Leads ISUZU TF SERIES 2004 Workshop Manual

SUPPLEMENTAL RESTRAINT SYSTEM 9A-17

Air Bag Assembly Scrapping Procedure
During the course of a vehicle's useful life, certain
situations may arise which will necessitate the disposal
of a live (undeployed) air bag assembly. This
information covers proper procedures for disposing of
a live air bag assembly.
Before a live air bag assembly can be disposed of, it
must be deployed. A live air bag assembly must not
be disposed of through normal refuse channels.
WARNING: FAILURE TO FOLLOW PROPE
R
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR
BAG ASSEMBLY DISPOSAL PROCEDURES CAN
RESULT IN AIR BAG DEPLOYMENT WHICH MAY
CAUSE PERSONAL INJURY. AN UNDEPLOYED
AIR BAG ASSEMBLY MUST NOT BE DISPOSED
OF THROUGH NORMAL REFUSE CHANNELS.
THE UNDEPLOYED AIR BAG ASSEMBLY
CONTAINS SUBSTANCES THAT CAN CAUSE
SEVERE ILLNESS OR PERSONAL INJURY IF THE
SEALED CONTAINER IS DAMAGED DURING
DISPOSAL. DISPOSAL IN ANY MANNE
R
INCONSISTENT WITH PROPER PROCEDURES
MAY BE A VIOLATION OF FEDERAL, STATE, AND
/
OR LOCAL LAW.
In situations which require deployment of a live air bag
assembly, deployment may be accomplished inside or
outside the vehicle. The method employed depends
upon the final disposition of the particular vehicle, as
noted in “Deployment Outside Vehicle” and
“Deployment Inside Vehicle” in this section.

Deployment Outside Vehicle (Driver Air
Bag Assembly)
Deployment outside the vehicle is proper when the
vehicle is to be returned to service. This includes, for
example, situations in which the vehicle will be
returned to useful service after a functionally or
cosmetically deficient air bag assembly is replaced.
Deployment and disposal of a malfunctioning air bag
assembly is, of course, subject to any required
retention period.
For deployment of a live (undeployed) air bag
assembly outside the vehicle, the deployment
procedure must be followed exactly. Always wear
safety glasses during this deployment procedure until
a deployed air bag assembly is scrapped or until an
undeployed air bag assembly is shipped. Before
performing the procedures you should be familiar with
servicing the SRS and with proper handling of the air
bag assembly. Procedures should be read fully
before they are performed.
The following procedure requires use of 5-8840-2468-
06 SRS deployment harness with appropriate pigtail
adapter. Do not attempt procedure without 5-8840-
2468-0 adapter. WARNING: FAILURE TO FOLLOW PROCEDURES
IN THE ORDER LISTED MAY RESULT IN
PERSONAL INJURY. NEVER CONNECT
DEPLOYMENT HARNESS TO ANY POWE
R
SOURCE BEFORE CONNECTING DEPLOYMENT
HARNESS TO THE DRIVER AIR BAG ASSEMBLY.
DEPLOYMENT HARNESS SHALL REMAIN
SHORTED AND NOT BE CONNECTED TO A
POWER SOURCE UNTIL THE AIR BAG IS TO BE
DEPLOYED. THE AIR BAG ASSEMBLY WILL
IMMEDIATELY DEPLOY THE AIR BAG WHEN A
POWER SOURCE IS CONNECTED TO IT. WEA
R
SAFETY GLASSES THROUGHOUT THIS ENTIRE
DEPLOYMENT AND DISPOSAL PROCEDURE.
NOTE: This information applies only to driver air bag
assembly. Refer to “Deployment Outside Vehicle
(Passenger Air Bag assembly)” in this section fo
r
information on passenger air bag assembly scrapping.
1. Turn ignition switch to “LOCK”, remove key and
put on safety glasses.
2. Inspect 5-8840-2468-0 SRS Deployment Harness
and appropriate pigtail adapter for damage. I
f
harness or pigtail adapter is damaged, discard and
obtain a replacement.
3. Short the two SRS deployment harness leads
together by fully seating one banana plug into the
other. SRS deployment harness shall remain
shorted and not be connected to a power source
until the air bag is to be deployed.
827RS004
4. Connect the appropriate pigtail adapter to the SRS
deployment harness.
5. Remove the driver air bag assembly from vehicle.
Refer to “Inflator Module Removal” in this manual.

SUPPLEMENTAL RESTRAINT SYSTEM 9A-19

NOTE: When the air bag deploys, the driver air bag
assembly may jump about 30 cm (one foot) vertically.
This is a normal reaction of the driver air bag to the
force of the rapid gas expansion inside the air bag.

NOTE: When the air bag deploys, the rapid gas
expansion will create a substantial noise. Notify all
people in the immediate area that you intend to deplo
y
the driver air bag.

WARNING: DEPLOYMENT HARNESS SHALL
REMAIN SHORTED AND NOT BE CONNECTED TO
A POWER SOURCE UNTIL THE AIR BAG IS TO BE
DEPLOYED. THE AIR BAG ASSEMBLY WILL
IMMEDIATELY DEPLOY THE AIR BAG WHEN A
POWER SOURCE IS CONNECTED TO IT.
CONNECTING THE DEPLOYMENT HARNESS TO
THE POWER SOURCE SHOULD ALWAYS BE THE
LAST STEP IN THE AIR BAG ASSEMBLY
DEPLOYMENT PROCEDURE. FAILURE TO
FOLLOW PROCEDURES IN THE ORDER LISTED
MAY RESULT IN PERSONAL INJURY.
16. Connect the SRS deployment harness wires to the
power source to immediately deploy the driver ai
r
bag. Recommended application: 12 volts
minimum, 2 amps minimum. A vehicle battery is
suggested.
17. Disconnect the SRS deployment harness from the
power source.
18. Short the two SRS deployment harness leads
together by fully seating one banana plug into the
other.
19. In the unlikely event that the driver air bag
assembly did not deploy after following these
procedures, proceed immediately with Steps 24
through 26. If 19. the driver air bag assembly did
deploy, proceed with Steps 20 through 23.
20. Put on a pair of shop gloves and safety glasses to
protect your hands and eyes from possible
irritation and heat when handling the deployed
driver air bag assembly. After the air bag assembl
y
has been deployed, the surface of the air bag may
contain a powdery residue. This power consists
primarily of cornstarch (used to lubricate the bag
as it inflates) and by products of the chemical
reaction. Sodium hydroxide dust (similar to lye
soap) is produced as a by product of the
deployment reaction. The sodium hydroxide then
quickly reacts with the atmospheric moisture and
is converted to sodium carbonate and sodium
bicarbonate (baking soda). Therefore, it is unlikel
y
that sodium hydroxide will be present after
deployment.
WARNING: SAFETY PRECAUTIONS MUST BE
OBSERVED WHEN HANDING A DEPLOYED AI
R
BAG ASSEMBLY. AFTER DEPLOYMENT, THE
METAL SURFACES OF THE AIR BAG ASSEMBLY
WILL BE VERY HOT. ALLOW THE INFLATOR
MODULE TO COOL BEFORE HANDLING ANY
METAL PORTION OF IT. DO NOT PLACE THE
DEPLOYED AIR BAG ASSEMBLY NEAR ANY
FLAMMABLE OBJECTS. FAILURE TO FOLLOW
PROCEDURES MAY RESULT IN FIRE O
R
PERSONAL INJURY.
AFTER A DRIVER AIR BAG ASSEMBLY HAS BEEN
DEPLOYED, THE METAL CANISTER AND
SURROUNDING AREAS OF THE DRIVER AIR BAG
ASSEMBLY WILL BE VERY HOT. DO NOT TOUCH
THE METAL AREAS OF THE DRIVER AIR BAG
ASSEMBLY FOR ABOUT TEN MINUTES AFTER
DEPLOYMENT. IF THE DEPLOYED DRIVER AI
R
BAG ASSEMBLY MUST BE MOVED BEFORE IT IS
COOL, WEAR GLOVES AND HANDLE BY THE AI
R
BAG OR TRIM COVER.
21. Disconnect the pigtail adapter from the driver ai
r
bag assembly as soon after deployment as
possible. This will prevent damage to the pigtail
adapter or SRS deployment harness due to
possible contact with the hot driver air bag
assembly canister. The pigtail adapter can be
reused. They should, however, be inspected fo
r
damage after each deployment and replaced i
f
necessary.
22. Dispose of the deployed driver air bag assembl
y
through normal refuse channels after it has cooled
for at least 30 minutes.
23. Wash your hands with mild soap and wate
r
afterward.
NOTE: The remaining steps are to be followed in the
unlikely event that the driver air bag assembly did not
deploy after following these procedures.
24. Ensure that the SRS deployment harness has
been disconnected from the power source and that
its two banana plugs have been shorted togethe
r
by fully seating one banana plug into the other.
25. Disconnect the pigtail adapter from the driver ai
r
bag assembly.
WARNING: WHEN STORING A LIVE AIR BAG
ASSEMBLY OR WHEN LEAVING A LIVE
INFLATOR MODULE UNATTENDED ON A BENCH
OR OTHER SURFACE, ALWAYS FACE THE BAG
AND TRIM COVER UP AND AWAY FROM THE
SURFACE. THIS IS NECESSARY SO THAT A
FREE SPACE IS PROVIDED TO ALLOW THE AI
R
BAG TO EXPAND IN THE UNLIKELY E
VENT OF
ACCIDENTAL DEPLOYMENT. FAILURE TO
FOLLOW PROCEDURES MAY RESULT IN
PERSONAL INJURY.

9A-20 SUPPLEMENTAL RESTRAINT SYSTEM

26. Temporarily store the driver air bag assembly with
its trim cover facing up, away from the surface
upon which it rests.

Deployment Outside Vehicle (Passenger
Air Bag Assembly)
WARNING: FAILURE TO FOLLOW PROPER SRS
AIR BAG ASSEMBLY DISPOSAL PROCEDURES
CAN RESULT IN AIR BAG DEPLOYMENT WHICH
MAY CAUSE PERSONAL INJURY. UNDEPLOYED
AIR BAG ASSEMBLIES MUST NOT BE DISPOSED
OF THROUGH NORMAL REFUSE CHANNELS.
THE UNDEPLOYED AIR BAG ASSEMBLY
CONTAINS SUBSTANCES THAT CAN CAUSE
SEVERE ILLNESS OR PERSONAL INJURY IF THE
SEALED CONTAINER IS DAMAGED DURING
DISPOSAL. DISPOSAL IN ANY MANNE
R
INCONSISTENT WITH PROPER PROCEDURES
MAY BE A VIOLATION OF FEDERAL, STATE
AND/OR LOCAL LAWS.
Deployment out of the vehicle is proper when the
vehicle is to be returned to service. This includes, for
example, situations in which a functionally or
cosmetically deficient air bag assembly is replaced.
Deployment and disposal of an air bag assembly is, of
course, subject to any required retention period.
For deployment of a live air bag assembly out of the
vehicle, the deployment procedure must be followed
exactly. Always wear safety glasses during this
deployment procedure until the deployed air bag
assembly is scrapped. Before performing the
procedures, you should be familiar with servicing the
SRS system and with proper handling of the air bag
assembly. Procedures should be read fully before
they are performed.
The following procedure requires use of 5-8840-2468-
0 SRS Deployment Harness with the appropriate
pigtail adapter. The procedure also requires the use
of 5-8840-2420-0 Passenger Side SRS Module
Deployment Fixture. Do not attempt this procedure
without 5-8840-2468-0 and adapter, and 5-8840-2420-
0.
WARNING: FAILURE TO FOLLOW PROCEDURES
IN THE ORDER LISTED MAY RESULT IN
PERSONAL INJURY. NEVER CONNECT
DEPLOYMENT HARNESS TO ANY POWE
R
SOURCE BEFORE CONNECTING DEPLOYMENT
HARNESS TO THE AIR BAG ASSEMBLY.
DEPLOYMENT HARNESS SHALL REMAIN
SHORTED AND NOT BE CONNECTED TO A
POWER SOURCE UNTIL THE AIR BAG IS TO BE
DEPLOYED. THE AIR BAG ASSEMBLY WILL
IMMEDIATELY DEPLOY THE AIR BAG WHEN A
POWER SOURCE IS CONNECTED TO IT. WEA
R
SAFETY GLASSES THROUGHOUT THIS ENTIRE
DEPLOYMENT AND DISPOSAL PROCEDURE. NOTE: This information applies only to passenger ai
r
bag assembly. Information for disposing of a live
driver air bag assembly can be found in “Deployment
Outside Vehicle” (Driver Air Bag Assembly) in this
section.
1. Turn ignition switch to “LOCK” remove key, and
put on safety glasses.
2. Inspect 5-8840-2468-0 SRS Deployment Harness
and appropriate pigtail adapter for damage. I
f
harness or pigtail is damaged, discard and obtain
a replacement.
3. Short the two SRS Deployment Harness leads
together by fully seating one banana plug into the
other. The SRS Deployment Harness shall
remain shorted and not be connected to a powe
r
source until the air bag is to be deployed.
827RS003
4. Connect the appropriate pigtail adapter to the SRS
Deployment Harness
827RS004

SUPPLEMENTAL RESTRAINT SYSTEM 9A-21

5. Remove passenger air bag assembly from vehicle.
Refer to “Passenger Air Bag Assembly Removal “.
6. Clear a space on the ground approximately 183
cm (six feet) in diameter where the fixture with
attached air bag assembly is to be placed fo
r
deployment. A paved outdoor location where
there is no activity is preferred. If an outdoo
r
location is not available, a space on the shop floor
where is no activity and sufficient ventilation is
recommended. Ensure that no loose o
r
flammable objects are within the deployment area.
7. Place the 5-8840-2420-0 on the bench vice. This
is necessary to provide sufficient stabilization o
f
the fixture during deployment.
8. Attach the passenger air bag assembly in the 5-
8840-2420-0.
An air bag assembly must be
mounted such that the bag will deploy upward.
SECURELY HAND–TIGHTEN ALL FASTENERS
PRIOR TO DEPLOYMENT.
901RW199
9. Stretch the SRS Deployment Harness and pigtail
adapter from the air bag assembly to its full
length.
10. Place a power source near the shorted end of the
SRS deployment harness. (Recommended
application: 12 volts minimum, 2 amps minimum.
A vehicle battery is suggested.)
11. Connect the air bag assembly to the pigtail adapte
r
on the SRS deployment harness. The SRS
Deployment Harness shall remain shorted and no
t
be connected to a power source until the air bag is
to be deployed. The air bag assembly will
immediately deploy the air bag when a powe
r
source is connected to it.
NOTE: Ensure that the pigtail adapter is firmly seated
into the air bag assembly connector. Failure to full
y
seat the connectors may leave the shorting bar located
in the air bag assembly connector functioning (shorting
the deployment circuit) and may result in
nondeployment of the air bag assembly.
12.
Verify that the area around the passenger air bag
assembly is clear of all people and loose o
r
flammable objects.
13.
Verify that the passenger air bag assembly is
firmly and properly in 5-8840-2420-0.
14. Notify all people in the immediate area of you
r
intention to deploy the passenger air bag
assembly. The deployment will be accompanied
by a substantial noise which may startle the
uninformed.
15. Separate the two banana plugs on the SRS
deployment harness.
NOTE: When the air bag deploys, the driver air bag
assembly may jump about 30 cm (one foot) vertically.
This is a normal reaction of the driver air bag to the
force of the rapid gas expansion inside the air bag.
NOTE: When the air bag deploys, the rapid gas
expansion will create a substantial noise. Notify all
people in the immediate area that you intend to deplo
y
the air bag assembly.
WARNING: DEPLOYMENT HARNESS SHALL
REMAIN SHORTED AND NOT BE CONNECTED TO
A POWER SOURCE UNTIL THE AIR BAG IS TO BE
DEPLOYED. THE AIR BAG ASSEMBLY WILL
IMMEDIATELY DEPLOY THE AIR BAG WHEN A
POWER SOURCE IS CONNECTED TO IT.
CONNECTING THE DEPLOYMENT HARNESS TO
THE POWER SOURCE SHOULD ALWAYS BE THE
LAST STEP IN THE AIR BAG ASSEMBLY
DEPLOYMENT PROCEDURE. FAILURE TO
FOLLOW PROCEDURES IN THE ORDER LISTED
MAY RESULT IN PERSONAL INJURY.
16. Connect the SRS deployment harness wires to the
power source to immediately deploy the air bag
assembly. Recommended application : 12 volts
minimum, 2 amps minimum. A vehicle battery is
suggested.
17. Disconnect the SRS deployment harness from the
power source.
18.Short the two SRS deployment harness leads
together by fully seating one banana plug into the
other.
19. In the unlikely event that the passenger air bag
assembly did not deploy after following these
procedures, proceed immediately with Steps 24
through 26. If the passenger air bag assembl
y
deployed as intended, proceed with Steps 20
through 23.

SUPPLEMENTAL RESTRAINT SYSTEM 9A-23

5. Strip 13 mm (1/2 inch) of insulation from yellow –
green and yellow – black wire lead of the
connector.
6. Cut two 900 cm (30 feet) deployment wires from
0.8 mm
2 (18 gauge) or thicker multi–strand wire.
These wires will be used to fabricate the drive
r
deployment harness.
7. Strip 13 mm (1/2 inch) of insulation from both ends
of the wires cut in the previous step.
8. Short the wires by twisting together one end from
each. Deployment wires shall remain shorted and
not be connected to a power source until the ai
r
bag is to be deployed.
WARNING: FAILURE TO FOLLOW PROCEDURES
IN THE ORDER LISTED COULD RESULT IN
PERSONAL INJURY. NEVER CONNECT
DEPLOYMENT WIRES TO ANY POWER SOURCE
BEFORE CONNECTING DEPLOYMENT WIRES TO
THE AIR BAG ASSEMBLY LEADS. DEPLOYMENT
WIRES SHALL REMAIN SHORTED AND BE NOT
CONNECTED TO A POWER SOURCE UNTIL THE
AIR BAG IS TO BE DEPLOYED. THE AIR BAG
ASSEMBLY WILL IMMEDIATELY DEPLOY THE AI
R
BAG WHEN A POWER SOURCE IS CONNECTED
TO IT. WEAR SAFETY GLASSES THROUGHOUT
THIS ENTIRE DEPLOYMENT AND DISPOSAL
PROCEDURE.
9. Twist together one connector wire lead to one
deployment wire. The connection should be
mechanically secure.
10. Bend twisted connection made in the previous step
flat and wrap tightly with electrical tape to insulate
and secure.
11. Twist together, bend and tape the remaining
connector wire lead to the remaining deploymen
t
wire.
12. Connect the deployment harness to the driver ai
r
bag assembly, yellow connector at the base of the
steering column. Route deployment harness ou
t
the driver side of the vehicle.
WARNING: DEPLOYMENT WIRES SHALL REMAIN
SHORTED AND NOT BE CONNECTED TO A
POWER SOURCE UNTIL THE AIR BAG IS TO BE
DEPLOYED.
THE AIR BAG ASSEMBLY WILL IMMEDIATELY
DEPLOY THE AIR BAG WHEN A POWER SOURCE
IS CONNECTED TO IT.
Connecting the deployment wires to the powe
r
source should always be the final step in the air
bag assembly deployment procedure.
Failure to follow procedures in the order listed
could result in personal injury.
13. Disconnect passenger air bag assembly, yello
w
connector located behind glove box assembly.

14.Cut the passenger air bag assembly harness
connector from the vehicle leaving at least 15 cm
(six inches) of wire at the connector.
15. Strip 13 mm (1/2 inch) of insulation from blue–
white and pink–blue wire lead of the connector.
16. Cut two 900 cm (30 feet) deployment wires from
0.8 mm
2 (18 gauge) or thicker multi–strand wire.
These wires will be used to fabricate the
passenger deployment harness.
17. Strip 13 mm (1/2 inch) of insulation from both ends
of the wires cut in the previous step.
18. Short the wires by twisting together one end from
each. Deployment wires shall remain shorted and
not be connected to a power source until the ai
r
bag is to be deployed.
WARNING: FAILURE TO FOLLOW PROCEDURES
IN THE ORDER LISTED COULD RESULT IN
PERSONAL INJURY. NEVER CONNECT
DEPLOYMENT WIRES TO ANY POWER SOURCE
BEFORE CONNECTING DEPLOYMENT WIRES TO
THE AIR BAG ASSEMBLY LEADS. DEPLOYMENT
WIRES SHALL REMAIN SHORTED AND NOT BE
CONNECTED TO A POWER SOURCE UNTIL THE
AIR BAG IS TO BE DEPLOYED. THE AIR BAG
ASSEMBLY WILL IMMEDIATELY DEPLOY THE AI
R
BAG WHEN A POWER SOURCE IS CONNECTED
TO IT. WEAR SAFETY GLASSES THROUGHOUT
THIS ENTIRE DEPLOYMENT AND DISPOSAL
PROCEDURE.
19. Twist together one connector wire lead to one
deployment wire. The connection should be
mechanically secure.
20. Bend twisted connection made in the previous step
flat and wrap tightly with electrical tape to insulate
and secure.
21. Twist together, bend and tape the remaining
connector wire lead to the remaining deployment
wire.
22. Connect the deployment harness to the passenge
r
air bag assembly, yellow connector located behind
the glove box assembly. Route deployment
harness out the passenger side of the vehicle.
WARNING: DEPLOYMENT WIRES SHALL REMAIN
SHORTED AND NOT BE CONNECTED TO A
PO
WER SOURCE UNTIL THE AIR BAG IS TO BE
DEPLOYED. THE AIR BAG ASSEMBLY WILL
IMMEDIATELY DEPLOY THE AIR BAG WHEN A
POWER SOURCE IS CONNECTED TO IT.
CONNECTING THE DEPLOYMENT WIRES
SHOULD ALWAYS BE THE FINAL STEP IN THE
AIR BAG ASSEMBLY DEPLOYMENT PROCEDURE.
FAILURE TO FOLLOW PROCEDURES IN THE
ORDER LISTED COULD RESULT IN PERSONAL
INJURY.

ENGINE ELECTRICAL 6D – 11



RTW46DSH000301
7. Rotor Assembly
1. Remove the rotor from front cover assembly.

Remove the front cover stator and rectifier.




RTW46DSH000701
8. Front Cover Assembly
1. Remove the front cover bearing retainer screws.
2. Remove the bearing.




RTW46DSH000801
9. Rear rotor bearing

Re-use improper parts.
10. Rectifier
1. Disconnect the stator coil leads between each rectifier
by melting the solder connection.
Hold the lead wire between the solder and the rectifier
with a pair of long nose pliers.
This will prevent heat transfer and resultant damage to
the rectifier.



RTW46DSH000401

ENGINE ELECTRICAL 6D – 19


RTW46DSH000401
Important Operations
2. Rear rotor bearing

Re-use improper parts.


5. Rectifier
6. Stator
Use a pair of long-nose plier to connect the stator coil
leads and the rectifier leads.
Finish the work as quickly as possible to prevent the
rectifier from heat transferred by the soldering.



RTW46DSH002101







3. Rotor Assembly
4. Pulley Assembly
Clamp the rotor in a vise and install the pulley nut.
Pulley Nut Torque Nm (kgm/lbft)
83.3  98.0 (8.5  10.0 / 61  72)





RTW46DSH006001
Remove the tape from the splines.









RTW46DSH004901
The rear ball bearing is pressed into the wheel eccentric
groove. The bearing ring projects from the groove.

During installation, rotate the bearing to the point of
minimum bearing ring projection.

Inspect the rear cover bearing box and replace it if it is
damaged.

6E–64 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
GENERAL DESCRIPTION FOR ECM AND
SENSORS
Engine Control Module (ECM)
The engine control module (ECM) is located flower
panel just under the passenger's seat.
The fuel quantity and injection timing related functions
are controlled by the pump control unit (PSG).
The engine control module (ECM) performs the
following functions.
Control of the ex haust gas re-circulation (EGR)
Control of the quick on start (QOS) glow control
system
Control of the A/C compressor
Ex ecution of the immobilizer function
Pump Control Unit (PSG) & Data Exchange
Between Control Module
The radial plunger distributor type injection pump uses
two control modules to ex ecute full control of the enginemanagement system.
Engine Control Module (ECM)
Pump Control Unit (PSG) = Pumpen Steuer Great
(German)
The pump control unit (PSG) receives signals from the
sensors inside the pump to determine the cam ring
rotation angle, the pump speed and the fuel
temperature .
These values are then compared to the desired values
sent by the engine control module (ECM) such as the
desired injection timing and the desired fuel injection
quantity.
The engine control module (ECM) processes all engine
data and data regarding the surrounding environment
received from ex ternal sensors to perform any engine
side adjustments.
Maps for both are encoded in both control units. The
control units input circuit process sensor data.
A Microprocessor then determines the operating
conditions and calculates set values for optimum
running.
The interchange of data between the engine control
module (ECM) and the pump control unit (PSG) is
perfumed via a CAN-bus system. The abbreviation CAN
stands for Controller Area Network. By having two
separate control modules, the high pressure solenoid
valve. This prevents the discharge of any disturbing
signals.
The information ex change between the two control
modules takes place via two means.
Via analogue signal leads
Via the CAN-bus
The analogue signal leads are used to ex change the
following information.
Engine speed signal (ECM terminal 91)
Pump Speed (ECM terminal 105)
Fuel Cutoff solenoid valve signal (MAB signal) (ECM
terminal 105)
The engine speed signal is sent from the ECM to PSG
based on the input from the crank shaft position (CKP)
sensor.
The analogue CKP sensor signal is converted by the
ECM into a square wave signal.
The fuel cutoff solenoid valve signal is also referred to
as MAB signal.
MAB in this case, refers to the German abbreviation
Magnet ventil ABschaltung that stands for high pressure
solenoid v alv e cut off.
The MAB signal wire is used for two purposes.
-As a reference for the engine control module (ECM) for
the pump speed (back up for the CKP sensor).
-To turn Off the engine.
Sel f Dia gn osis / Interfa ce / Si gn al
To High Pressure Solenoid
Engine Speed
Injection Timing
Accelerator Pedal
Injection Quantity
In ta ke Air Temperat ure
Response Signal
Ma ss Air Flow
Additional Signal
Others

Additional Operations To Timing Control Valve (TCV)
Engin e
Con trol
Modu le
(ECM) Cam Rin g Rota tiona l Angle
Fuel Temper atu re
High Pressure
Solenoid Valve
Pump
Con tr ol Fuel Inject ion
Unit (Mechanical)
(PSG)

Ti m i n
g Devi ce

6D1-2 ENGINE ELECTRICAL (6VE1 3.5L)
Battery
General Description
There are six battery fluid caps on the top of the battery.
These are covered by a paper label.
The battery is completely sealed except for the six small
vent holes on the side. These vent holes permit the
escape of small amounts of gas generated by the
battery.
This type of battery has the following advantages ove
r
conventional batteries:
1. There is no need to add water during the entire
service life of the battery.
2. The battery protects itself against overcharging.
The battery will refuse to accept an extensive
charge.
(A conventional battery will accept an excessive
charge, resulting in gassing and loss of battery
fluid.)
3. The battery is much less vulnerable to sel
f
discharge than a conventional type battery.
Diagnosis
1. Visual Inspection
Inspect the battery for obvious physical damage, such
as a cracked or broken case, which would permi
t
electrolyte loss.
Replace the battery if obvious physical damage is
discovered during inspection.
Check for any other physical damage and correct it as
necessary.


2. Fluid Level Check
The fluid level should be between the upper level line(1)
and lower level line(2) on side of battery.
a. CORRECT FLUID LEVEL – Charge the battery.
b. BELOW LOWER LEVEL – Replace battery.



RTW36DSH000101
3. Voltage Check
1. Put voltmeter test leads to battery terminals.
a. VOLTAGE IS 12.4V OR ABOVE – Go to Step 5.
b. VOLTAGE IS UNDER 12.4V – Go to procedure
(2) below.
2. Determine fast charge amperage from specification.
(See Main Data and Specifications in this section).
Fast charge battery for 30 minutes at amperage
rate no higher than specified value.
Take voltage and amperage readings after charge.
a. VOLTAGE IS ABOVE 16V AT BELOW 1/3 OF
AMPERAGE RATE – Replace battery.
b. VOLTAGE IS ABOVE 16V AT ABOVE 1/3 OF
AMPERAGE RATE – Drop charging voltage to
15V and charge for 10 – 15 hours. Then go to
Step 5.
c. VOLTAGE IS BETWEEN 12V AND 16V –
Continue charging at the same rate for an
additional 3–1/2 hours. Then go to Step 5.
d. VOLTAGE BELOW 12V – Replace Battery.

6E-108 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Injector Coil Test Procedure (Steps 1-6) and Injector Balance Test Procedure
(Steps 7-11)

Step Action Value(s) YES NO
1
Was the “On-Board Diagnostic (OBD) System Check"
performed?
— Go to Step 2 Go to OBD
System Check
2 1. Turn the engine “OFF."
In order to prevent flooding of a single cylinder and
possible engine damage, relieve the fuel pressure
before performing the fuel injector coil test procedure.
2. Relieve the fuel pressure. Refer to Test
Description Number 2.
3. Connect the 5–8840–2618–0 Fuel Injector Tester
to B+ and ground, and to the 5–8840–2635–0
Injector Switch Box.
4. Connect the injector switch box to the gray fuel
injector harness connector located at the rear of
the air cleaner assembly.
5. Set the amperage supply selector switch on the
fuel injector tester to the “Coil Test" 0.5 amp
position.
6. Connect the leads from the Digital Voltmeter
(DVM) to the injector tester. Refer to the
illustrations associated with the test description.
7. Set the DVM to the tenths scale (0.0).
8. Observe the engine coolant temperature.
Is the engine coolant temperature within the specified
values? 10
C (50
F) to
35
C (95
F) Go to Step 3 Go to Step 5
3
1. Set injector switch box injector #1.
2. Press the “Push to Start Test" button on the fuel
injector tester.
3. Observe the voltage reading on the DVM.
Important: The voltage reading may rise during the
test.
4. Record the lowest voltage observed after the first
second of the test.
5. Set the injector switch box to the next injector and
repeat steps 2, 3, and 4.
Did any fuel injector have an erratic voltage reading
(large fluctuations in voltage that did not stabilize) or a
voltage reading outside of the specified values? 5.7-6.6 V Go to Step 4 Go to Step 7
4 Replace the faulty fuel injector(s). Refer to Fuel
Injector.
Is the action complete? — Go to Step 7 —