ohmmeter, test for continuity between
the terminals of the switch as shown in the RHD
Power Fold Away Mirror Switch Test (Fig. 2)
(4) If test results are not obtained as shown in
(Fig. 2), replace the switch.
Fig. 1 Power Fold Away Mirror Switch
Fig. 2 Power Fold Away Mirror Switch Test
PLPOWER MIRRORS 8T - 1

CHIME WARNING/REMINDER SYSTEM
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
CHIME SYSTEM CONDITIONS.............. 1
FASTEN SEAT BELTS..................... 1
HEADLAMPS LEFT ON.................... 1KEY LEFT IN IGNITION SWITCH............ 1
REMOVAL AND INSTALLATION
CHIME................................. 2
HEADLAMP SWITCH..................... 2
KEY-IN SWITCH......................... 2
SEAT BELT BUCKLE...................... 2
GENERAL INFORMATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AN
AIRBAG, REFER TO THE AIRBAG PORTION OF
THIS SECTION FOR STEERING WHEEL OR SWITCH
REMOVAL AND INSTALLATION PROCEDURES.
The seat belt reminder system uses both visual
and audible signals. A combined seat belt and key
reminder chime with a red light on the instrument
panel.
The system will always illuminate the seat belt
reminder lamp for four to eight seconds when the
ignition switch is turned to the ON position. The
CHIME will sound during the same time interval if
the driver's seat belt is not fastened. Passenger belts
are not connected to the system. The chime will acti-
vate if the drivers door is opened and:
²The key is in the ignition switch, with the igni-
tion switch in either the OFF or accessory (ACC)
position
²The head lamps are ON.
The chime is part of the instrument cluster.
NOTE: This group covers both Left-Hand Drive
(LHD) and Right-Hand Drive (RHD) versions of this
model. Whenever required and feasible, the RHD
versions of affected vehicle components have been
constructed as mirror-image of the LHD versions.
While most of the illustrations used in this group
represent only the LHD version, the diagnostic and
service procedures outlined can generally be
applied to either version. Exceptions to this rule
have been clearly identified as LHD, RHD, or Export
if a special illustration or procedure is required.
DIAGNOSIS AND TESTING
FASTEN SEAT BELTS
To test the fasten seat belts function, turn the igni-
tion switch to the ON position with the driver's seat
belt unbuckled and fully retracted. The seat belt
warning lamp should light for four to eight seconds
and the tone should sound three to five times.
HEADLAMPS LEFT ON
To test the headlamps left on function:
²Turn headlamps
²Driver's door open
²Key removed from the ignition switch
Chime should sound until headlamps are turned
off or driver's door is closed.
KEY LEFT IN IGNITION SWITCH
To test the key left in ignition function, insert key
into the ignition and open driver's door. Chime
should sound until key is removed from ignition or
driver's door is closed.
CHIME SYSTEM CONDITIONS
The cluster harness connector, J1 is car right and
the J2 is car left.
NO TONE WHEN IGNITION SWITCH IS
TURNED ON AND DRIVERS SEAT BELT IS
UNBUCKLED
(1) Using an ohmmeter, with the seat belt fully
retracted, check for continuity to ground at Pin 4 of
the J1 wire harness connector (Fig. 1). If OK, go to
step 2. If not OK, repair as necessary .
(2) Check for continuity to ground at Pin 8 of the
J1 wire harness connector. If OK, go to Step 3. If not
OK, repair as necessary.
(3) Using voltmeter, check for battery feed at Pin 6
of the J1 wire harness connector. Check for ignition
feed at Pin 5 of the J1 wire harness connector. If not
OK, repair as necessary.
PLCHIME WARNING/REMINDER SYSTEM 8U - 1

NO FASTEN SEAT BELT LAMP WHEN
IGNITION SWITCH IS ON.
(1) Check for burned out lamp.
(2) Check for battery feed at cluster wire harness
connector terminal J1-6 (Fig. 1).
(3) Check for ignition feed at cluster wire harness
connector terminal J1-5. Repair as necessary.
NO TONE WHEN HEADLAMPS ARE ON AND
DRIVERS DOOR IS OPEN
(1) Check left door jamb switch for good ground
when drivers door is open.
(2) Check for ground at J2-5.
(3) Check for battery feed at cluster wire harness
connector terminal J1-6 (Fig. 1).
(4) Check for NO voltage at J1-5. Ignition voltage
must not be present for the chime to work.
(5) Check headlamp switch.
NO TONE WHEN KEY IS LEFT IN IGNITION
AND DRIVERS DOOR IS OPEN
(1) Check for continuity to ground at Pin 8 of the
J1 wire harness connector. If OK, go to Step 3. If not
OK, repair as necessary.(2) Using voltmeter, check for battery feed at Pin 6
of the J1 wire harness connector. Check for NO igni-
tion feed at Pin 5 of the J1 wire harness connector. If
OK, go to Step 3. If not OK, repair as necessary.
(3) Open driver's door and ensure the ignition key
is in the OFF or ACC position. Check for continuity
to ground at Pin 5 of the J2 wire harness connector.
If ground OK, replace cluster printed circuit board. If
no ground, check key-in switch or door switch wiring
and repair as necessary.
CHIMES CONTINUE WHEN HEADLAMPS ARE
TURNED OFF AND/OR KEY IS REMOVED
FROM IGNITION
Check for ground at J2-5. If grounded the chime
should activate. Make sure the door is closed, key is
in ignition and parking lamps are OFF. If ground is
still present check door switch, key in switch, head-
lamp switch and repair as necessary.
REMOVAL AND INSTALLATION
CHIME
The chime is built into the instrument cluster print
circuit board. Refer to Group 8E, Instrument Panel
and Gauges.
SEAT BELT BUCKLE
Refer to Group 23, Body of this service manual.
HEADLAMP SWITCH
Refer to Group 8E, Instrument Panel and Systems.
KEY-IN SWITCH
The Key-in switch is built into the ignition switch
assembly. Should the Key-in switch require service,
the ignition switch assembly must be replaced. Refer
to Group 8D Ignition System of this service manual.
Fig. 1 Cluster Wire Harness Connectors
8U - 2 CHIME WARNING/REMINDER SYSTEMPL
DIAGNOSIS AND TESTING (Continued)

WIRING DIAGRAMS
CONTENTS
page page
AIR CONDITIONING-HEATER.......... 8W-42-1
AIRBAG SYSTEM................... 8W-43-1
ANTI-LOCK BRAKES................. 8W-35-1
AUDIO SYSTEMS................... 8W-47-1
CHARGING SYSTEM................. 8W-20-1
COMPONENT INDEX................. 8W-02-1
CONNECTOR/GROUND LOCATIONS..... 8W-90-1
CONNECTOR PIN-OUTS.............. 8W-80-1
FRONT LIGHTING................... 8W-50-1
FUEL/IGNITION SYSTEMS............ 8W-30-1
FUSE BLOCK....................... 8W-11-1
GENERAL INFORMATION............. 8W-01-1
GROUND DISTRIBUTION............. 8W-15-1
HORN/CIGAR LIGHTER............... 8W-41-1INSTRUMENT CLUSTER.............. 8W-40-1
INTERIOR LIGHTING................. 8W-44-1
POWER DISTRIBUTION.............. 8W-10-1
POWER DOOR LOCKS............... 8W-61-1
POWER MIRRORS.................. 8W-62-1
POWER SUNROOF.................. 8W-64-1
POWER WINDOWS.................. 8W-60-1
REAR LIGHTING.................... 8W-51-1
REAR WINDOW DEFOGGER........... 8W-48-1
SPLICE INFORMATION............... 8W-70-1
SPLICE LOCATIONS................. 8W-95-1
STARTING SYSTEM................. 8W-21-1
TURN SIGNALS..................... 8W-52-1
WIPERS........................... 8W-53-1
PLWIRING DIAGRAMS 8W - 1

8W-01 GENERAL INFORMATION
INDEX
page page
DESCRIPTION AND OPERATION
CIRCUIT FUNCTIONS..................... 4
CIRCUIT INFORMATION................... 4
CONNECTOR INFORMATION............... 7
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE DEVICES.................... 8
INTRODUCTION......................... 1
NOTES, CAUTIONS, and WARNINGS......... 7
SECTION IDENTIFICATION................. 5
SPLICE LOCATIONS...................... 7
SYMBOLS.............................. 5
TAKE OUTS............................. 8
TERMINOLOGY.......................... 7
DIAGNOSIS AND TESTING
INTERMITTENT AND POOR CONNECTIONS.... 9TROUBLESHOOTING TESTS................ 9
TROUBLESHOOTING TOOLS............... 8
TROUBLESHOOTING WIRING PROBLEMS.... 10
SERVICE PROCEDURES
CONNECTOR AND TERMINAL REPLACEMENT . 12
CONNECTOR REPLACEMENT.............. 12
DIODE REPLACEMENT................... 14
TERMINAL REPLACEMENT................ 13
TERMINAL/CONNECTOR REPAIR-MOLEX
CONNECTORS........................ 10
TERMINAL/CONNECTOR REPAIRÐTHOMAS
AND BETTS CONNECTORS.............. 11
WIRING REPAIR........................ 10
SPECIAL TOOLS
WIRING/TERMINAL...................... 15
DESCRIPTION AND OPERATION
INTRODUCTION
Chrysler wiring diagrams are designed to provide
information regarding the vehicles wiring content. In
order to effectively use Chrysler wiring diagrams to
diagnose and repair a Chrysler vehicle, it is impor-
tant to understand all of their features and charac-
teristics.
Diagrams are arranged such that the power (B+)
side of the circuit is placed near the top of the page,
and the ground (B-) side of the circuit is placed near
the bottom of the page.
All switches, components, and modules are shown
in the at rest position with the doors closed and the
key removed from the ignition.Components are shown two ways. A solid line
around a component indicates that the component is
complete. A dashed line around a component indi-
cates that the component being shown is not com-
plete. Incomplete components have a reference
number to indicate the page where the component is
shown complete.
It is important to realize that no attempt is made
on the diagrams to represent components and wiring
as they appear on the vehicle. For example, a short
piece of wire is treated the same as a long one. In
addition, switches and other components are shown
as simply as possible, with regard to function only.
PL8W - 01 GENERAL INFORMATION 8W - 01 - 1

CIRCUIT INFORMATION
Each wire shown in the diagrams contains a code
which identifies the main circuit, part of the main
circuit, gage of wire, and color (Fig. 1)
CIRCUIT FUNCTIONS
All circuits in the diagrams use an alpha/numeric
code to identify the wire and its function. To identify
which circuit code applies to a system, refer to the
Circuit Identification Code Chart. This chart shows
the main circuits only and does not show the second-
ary codes that may apply to some models.
Fig. 1 Wire Code Identification
COLOR CODE COLORSTANDARD
TRACER
COLOR
BL BLUE WT
BK BLACK WT
BR BROWN WT
DB DARK BLUE WT
DG DARK GREEN WT
GY GRAY BK
LB LIGHT BLUE BK
LG LIGHT GREEN BK
OR ORANGE BK
PK PINK BK or WT
RD RED WT
TN TAN WT
VT VIOLET WT
WT WHITE BK
YL YELLOW BK
* WITH TRACER
CIRCUIT FUNCTION
A BATTERY FEED
B BRAKE CONTROLS
C CLIMATE CONTROLS
D DIAGNOSTIC CIRCUITS
E DIMMING ILLUMINATION CIRCUITS
F FUSED CIRCUITS
G MONITORING CIRCUITS (GAUGES)
H OPEN
I NOT USED
J OPEN
K POWERTRAIN CONTROL MODULE
L EXTERIOR LIGHTING
M INTERIOR LIGHTING
N NOT USED
O NOT USED
P POWER OPTION (BATTERY FEED)
Q POWER OPTIONS (IGNITION FEED)
R PASSIVE RESTRAINT
S SUSPENSION/STEERING
T TRANSMISSION/TRANSAXLE/
TRANSFER CASE
U OPEN
V SPEED CONTROL, WIPER/WASHER
W OPEN
X AUDIO SYSTEMS
Y OPEN
Z GROUNDS
8W - 01 - 4 8W - 01 GENERAL INFORMATIONPL
DESCRIPTION AND OPERATION (Continued)

WARNING: BE SURE THAT THE IGNITION SWITCH
ALWAYS IS IN THE OFF POSITION, UNLESS THE
PROCEDURE REQUIRES IT TO BE ON.
WARNING: SET THE PARKING BRAKE WHEN
WORKING ON ANY VEHICLE. AN AUTOMATIC
TRANSMISSION SHOULD BE IN PARK. A MANUAL
TRANSMISSION SHOULD BE IN NEUTRAL.
WARNING: OPERATE THE ENGINE ONLY IN A
WELL-VENTILATED AREA.
WARNING: KEEP AWAY FROM MOVING PARTS
WHEN THE ENGINE IS RUNNING, ESPECIALLY THE
FAN AND BELTS.
WARNING: TO PREVENT SERIOUS BURNS, AVOID
CONTACT WITH HOT PARTS SUCH AS THE RADIA-
TOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATA-
LYTIC CONVERTER, AND MUFFLER.
WARNING: DO NOT ALLOW FLAME OR SPARKS
NEAR THE BATTERY. GASES ARE ALWAYS
PRESENT IN AND AROUND THE BATTERY.
WARNING: ALWAYS REMOVE RINGS, WATCHES,
LOOSE HANGING JEWELRY, AND LOOSE CLOTH-
ING.
TAKE OUTS
The abbreviation T/O is used in the component
location section to indicate a point in which the wir-
ing harness branches out to a component.
ELECTROSTATIC DISCHARGE (ESD) SENSITIVE
DEVICES
All ESD sensitive components are solid state and a
symbol (Fig. 4) is used to indicate this. When han-
dling any component with this symbol comply with
the following procedures to reduce the possibility of
electrostatic charge build up on the body and inad-
vertent discharge into the component. If it is not
known whether the part is ESD sensitive, assume
that it is.
(1) Always touch a known good ground before han-
dling the part. This should be repeated while han-
dling the part and more frequently after sliding
across a seat, sitting down from a standing position,
or walking a distance.
(2) Avoid touching electrical terminals of the part,
unless instructed to do so by a written procedure.(3) When using a voltmeter, be sure to connect the
ground lead first.
(4) Do not remove the part from its protective
packing until it is time to install the part.
(5) Before removing the part from its package,
ground the package to a known good ground on the
vehicle.
DIAGNOSIS AND TESTING
TROUBLESHOOTING TOOLS
When diagnosing a problem in an electrical circuit
there are several common tools necessary. These tools
are listed and explained below.
²Jumper Wire - This is a test wire used to con-
nect two points of a circuit. It can be used to bypass
an open in a circuit.
WARNING: NEVER USE A JUMPER WIRE ACROSS
A LOAD, SUCH AS A MOTOR, CONNECTED
BETWEEN A BATTERY FEED AND GROUND.
²Voltmeter - Used to check for voltage on a cir-
cuit. Always connect the black lead to a known good
ground and the red lead to the positive side of the
circuit.
CAUTION: Most of the electrical components used
in today's vehicle are solid state. When checking
voltages in these circuits use a meter with a 10-me-
gohm or greater impedance rating.
²Ohmmeter - Used to check the resistance
between two points of a circuit. Low or no resistance
in a circuit means good continuity.
CAUTION: - Most of the electrical components used
in today's vehicle are Solid State. When checking
resistance in these circuits use a meter with a 10-
megohm or greater impedance rating. In addition,
make sure the power is disconnected from the cir-
cuit. Circuits that are powered up by the vehicle
electrical system can cause damage to the equip-
ment and provide false readings.
Fig. 4 Electrostatic Discharge Symbol
8W - 01 - 8 8W - 01 GENERAL INFORMATIONPL
DESCRIPTION AND OPERATION (Continued)