engine ISUZU TF SERIES 2004 Workshop Manual

11B – 16 ANTITHEFT SYSTEM
A
DOOR SW-DR
B-73
DOOR SW-PASSDOOR SW-RR RHDOOR SW-RR LH
L-7
0.5
B/W0.5
B/W0.5
B/W
0.5
R/G0.5
R/G0.5
R/G 0.5
R/G0.5
R/G
1
ALARMER C/U
(BUZZER)
1=with ALARMER C/U(BUZZER) only0.5
R/G0.5
R/G0.5
R/W
1.25
B
1.25
B
2.0
B
2.0
B
DOME
LIGHTHORN;
ANTI THEFT
L-91
H-185 L-9
2
RR DEF
(1)
WELD
SPLICE MAP
LIGHT
C-2
ENGINE 
ROOM RH
R-62
R-61
R-11
R-101
R-91 2
H-26L-11
L-1
2
H-1210
H-127R-1R-10R-9
0.5
R/B0.5
R/B
0.5
R/B0.5
R/B
2 2 2
9
H-2614
H-2613
H-26
C-11 10A
AUDIO
2 B-56 3
B-624 2
B-62 B-62
3 B-63
P-6P-5
8
BIG.1IG.2 MAIN
20
B/Y8
B/R
3
W/B
3
W3
W/B
3
B/Y
0.5
R/Y0.5
R/W0.5
R/W0.85R/Y
1.25
LG/W 5
W
P-11
C-108 2
C-108
B1 B2
IG1 IG2 ACCOFF
ST
P-10P-2SBF-180A (4JA1/4JH1)
100A (6VE1/C24SE)
DOOR LOCKC-14
20A
ANTI THEFTC-17
10A
ROOM LAMPC-16
10A SBF-540A50A
SBF-9
BODY ENGINE
JANCTION BLOCK
B-56
8
B-43
2B-43
6
H-104
H-247
D-207
D-206H-134
H-257
D-103
D-104B-44
1B-44
2 4
B-445
B-442
C-117
5
H-12 9
B-43 3
B-43B-55
4B-56C-108
4
H-181 C-117
1 6
AUTO DOOR LOCK SW.
DRIVER SIDE
AUTO DOOR LOCK SW.
PASSENGER SIDE
0.5
LG/R
0.5
LG/R0.5
LG/R 0.5
R/L
0.5
R/L0.5
R/L
(POWER WINDOW SW.)
LOCK UN LOCK
WITH POWER WINDOW
DOOR LOCK
MOTORB ACC
ANTI THEFT C/U(with KEYLESS ENTRY) STARTER
SW.
3
L
POWER
SUPPLY
RTW48AXF023901
WIRING DIAGRAM (RHD)

ANTITHEFT SYSTEM 11B – 17
ALARM
TRIGGER7
B-440.5
B 0.5
Y/L 0.5
R/Y
0.85
B0.5
B 0.5
G/Y0.5
G0.5
G
0.5
G/Y2
W
10A
HAZARDEB-16
1.25
B
C-2B-58 C-15
ENGINE
ROOM-RHH-183 H-712
28
B-44
B-43
11 B-43 UNLOCK
8 B-43 LOCK
7 B-44
18 B-44 UNLOCK
16 B-44 LOCK
151
X-9 3
X-9
4 X-9
2 X-9
HAZARD
RELAY-LHHAZARD
RELAY-RH
HAZARD SW
1
X-10 3
X-10
4 X-10
2 X-10
DATA LINK
CONNECTOR
RR COMBI
LHRR COMBI
RH
B-73 D-241
D-24 D-4D-243 H-102
H-109
D-44
D-41
D-43 H-105
H-248
H-108
0.5
L/R1.25
L/R 1.25
L/R
1.25
L 0.5
L/Y0.5
L/Y
0.5
BR/B
22
LOCK
UN LOCK
KEY
CYLINDER
SW.
DOOR LOCK
ACTUATOR
DRIVER
0.5
B0.5
BFLASHER
CONTROL
ANTI THEFT C/U(with KEYLESS ENTRY)
1 3 4
5
7 89
10
11 12
13 14 15
162
6 B-56310A
METER (+B)
2
B
2
B
C-2
ENGINE
ROOM-RH B-44
6
C-2
ENGINE
ROOM-RHH-185 0.85 B
0.5BR/R
0.5
BR/R
0.5
B 0.5
B
1.25
B 0.5LG/WWELD
SPLICEB-73
WELD
SPLICEB-73 WELD
SPLICEB-73 D-261
D-26 D-9D-263 H-132
H-139
D-94
D-91
D-93 H-135
H-258
H-138
0.5
L/R1.25
L/R1.25
L 1.25L
1.25L/R
0.5BR/B
1.25L
1.25L/R
0.5BR/B
0.5
L/Y0.5
BR/B
22
LOCK
UN LOCK
KEY
CYLINDER
SW.
DOOR LOCK
ACTUATOR
PASSENGER
0.5
B0.5
B
WELD
SPLICED-18
D-184
D-181
D-183 H-265
H-2615
H-261
H-166
H-163
H-162
1.25
L/R1.25
L 0.5
BR/B1.25
L/R1.25
L
0.5
BR/B 1.25
L/R1.25
L 0.5
BR/B
2
LOCK
UN LOCK
DOOR LOCK
ACTUATOR
RR-RH
1.25
L/WD-14
D-144
D-141
D-143 H-146
H-143
H-142
1.25
L/R1.25
L 1.25
BR/B
2
5H-26
LOCK
UN LOCK
DOOR LOCK
ACTUATOR
RR-LH
ANTI THEFT INDICATOR
ENGINE HOOD SW
1.25
L/W
1.25
B
2B 1.25B
A
C-301 H-188
2 C-30
B-44
11
C-2
ENGINE
ROOM-RH
ENGINE
ROOM-RH
B-521
2 B-52
H-18
H-183
H-147
6 H-167
C-2
RTW48AXF024001
WIRING DIAGRAM (RHD)

11B – 18 ANTITHEFT SYSTEM
A
DOOR SW-DR
B-73
DOOR SW-PASSDOOR SW-RR RHDOOR SW-RR LH
L-7
0.5
B/W0.5
B/W0.5
B/W
0.5
R/G0.5
R/G0.5
R/G 0.5
R/G0.5
R/G
1
ALARMER C/U
(BUZZER)
1=with ALARMER C/U(BUZZER) only0.5
R/G0.5
R/G0.5
R/W
1.25
B
1.25
B
2.0
B
2.0
B
DOME
LIGHTHORN;
ANTI THEFT
L-91
H-185 L-9
2
RR DEF
(1)
WELD
SPLICE MAP
LIGHT
C-2
ENGINE 
ROOM RH
R-62
R-61
R-11
R-101
R-91 2
H-26L-11
L-1
2
H-1210
H-127R-1R-10R-9
0.5
R/B0.5
R/B
0.5
R/B0.5
R/B
2 2 2
9
H-2614
H-2613
H-26
C-11 10A
AUDIO
2 B-56 3
B-624 2
B-62 B-62
3 B-63
P-6P-5
8
BIG.1IG.2 MAIN
20
B/Y8
B/R
3
W/B
3
W3
W/B
3
B/Y
0.5
R/Y0.5
R/W0.5
R/W0.85R/Y
1.25
LG/W 5
W
P-11
C-108 2
C-108
B1 B2
IG1 IG2 ACCOFF
ST
P-10P-2SBF-180A (4JA1/4JH1)
100A (6VE1/C24SE)
DOOR LOCKC-14
20A
ANTI THEFTC-17
10A
ROOM LAMPC-16
10A SBF-540A50A
SBF-9
BODY ENGINE
JANCTION BLOCK
B-56
8
B-43
2B-43
6
H-104
H-247
D-207
BD-206H-134
H-257
D-103
D-104B-44
1B-44
2 4
B-445
B-442
C-117
5
H-12 9
B-43 3
B-43B-55
4B-56C-108
4
H-181 C-117
1 6
AUTO DOOR LOCK SW.
DRIVER SIDE
AUTO DOOR LOCK SW.
PASSENGER SIDE
0.5
LG/R
0.5
LG/R0.5
LG/R 0.5
R/L
0.5
R/L0.5
R/L
(POWER WINDOW SW.)
LOCK UN LOCK
WITH POWER WINDOW
DOOR LOCK
MOTORB ACC
ANTI THEFT C/U with SUPER LOCK STARTER
SW.
3
L
POWER
SUPPLY
RTW48AXF025401
WIRING DIAGRAM (Super Lock)

11B – 20 ANTITHEFT SYSTEM
RTW48AXF024901
ANTI THEFT INDICATOR
ENGINE HOOD SW
7
B-440.5
B 0.5
Y/L
0.3
V0.5
R/Y
0.85
B0.5
B
1.25
B
C-2B-58 C-15
ENGINE
ROOM-RHH-183
B-43
11
DATA LINK
CONNECTOR
IMMOBILIZER C/U
ANTI THEFT C/U with SUPER LOCK
1 3 4
5
7 89
10
11 12
13 14 15
162
6 B-563
9
B-44 B-68
610A
METER (+B)
2
B
2
B
C-2
ENGINE
ROOM-RH B-44
6
C-2
ENGINE
ROOM-RHH-185 0.85 B
0.5BR/R
0.5
BR/R
0.5
B 0.5
B
1.25
B 0.5LG/WWELD
SPLICEB-73
WELD
SPLICEB-73 D-18
D-271
D-274
D-272 H-265
H-2615
H-261
H-166
H-163
H-162
1.25
L/R1.25
L 0.5
BR/B1.25
L/R1.25
L
0.5
BR/B
7
LOCK
UN LOCKLOCK UN LOCKLOCK UN LOCK
DOOR LOCK
ACTUATOR
RR-RH
1.25
L/WD-14
D-281
D-284
D-282 H-146
H-143
H-142
1.25
L/R1.25
L
D-283
D-286H-147
D-273 H-269
D-276H-167
1.25
BR/B
2
5H-26
LOCK
UN LOCK
DOOR LOCK
ACTUATOR
RR-LH
1.25
L/W
1.25
B
2B 1.25B
E
B
C
D
C-301 H-188
2 C-30
B-44
11
C-2
ENGINE
ROOM-RH
ENGINE
ROOM-RH
B-521
2 B-52
H-18
H-183
H-147
6 H-167
C-2
RTW48AXF024901
WIRING DIAGRAM (Super Lock)

11B – 22 ANTITHEFT SYSTEM
Pin-Assignment
No. Pin Assignment 28 PIN
1 Contact switch driver door
2 Contact switch doors
3—
4 Power supply antitheft
5 horn
6 Contact switch engine compartment
7 Diagnosis
8—
9—
10 —
11 Status LED
12 —
13 —
14 —
15 Lock driver side door lock cylinder
16 Unlock driver side door lock cylinder
17 —
18 Micro Switch, lock / unlock door lock motor
19 —
20 —
21 —
22 —
23 —
24 —
25 —
26 —
27 —
28 Flasher control
No. Pin Assignment 12 PIN
1—
2—
3 Key in
4—
5—
6 Micro Switch, unlock, auto door lock
7 Lock, locking motors
8 Unlock, locking motors
9 Power supply locking motors
10 —
11 Ground
12 —

11B – 34 ANTITHEFT SYSTEM
Tech-2 Data List
No. Streings Units
1 Battery Voltage V
2‘KEY-IN’ Status ON/OFF
3 CDLS-Motor Voltage (Central Door Locking System) V
4 Accident Sensor (Crash Sensor) Active/Inactive
5 Remote Key Active/Inactive
6 Remote-Key Detected Remote Key No.
7 Key Function Detected Lock/Unlock
8 Prev. Detected Remote-Key (Previously) Remote Key No.
9 Previously Key Function Lock/Unlock
10 Remote-Key 1 Status In Range/Not Programmed
11 Remote-Key 2 Status In Range/Not Programmed
12 Remote-Key 3 Status In Range/Not Programmed
13 Remote-Key 4 Status In Range/Not Programmed
14 Remote-Key 5 Status In Range/Not Programmed
15 Front Door Unlock Switch Active/Inactive
16 Front Door Lock Switch Active/Inactive
17 Front Door Lock Status Active/Inactive
18 Auto Door Unlock Switch Active/Inactive
19 Auto Door Lock Switch Active/Inactive
20 Auto Door Lock Status Active/Inactive
21 Trunk Signal Switch *Not used Open/Closed
22 Doorknob Switch Open/Closed
23 Doorknob Status Lock/Unlock
24 Trunk Doorknob Switch *Not used Open/Closed
25 Trunk Doorknob Status *Not used Lock/Unlock
26 Driver Door Switch Open/Closed
27 Driver Door Status Open/Closed
28 All Door Switch Open/Closed
29 All Door Status Open/Closed
30 Doorlock Tamper Switches Open/Closed
31 Engine Hood Switch Open/Closed
32 Engine Hood Status Open/Closed
33 Trunk Switch *Not used Open/Closed
34 Trunk Status *Not used Open/Closed
35 Pane Breakage Connected *Not used Yes/No
36 Pane Breakage Status *Not used Disabled/Abled
37 CDLS-Motor Current (Central Door Locking System) A
38 CDLS-Motor Unlock (Central Door Locking System) V
39 CDLS-Motor Lock (Central Door Locking System) V
40 Overflow Protection Active/Inactive
41 Turn Signal Active/Inactive
42 Horn Connected Yes/No
43 Horn Signal Active/Inactive
44 Theft LED ON/OFF
45 CDLS-Status (Central Door Locking System) Lock/Unlock
46 Selftest Request Active/Inactive
47 Last Use—
48 Theft Status Disabled/Abled
49 Alarm Status Active/Inactive
50 Security Wait Time Active/Inactive

ANTITHEFT SYSTEM 11B – 37
Antitheft System Check
Step Action Value (s) Yes No
1
2
3
4
5
6
7
8
91. Key position is “ACC”, shut all doors and
bonnet.
2. Observe the antitheft lamp.
Note: When a key switch is “ACC”, antithft
lamp will turn on and a antitheft lamp (LED)
will be flashing after 10 seconds.
Is the antitheft lamp "ON” or flashing?
1. Key position is “ON”, engine “OFF”.
2. Observe the antitheft lamp.
3. Key position is turned “ACC”.
4. Check the antitheft lamp will be turned
flashing and lamp will be turned ACC after 10
seconds.
Is the antitheft lamp flashing?
1. Key position is “OFF”.
2. Install the Tech-2.
3. Key position is “ON” or “OFF”.
4. Attempt to display antitheft data with the
Tech-2.
Does the Tech-2 display antitheft data?
1. Key position is “OFF”, disconnect the
antitheft control unit (ACU).
2. Check the DLC (Data Link Connector) circuit
for an open, short to ground, or short to
voltage.
Also, check the DLC ignition feed circuit for an
open or short to ground and the DLC ground
circuit for an open.
Was a problem found?
Repair or replace the DLC (Data Link Connector)
circuit.
Was the action complete?
1. Check the ACU ground circuit for an open, or
short to voltage. Also, check the ACU ignition
feed circuit for an open or short to ground
and the ACU ground circuit for an open.
2. If a problem is found, repair as necessary.
Was the problem found?
Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the antitheft data by Tech-2.
Was the action complete?
Select “Display DTCs” with the Tech-2.
Are any DTCs stored?
1. Observe the antitheft data list on Tech-2.
2. If a problem is found, repair as necessary.
Was the problem found?—
—
—
—
—
—
—
—
—Go to Step 2
Go to
DTC table
Go to Step 9
Go to Step 5
Go to Step 3
Verfy repair
Go to Step 8
Go to applicable
DTC table
System OKGo to
“No antitheft
lamp”
Go to Step 3
Go to Step 4
Go to Step 6
—
Go to Step 7
—
—
Go to
applicable
section

POWER-ASSISTED STEERING SYSTEM 3B-7


Power Steering System Test
Test Procedure
F02RX002
Legend
(1) Bolt
(2) Hose
(3) Power Steering Unit
(4) Power Steering Pump


Test of fluid pressure in the power steering system is
performed to determine whether or not the oil pump and
power steering unit are functioning normally.
The power steering system test is used to identify and
isolate hydraulic circuit difficulties. Prior to performing
this test, the following inspections and corrections, i
f
necessary, must be made.


Inspect pump reservoir for proper fluid level.


Inspect pump belt for proper tension.


Inspect pump driver pulley condition.
1. Place a container under the pump to catch the fluid
when disconnecting or connecting the hoses.
2.
With the engine NOT running, disconnect the
pressure hose at the power steering pump and
install power steering tester 5-8840-0135-0 as
shown in the illustration. The gage must be between
the shutoff valve and pump. Open the shutoff valve.
3. Check the fluid level. Fill the reservoir with powe
r
steering fluid, to the "Full" mark. Start the engine,
then turn the steering wheel and momentarily hold it
against a stop (right or left). Turn the engine off and
check the connections at tester for leakage.
4. Bleed the system. Refer to Bleeding the Powe
r
Steering System in this section.
5. Start the engine and check the fluid level. Add
power steering fluid if required. When the engine is
at normal operating temperature, increase engine
speed to 1500 rpm.
CAUTION: Do not leave shutoff valve fully closed
for more than 5 seconds, as the pump could
become damaged internally.

3B-8 POWER-ASSISTED STEERING SYSTEM

6. Fully close the shutoff valve. Record the highest
pressures.


If the pressure recorded is within 9300-9800 kPa
(95-100 kg/cm
2/1350-1420 psi), the pump is
functioning within its specifications.


If the pressure recorded is higher than 9800 kPa
(100 kg/cm
2/1420 psi), the valve in the pump is
defective.


If the pressure recorded is lower than 9300 kPa (95
kg/cm
2/1350 psi), the valve or the rotating group in
the pump is defective.
7. If the pump pressures are within specifications,
leave the valve open and turn (or have someone
else turn) the steering wheel fully in both directions.
Record the highest pressures and compare with the
maximum pump pressure recorded in step 6. If this
pressure cannot be built in either side of the powe
r
steering unit, the power steering unit is leaking
internally and must be replaced.
8. Shut the engine off, remove the testing gauge.
9. Reconnect the pressure hose, check the fluid level
and make the needed repairs.
10. If the problem still exists, the steering and fron
t
suspension must be thoroughly examined.

Maintenance
The hydraulic system should be kept clean and fluid
level in the reservoir should be checked at regula
r
intervals and fluid added when required. Refer to
Recommended Fluids and Lubricants in General
Information section for the type of fluid to be used and
the intervals for filling.
If the system contains some dirt, flush it as described in
this section. If it is exceptionally dirty, the pump must be
completely disassembled before further usage. (The
steering unit cannot be disassembled.)
All tubes, hoses, and fittings should be inspected for
leakage at regular intervals. Fittings must be tight. Make
sure the clips, clamps and supporting tubes and hoses
are in place and properly secured.
Power steering hoses and lines must not be twisted,
kinked or tightly bent. Air in the system will cause
spongy action and noisy operation. When a hose is
disconnected or when fluid is lost, for any reason, the
system must be bled after refilling. Refer to Bleeding the
Power Steering System in this section.


Inspect belt for tightness.


Inspect pulley for looseness or damage. The pulle
y
should not wobble with the engine running.


Inspect hoses so they are not touching any othe
r
parts of the vehicle.


Inspect fluid level and fill to the proper level.

Fluid Level
1. Run the engine until the power steering fluid
reaches normal operating temperature, about 55
C (130
F), then shut the engine off.
2. Check the level of fluid in the reservoir.
3. If the fluid level is low, add power steering fluid as
specified in General Information to the proper level
and install the receiver cap.
4. When checking the fluid level after the steering
system has been serviced, air must be bled from
the system. Refer to Bleeding the Power Steering
System in this section.

Bleeding The Power Steering System
When a power steering pump or unit has been installed,
or an oil line has been disconnected, the air that has
entered the system must be bled out before the vehicle
is operated. If air is allowed to remain in the powe
r
steering fluid system, noisy and unsatisfactory operation
of the system may result.

Bleeding Procedure
When bleeding the system, and any time fluid is added
to the power steering system, be sure to use only powe
r
steering fluid as specified in General Information.
1. Fill the pump fluid reservoir to the proper level and
let the fluid settle for at least two minutes.
2. Start the engine and let it run for a few seconds. Do
not turn the steering wheel. Then turn the engine
off.
3. Add fluid if necessary.
4. Repeat the above procedure until the fluid level
remains constant after running the engine.
5. Raise and support the front end of the vehicle so
that the wheels are off the ground.
6. Start the engine. Slowly turn the steering wheel right
and left, lightly contacting the wheel stops.
7. Add power steering fluid if necessary.
8. Lower the vehicle, set the steering wheel at the
straight forward position after turning it to its full
steer positions 2 or 3 times, and stop the engine.
9. Check the fluid level and refill as required.
10. If the fluid is extremely foamy, allow the vehicle to
set a few minutes, then repeat the above procedure.

Flushing The Power Steering System
1. Raise and support the front end of the vehicle off
the ground until the wheels are free to turn.
2. Remove the fluid return line at the pump inlet
connector and plug the connector port on the pump.
Position the line toward a large container to catch
the draining fluid.
3. While running the engine at idle, fill the reservoi
r
with new power steering fluid. Turn the steering
wheel in both directions. Do not contact or hold the
steering wheel to the wheel stops. This will cause
the pump to go to pressure relief mode, which ma
y
cause a sudden fluid overflow at the reservoir.

POWER-ASSISTED STEERING SYSTEM 3B-9

4. Install all the lines and hoses. Fill the system with
new power steering fluid and bleed the system as
described in Bleeding The Power Steering System.
Operate the engine for about 15 minutes.
Remove the pump return line at the pump inlet and
plug the connection on the pump. While refilling the
reservoir, check the draining fluid for contamination.
If foreign material is still evident, replace all lines,
disassemble and clean or replace the powe
r
steering system components. Do not re-use any
drained power steering fluid.

Steering Wheel Free Play Inspection
060R300016
1. With the tires in the straight-ahead position, check
the amount of steering wheel play by turning the
wheel in both directions until the tires begin to move.
NOTE: The wheel free play should be checked with the
engine running.
Free play: 0 - 30 mm (0 - 1.18 in)
2.
Also check the steering wheel for play and
looseness in the mount by moving it back and forth
and sideways. When test driving, check for hard
steering, steering shimmy and tendency to pull to
one side.

Front End Alignment Inspection and
Adjustment
Toe-in Adjustment
Toe-in: Refer to Section 3A FRONT ALIGNMENT
1. To adjust the toe-in angle, loosen the lock nuts (2)
on the tie rod (1) and turn the tie rod. Turn both rods
the same amount, to keep the steering wheel
centered .
This illustration is based on the RHD model.
431R30006
2. Tighten the lock nut to the specified torque.
Torque:
92 - 104 N




m (9.4 - 10.6 kg




m/68 - 77 lb ft)