Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 10
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
6E–35
ECM WIRING DIAGRAM (5/7)
Batt
µP
Batt
µP
Batt
µP
0.5
BLK/
URG
0.5
BRN/
RED
0.5
BLU/
RED
0.5
BLU/
RED
4JA1-TC
0.5
GRY/
YEL
97
46
61
0.5
WHT/
RED
83
0.5
GRN/
RED
88
0.5
BLK/
RED
92
0.5
BLK/
BLU
84
IAT
Sensor
MAF &
IAT
Sensor
Rr Fog
Light
10A
EGR-
EVRV
0.5
WHT/
BLK
0.5
BLU/
RED
0.5
WHT/
BLU
0.5
BLU/
RED
0.5
GRN/
RED
0.5
BLU/
RED
Exhaust
Throttle
VSV2
Exhaust
Throttle
VSV1
Engine
Warming Up
SW
Thermo
SW
2
4
5
3
1
Battery
Voltage
ECM
Main Relay
IC
IC
IC
CPU
Engine
Control
Module
(ECM)
40
6E–36
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
ECM WIRING DIAGRAM (6/7)
0.5
BLK
0.5
GRN/
BLK
69
0.5
RED/
GRN
49
0.5
GRN/
ORG
38
0.5
BLK/
GRN
57
2.0
BLK
1
2.0
BLK
2
0.5
BLK/
PNK
93
0.5
GRY
ECT
Sensor
TPS &
Idle SW
89
0.5
WHT
98
101
0.5
GRN/
RED
CKP
Sensor
90
IC
IC
IC
IC
Engine
Control
Module
(ECM)
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
6E–37
ECM WIRING DIAGRAM (7/7)
µP
1.25
BLK
16 15 14 13 12 11 10 9
8 7 6 5 4 3 2 1
0.5
RED/
YEL
0.5
WHT
0.5
BLU
35
45
0.5
BRN/
YEL
42
IC
Stop
Light
10A
Meter
15A
Ignition
SW
Check
Engine
Lamp
Imnobiliser
Control Unit
Butery
Voltage
7
8
Engine
Control
Module
(ECM)
6E–38
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
ECM CONNECTOR PIN ASSIGNMENT & OUTPUT SIGNAL (4JA1-TC)
View Looking Into ECM Case
Pin
No.
B/Box
No.
Pin Function
Wire
Color
Signal or Continuity
ECM
Connection
Tester Position
Key SW Off
Key SW
On
Engine
Idle
Engine
2000rpm
Range
(+)
(-)
1
1
ECM Ground
BLK
Continuity
with ground
-
-
-
Disconnect
Ω
1
GND
2
2
ECM Ground
BLK
Continuity
with ground
-
-
-
Disconnect
Ω
2
GND
3
3
Battery Power Supply
BLU/RED
Less than 1V
Battery voltage
Connect
DC V
3
GND
25
25
No Connection
-
-
-
-
-
-
-
-
-
26
26
No Connection
-
-
-
-
-
-
-
-
-
27
27
Engine Speed Output
(To Tacho Meter)
BLU/RED
-
-
Approx.
23Hz by
wave form
or approx.
7.2V
Approx.
68Hz by
wave form
or approx.
7.5V
Connect
AC V
27
GND
28
28
No Connection
-
-
-
-
-
-
-
-
-
29
29
No Connection
-
-
-
-
-
-
-
-
-
30
30
Brake Switch 1 Signal
RED
Less than 1V
Battery voltage when pedal is
stepped on
Connect
DC V
30
GND
31
31
Clutch Switch Signal
YEL
Less than 1V
Battery voltage when pedal is not
stepped on
Connect
DC V
31
GND
32
32
No Connection
-
-
-
-
-
-
-
-
-
33
33
A/C Thermo Relay
GRN
Less than 1V
Battery voltage when A/C request
switch is turned on
Connect
DC V
33
GND
34
34
No Connection
-
-
-
-
-
-
-
-
-
35
35
Immobiliser Control
Unit (ICU B8)
RED/BLU
-
Wave form
-
-
-
-
36
36
No Connection
-
-
-
-
-
-
-
-
-
37
37
No Connection
-
-
-
-
-
-
-
-
-
38
38
Throttle Position
Sensor (TPS) Output
Signal
GRN/
ORG
Less than 1V
Less than 1V
Approx. 1V
Connect
DC V
38
49
39
39
Key Switch Input Signal
Via Engine Fuse
BLU/YEL
Less than 1V
Battery voltage
Connect
DC V
39
GND
40
40
Exhaust Throttle VSV 1 WHT/BLK
Less than 1V
Battery voltage when QWS is not
activated
Connect
DC V
40
GND
41
41
A/C Compressor Relay
BRN/RED
Less than 1V
Battery
voltage
Battery voltage when A/
C compressor is not
activated
Connect
DC V
41
GND
42
42
Check Engine Lamp
RED/YEL
Less than 1V
Battery voltage when lamp is turned
off
Connect
DC V
42
GND
43
43
Glow Lamp
ORG/BLU
Less than 1V
Battery voltage when lamp is turned
off
Connect
DC V
43
GND
44
44
No Connection
-
-
-
-
-
-
-
-
-
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