Dodge Neon / Neon SRT-4. Manual — part 76
(a) Enter Secured Access Mode using the unique
four-digit PIN.
(b) Program the vehicle’s VIN number into the
SKIM’s memory.
(c) Program the country code into the SKIM’s
memory (for North America, choose US or domes-
tic).
(d) The vehicle’s unique Secret Key data will be
retrieved from the PCM automatically. If this data
is corrupt or not present, you will be prompted to
cut new keys for this vehicle.
(3) Program all customer keys into the SKIM’s
memory.
This process will require that the SKIM to be in
the Secured Access Mode. The PIN must be entered
into the DRB III
t scan tool before the SKIM will
enter the Secured Access Mode. Once entered,
Secured Access Mode shall be active until 60 seconds
after the last command requiring secured access was
received and acknowledged.
Two exceptions to this rule are:
• When you have used the ’erase all keys’ com-
mand OR
• When you have just programmed a new key.
If either of these functions are performed success-
fully while in the Secured Access Mode, this mode
will be exited immediately following the function.
NOTE: If a PCM is replaced, the unique ’Secret Key’
data must be transferred from the SKIM to the new
PCM using the PCM replacement procedure. This
procedure requires the Secured Access Mode as
well and can be found in the DRB III
T
scan tool.
REMOVAL
(1) Disconnect and isolate the battery negative
remote cable.
(2) Remove Lower Instrument Panel Cover. Refer
to Body, Instrument Panel, Lower Instrument Panel
Cover, Removal.
(3) Remove the steering column upper and lower
shrouds. Refer to Steering, Column, Column Shroud,
Removal.
(4) Disengage the steering column wire harness
from the Sentry Key Immobilizer Module (SKIM)
(Fig. 15).
(5) Remove the two screws securing the SKIM to
the top of the steering column (Fig. 15).
(6) Rotate the SKIM and its mounting bracket
upwards and then to the side away from the steering
column to slide the SKIM antenna ring from around
the ignition switch lock cylinder housing (Fig. 15).
(7) Remove the SKIM from the vehicle.
INSTALLATION
NOTE: If the SKIM is replaced with a new unit, a
DRB lll
T
scan tool MUST be used to initialize the
new SKIM and to program at least two Sentry Key
transponders (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/SENTRY KEY IMMO-
BILIZER MODULE - STANDARD PROCEDURE).
(1) Place the SKIM into position.
(2) Rotate the SKIM and its mounting bracket
downwards and then to the side towards the steering
column (Fig. 15).
(3) Install the two screws securing the SKIM to
the top of the steering column (Fig. 15).
(4) Engage the steering column wire harness to
the Sentry Key Immobilizer Module (SKIM) (Fig. 15).
(5) Install the steering column upper and lower
shrouds. Refer to Steering, Column, Column Shroud,
Installation.
(6) Install the Lower Instrument Panel Cover.
Refer to Body, Instrument Panel, Lower Instrument
Panel Cover, Installation.
(7) Connect the battery negative cable.
Fig. 15 SENTRY KEY IMMOBILIZER MODULE (SKIM)
REMOVE/INSTALL
1 - IGNITION KEY CYLINDER
2 - STEERING COLUMN
3 - SENTRY KEY IMMOBILIZER MODULE (SKIM)
4 - SKIM CONNECTOR
5 - SKIM ANTENNA
8E - 14
ELECTRONIC CONTROL MODULES
PL/SRT-4
SENTRY KEY IMMOBILIZER MODULE (Continued)
ENGINE SYSTEMS
TABLE OF CONTENTS
page
page
STARTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
BATTERY SYSTEM
TABLE OF CONTENTS
page
page
BATTERY SYSTEM
. . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DIAGNOSIS AND TESTING - BATTERY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
BATTERY
. . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DIAGNOSIS AND TESTING - BATTERY
STANDARD PROCEDURE - USING MICRO
BATTERY TESTER . . . . . . . . . . . . . . . . . . 8
CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
STANDARD PROCEDURE - OPEN-CIRCUIT
VOLTAGE TEST . . . . . . . . . . . . . . . . . . . . . . . 11
STANDARD PROCEDURE - IGNITION-OFF
DRAW TEST . . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . . . . . . . . . . 13
BATTERY HOLDDOWN
. . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . 13
BATTERY CABLES
. . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DIAGNOSIS AND TESTING - BATTERY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
. . . . . . . . . . . . . . . . . . . . . . . . . 15
BATTERY TRAY
. . . . . . . . . . . . . . . . . . . . . . . . . 16
. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
. . . . . . . . . . . . . . . . . . . . . . . . . 16
THERMAL GUARD
. . . . . . . . . . . . . . . . . . . . . . . . . 16
. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
. . . . . . . . . . . . . . . . . . . . . . . . . 17
BATTERY SYSTEM
DESCRIPTION
A single 12-volt battery is standard factory-in-
stalled equipment on this model. All of the compo-
nents of the battery system are located within the
engine compartment of the vehicle. The battery sys-
tem for this vehicle covers the following related com-
ponents, which are covered in further detail later in
this section of the service manual:
• Battery - The storage battery provides a reli-
able means of storing a renewable source of electrical
energy within the vehicle.
• Battery Cables - The battery cables connect
the positive and negatively charged battery terminal
posts to the vehicle electrical system.
PL/SRT-4
ENGINE SYSTEMS
8F - 1
• Battery Holddown - The battery holddown
hardware secures the battery in the battery tray in
the engine compartment.
• Battery Thermal Guard - The battery thermal
guard insulates the battery to protect it from engine
compartment temperature extremes.
• Battery Tray - The battery tray provides a
secure mounting location in the vehicle for the bat-
tery and an anchor point for the battery holddown
hardware.
For battery system maintenance schedules and
jump starting procedure, see the owner’s manual in
the vehicle glove box. Optionally, refer to the Lubri-
cation and Maintenance section of this manual for
the recommended battery maintenance schedules and
for the proper battery jump starting procedure. While
battery charging can be considered a maintenance
procedure,
the
battery
charging
procedure
and
related information are located later in this section of
this service manual. This was done because the bat-
tery must be fully-charged before any battery system
diagnosis or testing procedures can be performed.
OPERATION
The battery system is designed to provide a safe,
efficient, reliable and mobile means of delivering and
storing electrical energy. This electrical energy is
required to operate the engine starting system, as
well as to operate many of the other vehicle acces-
sory systems for limited durations while the engine
and/or the charging system are not operating. The
battery system is also designed to provide a reserve
of electrical energy to supplement the charging sys-
tem for short durations while the engine is running
and the electrical current demands of the vehicle
exceed the output of the charging system. In addition
to delivering, and storing electrical energy for the
vehicle, the battery system serves as a capacitor and
voltage stabilizer for the vehicle electrical system. It
absorbs most abnormal or transient voltages caused
by the switching of any of the electrical components
or circuits in the vehicle.
DIAGNOSIS AND TESTING - BATTERY SYSTEM
The battery, starting, and charging systems in the
vehicle operate with one another and must be tested
as a complete system. In order for the engine to start
and the battery to maintain its charge properly, all of
the components that are used in these systems must
perform within specifications. It is important that
the battery, starting, and charging systems be thor-
oughly tested and inspected any time a battery needs
to be charged or replaced. The cause of abnormal bat-
tery discharge, overcharging or early battery failure
must be diagnosed and corrected before a battery is
replaced and before a vehicle is returned to service.
The service information for these systems has been
separated within this service manual to make it eas-
ier to locate the specific information you are seeking.
However, when attempting to diagnose any of these
systems, it is important that you keep their interde-
pendency in mind.
The diagnostic procedures used for the battery,
starting, and charging systems include the most
basic conventional diagnostic methods, to the more
sophisticated On-Board Diagnostics (OBD) built into
the Powertrain Control Module (PCM). Use of an
induction-type milliampere ammeter, a volt/ohmme-
ter, a battery charger, a carbon pile rheostat (load
tester) and a 12-volt test lamp may be required. All
OBD-sensed systems are monitored by the PCM.
Each monitored circuit is assigned a Diagnostic Trou-
ble Code (DTC). The PCM will store a DTC in elec-
tronic memory for any failure it detects. Refer to
Charging System for the proper charging system on-
board diagnostic test procedures.
MICRO 420 BATTERY TESTER
The
Micro
420
automotive
battery
tester
is
designed to help the dealership technicians diagnose
the cause of a defective battery. Follow the instruc-
tion manual supplied with the tester to properly
diagnose a vehicle. If the instruction manual is not
available refer to the standard procedure in this sec-
tion, which includes the directions for using the
Micro 420 battery tester.
8F - 2
BATTERY SYSTEM
PL/SRT-4
BATTERY SYSTEM (Continued)
BATTERY SYSTEM DIAGNOSIS
CONDITION
POSSIBLE CAUSES
CORRECTION
THE BATTERY SEEMS
WEAK OR DEAD WHEN
ATTEMPTING TO START
THE ENGINE.
1. The electrical system
ignition-off draw is excessive.
1. Refer to the IGNITION-OFF DRAW TEST
Standard Procedure for the proper test
procedures. Repair the excessive ignition-off
draw, as required.
2. The charging system is
faulty.
2. Determine if the charging system is performing
to specifications. Refer to Charging System for
additional charging system diagnosis and testing
procedures. Repair the faulty charging system, as
required.
3. The battery is discharged.
3. Determine the battery state-of-charge using the
Micro 420 battery tester. Refer to the Standard
Procedures in this section for additional test
procedures. Charge the faulty battery, as
required.
4. The battery terminal
connections are loose or
corroded.
4. Refer to Battery Cables for the proper battery
cable diagnosis and testing procedures. Clean
and tighten the battery terminal connections, as
required.
5. The battery has an
incorrect size or rating for
this vehicle.
5. Refer to Battery System Specifications for the
proper size and rating. Replace an incorrect
battery, as required.
6. The battery is faulty.
6. Determine the battery cranking capacity using
the Micro 420 battery tester. Refer to the
Standard Procedures in this section for additional
test procedures. Replace the faulty battery, as
required.
7. The starting system is
faulty.
7. Determine if the starting system is performing
to specifications. Refer to Starting System for the
proper starting system diagnosis and testing
procedures. Repair the faulty starting system, as
required.
8. The battery is physically
damaged.
8. Inspect the battery for loose terminal posts or a
cracked and leaking case. Replace the damaged
battery, as required.
PL/SRT-4
BATTERY SYSTEM
8F - 3
BATTERY SYSTEM (Continued)
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