Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Service manual — part 11
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
6E–39
45
45
Data Link Connector
(No. 6)
BLU
Less than 1V
Battery voltage
Connect
DC V
45
GND
46
46
QWS Switch
BRN/RED
Less than 1V
Battery voltage when thermo switch
is closed
Connect
DC V
46
GND
47
47
No Connection
-
-
-
-
-
-
-
-
-
48
48
No Connection
-
-
-
-
-
-
-
-
-
49
49
Throttle Position
Sensor (TPS) Ground
RED/GRN
Idle: Approx.
0.4k
Ω/
WOT: Approx.
3.8k
Ω
-
-
-
Disconnect
Ω
38
49
50
50
No Connection
-
-
-
-
-
-
-
-
-
51
51
No Connection
-
-
-
-
-
-
-
-
-
52
52
No Connection
-
-
-
-
-
-
-
-
-
53
53
No Connection
-
-
-
-
-
-
-
-
-
54
54
No Connection
-
-
-
-
-
-
-
-
-
55
55
No Connection
-
-
-
-
-
-
-
-
-
56
56
No Connection
-
-
-
-
-
-
-
-
-
57
57
Throttle Position
Sensor (TPS) Power
Supply
BLK/GRN
Less than 1V
Approx. 5V
Connect
DC V
57
49
58
58
ECM Main Relay
BLU/BLK
Battery
voltage
Less than 1V
Connect
DC V
58
GND
59
59
No Connection
-
-
-
-
-
-
-
-
-
60
60
No Connection
-
-
-
-
-
-
-
-
-
61
61
No Connection
-
-
-
-
-
-
-
-
-
62
62
No Connection
-
-
-
-
-
-
-
-
-
63
63
ECM Power Supply
BLU/RED
Less than 1V
Battery voltage
Connect
DC V
63
GND
64
64
No Connection
-
-
-
-
-
-
-
-
-
65
65
Brake Switch 2 Signal
WHT/BLK
Less than 1V
Battery voltage when pedal is not
stepped on
Connect
DC V
65
GND
66
66
No Connection
-
-
-
-
-
-
-
-
-
67
67
No Connection
-
-
-
-
-
-
-
-
-
68
68
Vehicle Speed Sensor
(VSS) Via Speed Meter
BLU/WHT
-
Approx. 15Hz by wave form or
approx. 5.8V at vehicle speed
20km/h
Connect
AC V
68
GND
69
69
Idle Switch
GRN/BLK
Less than 1V
Approx. 5V when pedal is stepped on
Connect
DC V
69
GND
70
70
No Connection
-
-
-
-
-
-
-
-
-
71
71
No Connection
-
-
-
-
-
-
-
-
-
72
72
No Connection
-
-
-
-
-
-
-
-
-
73
73
No Connection
-
-
-
-
-
-
-
-
-
74
74
No Connection
-
-
-
-
-
-
-
-
-
75
75
No Connection
-
-
-
-
-
-
-
-
-
76
76
No Connection
-
-
-
-
-
-
-
-
-
77
77
No Connection
-
-
-
-
-
-
-
-
-
78
78
No Connection
-
-
-
-
-
-
-
-
-
79
79
No Connection
-
-
-
-
-
-
-
-
-
80
80
No Connection
-
-
-
-
-
-
-
-
-
81
81
No Connection
-
-
-
-
-
-
-
-
-
82
82
No Connection
-
-
-
-
-
-
-
-
-
83
83
Mass Air Flow (MAF)
Sensor Power Supply
WHT/RED
Less than 1V
Approx. 5V
Connect
DC V
83
92
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
(+)
(-)
6E–40
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
84
84
Intake Air Temperature
(IAT) Sensor Signal
BLK/BLU
Less than 1V
Approx. 2.5V at IAT 25°C
Connect
DC V
84
92
85
85
No Connection
-
-
-
-
-
-
-
-
-
86
86
No Connection
-
-
-
-
-
-
-
-
-
87
87
Neutral Switch
BLK/WHT
Less than 1V
Battery voltage at other than neutral
Connect
DC V
87
GND
88
88
Mass Air Flow (MAF)
Sensor Signal
GRN/RED
Less than 1V
Approx. 1V Approx. 2V Approx. 3V
Connect
DC V
88
92
89
89
Engine Coolant
Temperature (ECT)
Sensor Signal
GRY
Less than 1V
Approx. 1.3V at ECT 80°C
Connect
DC V
89
93
90
90
TDC Sensor Signal
RED
-
-
Approx.
47Hz by
wave form
or approx.
0.7V at
700rpm
Approx.
133Hz by
wave form
or approx.
1.0V
Connect
AC V
90
98
91
91
TDC Sensor Output To
Pump Control Unit
(PSG) No.8
PNK
-
-
Approx.
47Hz by
wave form
Approx.
133Hz by
wave form
-
-
-
-
92
92
Mass Air Flow (MAF)
Sensor Ground
BLK/RED
Continuity
with ground
-
-
-
Connect
Ω
92
GND
93
93
Engine Coolant
Temperature (ECT)
Sensor Ground
BLK/PNK
Continuity
with ground
-
-
-
Connect
Ω
93
GND
94
94
Glow Relay
BLK/BLU
Less than 1V
Battery voltage when glow system is
not activated
Connect
DC V
94
GND
95
95
No Connection
-
-
-
-
-
-
-
-
-
96
96
No Connection
-
-
-
-
-
-
-
-
-
97
97
EGR EVRV
BLK/ORG
-
Approx. 140Hz by wave
form when EVRV is
activated
-
-
-
-
98
98
TDC Sensor Ground
WHT
Continuity
with ground
-
-
-
Connect
Ω
98
GND
99
99
CAN (Controller Area
Network) to PSG No.1
RED
-
-
-
-
-
-
-
-
100
100
CAN (Controller Area
Network) to PSG No.2
WHT
-
-
-
-
-
-
-
-
101
101
TDC Sensor Shield
Line
-
Continuity
with ground
-
-
-
Connect
Ω
101
GND
102
102
No Connection
-
-
-
-
-
-
-
-
-
103
103
No Connection
-
-
-
-
-
-
-
-
-
104
104
No Connection
-
-
-
-
-
-
-
-
-
105
105
Fuel Cutoff Solenoid
Valve (MAB) Output
Signal to PSG No.5
ORG -
Wave
form
-
-
-
-
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
(+)
(-)
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
6E–41
PSG CONNECTOR PIN ASSIGNMENT & OUTPUT SIGNAL (4JA1-TC)
View Looking Into PSG Case
Pin
No.
B/Box
No.
Pin Function
Wire
Color
Signal or Continuity
PSG
Connection
Tester Position
Key SW Off
Key SW
On
Engine
Idle
Engine
2000rpm
Range
(+)
(-)
1
99
CAN (Controller Area
Network) to ECM
No.99
RED
Continuity
between ECM
& PSG
-
-
-
Disconnect
Ω
1
99
2
100
CAN (Controller Area
Network) to ECM
No.100
WHT
Continuity
between ECM
& PSG
-
-
-
Disconnect
Ω
2
100
3
-
No Connection
-
-
-
-
-
-
-
-
-
4
-
No Connection
-
-
-
-
-
-
-
-
-
5
105
Solenoid Valve Shut
Off (MAB) Output
Signal to ECM No.105
ORG Continuity
between ECM
& PSG
-
-
-
Disconnect
Ω
5
105
6
-
Ground
BLK
Continuity
with ground
-
-
-
Disconnect
Ω
6
GND
7
3
Battery Power Supply
BLU/RED
Continuity
between ECM
& PSG
-
-
-
Disconnect
Ω
7
3
8
91
TDC Sensor Output
ECM No.91 To Pump
Control Unit (PSG)
PNK
Continuity
between ECM
& PSG
-
-
-
Disconnect
Ω
8
91
9
-
No Connection
-
-
-
-
-
-
-
-
-
6E–42
4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS
ECM CONNECTOR PIN ASSIGNMENT & OUTPUT SIGNAL (4JH1-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
Throttle Position Signal
(AT Only)
BLK/RED
-
Approx. 140Hz by wave form (Idle:
Off duty 10% WOT: Off duty 90%)
-
-
-
-
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
(MT Only)
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
No Connection
WHT/BLK
-
-
-
-
-
-
-
-
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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