diagram ISUZU TF SERIES 2004 Workshop Manual

6E–248 ENGINE DRIVEABILITY AND EMISSIONS
CUTS OUT, MISSES SYMPTOM
DEFINITIONS: Steady pulsation or jerking that follows
engine speed; usually more pronounced as engine load
increases.
Step Action Value(s) Yes No
1Was the “On-Board Diagnostic (OBD) System Check”
performed?—Go to Step 2Go to OBD
System Check
2 1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found that addresses the symptom?—Verify repair Go to Step 3
3 Was a visual/physical check performed?
—Go to Step 4Go to Visual /
physical Check.
4 Check the ECM grounds to verify that they are clean
and tight. Refer to the ECM wiring diagrams in
Electrical Diagnosis.
Was a problem found?—Verify repair Go to Step 5
5 Check for a loose or short circuit of ignition coil
module voltage feed.
Was a problem found?—Verify repair Go to Step 6
6 Check for a loose or short circuit of ignition coil
module ground.
Was a problem found?—Verify repair Go to Step 7
7 Visually/physically inspect all spark plug high-tension
cables. Check for the following conditions:
Verify that the resistance of all spark plug high-
tension cables are less than the specified value.
Verify that the all spark plug high-tension cables are
correctly fitted to eliminate cross-fitting.
Verify that the all spark plug high-tension cables are
not arcing to ground.
Spraying the spark plug high-tension cables with a
light mist of water may help locate an intermittent
problem.
Was a problem found?#1 cyl. 4.4k

#2 cyl. 3.6k

#3 cyl. 3.1k

#4 cyl. 2.8k
Verify repair Go to Step 7
8 Check the CKP sensor wire, shield wire, or installation
condition.
Was a problem found?—Verify repair Go to Step 9
9 Monitor “B1S1 (Bank 1 Sensor 1) Status” on the Tech
2.
Is the “B1S1 (Bank 1 Sensor 1) Status” in the rich
condition?—Go to Step 10Go to Step 11

ENGINE DRIVEABILITY AND EMISSIONS 6E–251
LACK OF POWER, SLUGGISH OR SPONGY SYMPTOM
DEFINITIONS: Engine delivers less than ex pected power. Attempting part-throttle acceleration results in little or no
increase in vehicle speed.
Step Action Value(s) Yes No
1Was the “On-Board Diagnostic (OBD) System Check”
performed?—Go to Step 2Go to OBD
System Check
2 1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found that addresses the symptom?—Verify repair Go to Step 3
3 Was a visual/physical check performed?
—Go to Step 4Go to Visual /
physical Check.
4 1. Remove and check the air filter element for dirt or
restrictions.
2. Replace the air filter element if necessary.
Was a repair required?—Verify repair Go to Step 5
5 Check the ECM grounds to verify that they are clean
and tight. Refer to the ECM wiring diagrams.
Was a problem found?—Verify repair Go to Step 6
6 1. Using a Tech 2, display the MAP sensor value in
comparison with atmosphere temperature.
2. Check for a faulty, plugged, or incorrectly installed
MAP sensor.
Was the problem found?—Verify repair Go to Step 7
7 1. Using a Tech 2, display the ECT sensor and IAT
sensor value and warm up condition compared
with the typical data.
2. Check the specified value or wire.
Was the problem found?—Verify repair Go to Step 8
8 Observe the throttle position display on the Tech 2
while slowly increasing throttle pedal.
Does the throttle position increase steady with
increasing smoothly?
—Go to Step 9Refer to
Diagnostic
Trouble Code
P0123 for
further
diagnosis
9 Check the knock sensor wire, shield wire, or
installation condition.
Was a problem found?—Verify repair Go to Step 10
10 Run Engine.
Check the fuel control Heated Ox ygen Sensor
(HO2S). When monitored on the Tech 2, the HO2S
should respond quickly to different throttle positions. If
it doesn’t check for silicon or other contaminates from
fuel or use of improper sealant. The sensors may
have a white powdery coating. Silicon contamination
sends a rich ex haust signal which causes the ECM to
command and excessively lean air/fuel mix ture.
Was a problem found?—Verify repair Go to Step 11
11 Check the fuel pressure. Refer to
Fuel System
Diagnosis
6E-108.
Was a problem found?—Verify repair Go to Step 12

HEATER AND AIR CONDITIONING 1-7
WIRING DIAGRAM (4JA1-T(L) WITH A/C)



RTW48AXF003601

IMMOBILIZER SYSTEM 11A-1

SECTION 11A
IMMOBILIZER SYSTEM
CONTENTS

Service Precaution.................................................
11A-2
General Description...............................................
11A-3
What happens without proper transponder
operation? ..........................................................
11A-6
No proper transponder is available, what
should be done for the system? ......................
11A-6
Caution to the operation.....................................
11A-6
Summary of operation........................................
11A-6
What your organization should provide for
your customer ....................................................
11A-6
Car Pass .............................................................
11A-6
Security code management ..............................
11A-6
Essential tool (Scan tool : Tech-2) ..................
11A-6
Circuit Diagram .................................................
11A-7
Parts Location.........................................................
11A-10
Immobilizer control unit (ICU); For Electronic
Control Engine (6VE1, C24SE, 4JH1-TC,
4JA1-TC) .......................................................... 11A-11
Pin-outs; For Electronic Control Engine
(6VE1, C24SE, 4JH1-TC, 4JA1-TC)...............
11A-12
Immobilizer control unit (ICU); Mechanical
Control Engine (4JA1-T) .................................. 11A-13
Immobilizer coil (Antenna) ...................................
11A-15
Transponder (Key) ............................................ 11A-15
Immobilizer warning lamp ................................. 11A-15
Engine control module (ECM) .......................... 11A-15
Car Pass Card .................................................. 11A-16
Loss of car pass card.........................................
11A-16
Instructions on Filling Out the form "Data
request, car pass" .............................................
11A-16
Important Instructions ........................................
11A-17
lmportant information on Programming .............
11A-19
Security code ......................................................
11A-19
Entering a code ..................................................
11A-19
Transponder (Key) .............................................
11A-19
Important .............................................................
11A-19
Tech-2 Scan Tool ..................................................
11A-20
Tech-2 Features .................................................
11A-21
Getting Started ...................................................
11A-21
Operating Procedure .........................................
11A-22
Menu ....................................................................
11A-23
DTC ......................................................................
11A-23
Clear DTC Information .......................................
11A-23
Tech-2 Data Display ...........................................
11A-23
Check Vehicle Identification Number (VIN) ....
11A-23
Reset Immobilizer (Reset Immobilizer
Control Unit) .......................................................
11A-23
Reset Engine Control Module (Reset ECM) ...
11A-24
Erase transponder key .......................................
11A-24
Programming Immobilizer Function .................
11A-25
Programming ICU ...............................................
11A-26
Programming ECM .............................................
11A-27
Programming ICU and ECM .............................
11A-28
Transponder program ........................................
11A-28
Data List ...............................................................
11A-30
Diagnostic procedure ............................................
11A-31
Clearing Diagnostic Trouble Codes ....................
11A-31
Verifying Vehicle Repair ........................................
11A-31
Diagnostic Aids ......................................................
11A-31
Check the condition for system parts ..............
11A-31
Check the Electro-Magnetic Interference
(EMI) ....................................................................
11A-31
Check the other items ........................................
11A-31
Check the operation ...........................................
11A-31
Diagnostic Trouble Code (DTC) list ....................
11A-32
IMMOBILIZER SYSTEM CHECK ........................
11A-33
NO IMMOBILIZER WARNING LAMP .................
11A-36
IMMOBILIZER WARNING LAMP ON STEADY 11A-37
B0001 REPLACE ELECTRONIC CONTROL
UNIT (ECU) (IMMOBILIZER FAULT) ................
11A-38
B0002 IMMOBILIZER NOT PROGRAMMED ....
11A-39
B0003 TRANSPONDER KEY PROBLEM ..........
11A-40
B0004 IMMOBILIZER COIL CIRCUIT
(ANTENNA COIL FAULT) ...................................
11A-42
B0005 COMMUNICATION LINE W VOLTAGE
LOW .......................................................................
11A-43
B0006 COMMUNICATION LINE W VOLTAGE
HIGH .......................................................................
11A-44
B0007 NO ENGINE REQUEST RECEIVED ......
11A-45
B0008 WRONG TRANSPONDER KEY .............
11A-47
B0009 NO TRANSPONDER KEY
PROGRAMMED ...................................................
11A-48

IMMOBILIZER SYSTEM 11A-7

Circuit Diagram





Gasoline Engine (6VE1, C24SE)




RAW4B0LF000501

ANTITHEFT SYSTEM 11B – 1
SECTION 11B
ANTITHEFT SYSTEM
CONTENTS
PAGE
Service Precaution ........................................................................................................ 11B – 3
General Description ...................................................................................................... 11B – 4
Activating the anti-theft system.............................................................................. 11B – 4
Antitheft system alarm operating conditions ........................................................ 11B – 4
Function of a keyless entry system ......................................................................... 11B – 4
Status LED ................................................................................................................. 11B – 4
Hazard relay ............................................................................................................... 11B – 4
Switches .................................................................................................................... 11B – 4
Receiver......................................................................................................................11B – 5
Range of communication ......................................................................................... 11B – 5
Diagnosis ................................................................................................................... 11B – 5
Transmitter (into remote key) .................................................................................. 11B – 5
Transmitter (into remote key) power ...................................................................... 11B – 5
Super lock .................................................................................................................. 11B – 5
No proper transmitter is available, what should be done for the system ?........ 11B – 6
DIAGRAMS AND SCHEMATICS ................................................................................... 11B – 7
SYSTEM WIRING DIAGRAMS .................................................................................. 11B – 7
COMPONENT WIRING LOCATORS (LHD) ............................................................... 11B – 8
WIRING DIAGRAM (LHD).......................................................................................... 11B – 9
WIRING DIAGRAM (LHD).......................................................................................... 11B – 10
WIRING DIAGRAM (LHD).......................................................................................... 11B – 11
WIRING DIAGRAM (LHD).......................................................................................... 11B – 12
WIRING DIAGRAM (RHD with keyless) ................................................................... 11B – 13
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 14
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 15
WIRING DIAGRAM (RHD) ......................................................................................... 11B – 16
WIRING DIAGRAM (RHD) ......................................................................................... 11B – 17
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 18
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 19
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 20
Antitheft control unit (A) .......................................................................................... 11B – 21

ANTITHEFT SYSTEM 11B – 7
DIAGRAMS AND SCHEMATICS
SYSTEM WIRING DIAGRAMS
M
M
M
M
M
M
M
M
- +
ANTITHEFT CONTROL UNIT BATTERY
(12V)
80A10A
ACC Ignition switch20A
10A
10A
antitheft horn
power supply
power supply
door lock motors
hazard relay(RH)
flashers(RH)
hazard relay(LH)
flashers(LH)
status LED
immobilizer controller
daiagnostc conector
groundlock lock
locklock lock alarm trigger
super lock
unlock unlock
(unlock)
(unlock)
unlock
driver door rear door(LH) rear door(RH)rear door(LH) rear door(RH)
assist door driver door assist doordriver door
assist door
driver door assist door
engine hood contact switch
door contact switch
auto door lock switch auto door lock
door lock cylinder
disarmwith super
lock without
super lock

ANTITHEFT SYSTEM 11B – 9
E
A
DE
CB D
D-24
D-26
D-14
D-4
D-20
L-7
H-14
R-1
P-1 D-9(EUROPE)
2nd Battery
D-18P-5
P-6
C-30 C-2
C-117
C-109
H-13
H-7
H-25
H-6
P-2R-9 L-1 L-9
JUNCTION BLOCK
B-8,B-7,B-40 RELAY
C-1
C20 FUSE
X-1
X-15 RELAY
EB-1EB16 FUSE X-16, X-17 DIODE
SBF-1SBF-9 SLOW BLOW FUSE
R-10
H-16
H-8
H-26 H-10
H-24R-6
RTW48AXF025201
WIRING DIAGRAM (LHD)

11B – 10 ANTITHEFT SYSTEM
RTW48AXF025301
B
C
Horn
switch
B-71IG1&IG2
H-27 B-55
B-56
B-62
B-63
C-108
H-6B-65
Antenna
cable
B-52H-13
H-25
B-58
B-80(RH)
B-81(LH)
H-26
H-10
H-24
B-44B-43
B-73
H-7
RTW48AXF025301
WIRING DIAGRAM (LHD)

ANTITHEFT SYSTEM 11B – 11
RTW48AXF025001
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-72 L-9
2
RR DEF
(1)
WELD
SPLICE MAP
LIGHT
C-109
BODY-CTR
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
0.85
O/W
0.85O/W 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-134
H-257
D-207
D-206H-104
H-247
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-810 C-117
1 6
H-620
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
RTW48AXF025001
WIRING DIAGRAM (LHD)