ISUZU TF SERIES 2004 Workshop Manual

4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS 6E–9
ABBREVIATION CHARTS
A bbreviations A ppellation
A/C Air conditioner
A/T Automatic transmission
ACC Accessory
BLK Black
BLU Blue
BRN Brown
CAN Controller Area Network
CEL Check engine lamp
CKP Crankshaft position sensor
DLC Data link connector
DTC Diagnosis trouble code
DVM Digital voltage meter
ECM Engine control module
ECT Engine coolant temperature
EEPROM Electrically erasable & programmable read only memory
EGR Ex haust gas recirculation
EVRV Electric vacuum regulating valve
GND Ground
GRY Gray
IAT Intake air temperature
IG Ignition
M/T Manual transmission
MAB High pressure solenoid valve cutoff (German abbreviation)
MAF Mass air flow
MIL Malfunction indicator lamp
OBD On-board diagnostic
ORN Orange
PNK Pink
RED Red
PSG Pump control unit (German abbreviation)
SW Switch
TCM Transmission control module
TCV Timing control valve
TDC Top dead center
TPS Throttle position sensor
VCC Voltage constunt control
VIO Violet
VSS Vehicle speed sensor
WHT Whi te
YEL Yellow

6E–10 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
COMPONENT LOCATOR
Engine Component Locator Table
4JA1-TC
3
1
2645
(1) Mass Air Flow (MAF) & Intake Air Temperature
(IAT) Sensor Assembly
(2) Throttle Cable
(3) Air Cleaner Case(4) Battery
(5) Relay & Fuse Box
(6) EGR Cooler

4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS 6E–11
4JH1-TC
312
6
45
4
(1) Mass Air Flow (MAF) & Intake Air Temperature
(IAT) Sensor Assembly
(2) Throttle Cable
(3) Air Cleaner Case(4) Battery
(5) Relay & Fuse Box
(6) EGR Cooler (Euro3) / EGR Pipe (Ex cept Euro3)

6E–12 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
324
1
(1) Throttle Position Sensor (TPS)
(2) Pump Control Unit (PSG)(3) Injection Pump Assembly
(4) Fuel Filter (Ex cept Euro 3)
213
(1) Mass Air Flow (MAF) & Intake Air Temperature
(IAT) Sensor Assembly
(2) EGR EVRV(3) Air Cleaner Case

4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS 6E–13
(1) Engine Control Module (ECM)
(1) Engine Coolant Temperature (ECT) Sensor
(2) Thermo Unit for Water Temperature Gauge
(1) Vehicle Speed Sensor (VSS)
21
(1) EGR EVRV
(2) To Vacuum Pump
(3) To EGR Valve
(1) Crankshaft Position (CKP) Sensor
(2) Clutch Housing
321
12

6E–14 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
ECM CIRCUIT DIAGRAM (4JA1-TC)

4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS 6E–15
ECM CIRCUIT DIAGRAM (4JA1-TC)

6E–16 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
ECM CIRCUIT DIAGRAM (4JH1-TC)

4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS 6E–17
ECM CIRCUIT DIAGRAM (4JH1-TC)

6E–18 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
GROUND POINT CHART GENERAL EXPORT (LHD) (1/4)