ISUZU TF SERIES 2004 Workshop Manual

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-35

ECM WIRING DIAGRAM (3/10)



RUW46EMF000201

6E-36 3.5L ENGINE DRIVEABILITY AND EMISSIONS

ECM WIRING DIAGRAM (4/10)



RTW46EMF000301

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-37

ECM WIRING DIAGRAM (5/10)



RTW36EMF000901

6E-38 3.5L ENGINE DRIVEABILITY AND EMISSIONS

ECM WIRING DIAGRAM (6/10)



RTW46ELF001001

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-39

ECM WIRING DIAGRAM (7/10)



RTW36EMF000201

6E-40 3.5L ENGINE DRIVEABILITY AND EMISSIONS

ECM WIRING DIAGRAM (8/10)




RTW36ELF000101

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-41

ECM WIRING DIAGRAM (9/10)



RTW36EMF000101

6E-42 3.5L ENGINE DRIVEABILITY AND EMISSIONS

ECM WIRING DIAGRAM (10/10)




RTW36EMF000801

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-43
ECM CONNECTOR PIN ASSIGNMENT & OUTPUT SIGNAL
Connector A Port: View Looking Into ECM Case





Signal or Continuity Tester Position Pin
No.

B/Box
No.
Pin Function Wire
Color
Key SW
Off Key SW
On Engine
Idle Engine
2000rpmECM
Connection Range(+) (-)
A1 A1 No Connection - - - - - - - - -
A2 A2 No Connection - - - - - - - - -
A3 A3 No Connection - - - - - - - - -
A4 A4 Ground (Case) BLK/
RED Continuity
with ground - - - Disconnect Ohm A4 GND
A5 A5 EGR Valve
Control Duty
Signal YEL Less than 1V 10-14V Wave form Connect DC V A5 GND
A6 A6 ECM Main
Relay BLU/
YEL While main
relay is
activated:
10-14V
Main relay is
not activated:
Less than 1V 10-14V Connect DC V A6 GND
A7 A7 Ground BLK/
YEL Continuity
with ground - - - Disconnect Ohm A7 GND
A8 A8 Ground BLK/
YEL Continuity
with ground - - - Disconnect Ohm A8 GND
A9 A9 EGR Valve
Position Signal YEL/
RED Less than 1V 0.5-0.8V Connect DC V A9 GND
A10 A10 CAN (Controller
Area Network)
to TCM A17 RED - - - - - - - -
A11 A11 CAN (Controller
Area Network)
to TCM A7 WHT - - - - - - - -
A12 A12 No Connection - - - - - - - - -
A13 A13 No Connection - - - - - - - - -

6E-44 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Signal or Continuity Tester Position Pin
No.

B/Box
No.
Pin Function Wire
Color
Key SW
Off Key SW
On Engine
Idle Engine
2000rpmECM
Connection Range(+) (-)
A14 A14 No Connection - - - - - - - - -
A15 A15 No Connection - - - - - - - - -
A16 A16 No Connection - - - - - - - - -
A17 A17 No Connection - - - - - - - - -
A18 A18 No Connection - - - - - - - - -
A19 A19 Intake Air
Temperature
(IAT) Sensor
Signal YEL/
GRN Less than 1V0 deg. C: Approx. 3.5V / 20 deg. C: Approx.
2.5V / 40 deg. C: Approx. 1.6V / 60 deg. C:
0.9V / 80 deg. C: 0.6V Connect DC V A19 B39
A20 A20 No Connection - - - - - - - - -
A21 A21 Engine Coolant
Temperature
(ECT) Sensor
Signal BLU/
RED Less than 1V0 deg. C: Approx. 3.6V / 20 deg. C: Approx.
2.4V / 40 deg. C: Approx. 1.4V / 60 deg. C:
3.4V / 80 deg. C: 2.6V Connect DC V A21 A22
A22 A22 EGR Valve &
ECT Sensor
Ground YEL/
BLK Continuity
with ground - - - Connect Ohm A22 GND
A23 A23 Crank Position
(CKP) Sensor
Signal YEL - - Wave form or approx. 1.9V Connect AC V A23 A25
A24 A24 Crank Position
(CKP) Sensor &
EGR Valve +5V
Supply RED/
BLU Less than 1V Approx. 5V Connect DC V A24 A25
A25 A25 Crank Position
(CKP) Sensor
Ground YEL/
BLK Continuity
with ground - - - Connect Ohm A25 GND
A26 A26 No Connection - - - - - - - - -
A27 A27 No Connection - - - - - - - - -
A28 A28 ECM Main
Relay BLU/
RED While main
relay is
activated:
Less than 1V
Main relay is
not activated:
10-14V Less than 1V Connect DC V A28 GND
A29 A29 No Connection - - - - - - - - -
A30 A30 No. 5 Ignition
Coil RED/
YEL - - Wave form - - - -