ISUZU KB P190 2007 Workshop Repair Manual

6E-24 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
A/C Control System and Glow Control System
RTW76EXF001701
9 C-107C-58
X-14
X-14 A/C
compressor
relay
13
5 2 X-5
X-5
H-4 Glow
relay
42
1
3
ECM
Ignition
signal
Thermo
relay
signal X-15
X-15 Thermo
relay
Refrigerant
pressure
switch 0.5
GRN/
YEL 0.5
GRN/
BLK 0.5
GRN/
ORN
0.5
GRN/
BLK 0.5
GRN/
ORN
3
BLK/
RED
Glow
plug
Compressor
clutch
Relay
control Relay
control
H-4
E-3
( )=A/T 0.5
BRN
0.5
GRN/
RED 0.5
BLK/
BLU
0.5
WHT/
GRN 3
RED/
WHT
3
BLK/
RED
0.5
GRN/
BLK
0.5
BRN
0.5
BRNEB-13
A/C
10A Fuse/
relay
box
(Engine room)
0.5
BRN
23 1
5
1 SBF8
Glow
60A Fuse/
relay
box
(Cabin)
C-6
Engine
10A
0.5
WHT/
GRN
0.5
WHT/
GRN
Starter
cut
relay Refer to
Power distribution
15 19
(28)
E-49
72
37
55
4

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-25
Transmission Range Switch and Neutral Switch
RTW76EXF005001
E-51
H-5
E-51
Transmission
range
switch
3
2
8 NP
X-16
X-16 C-94 C-95
TCM
Diode
4
2
3 0.75
WHT
0.5
RED/
BLK
0.5
RED/
BLK
0.5
RED/
BLK 0.5
YEL/
VIO
0.5
YEL/
VIO
0.5
YEL/
VIO 0.5
YEL/
VIO 0.5
RED/
BLK
0.5
RED/
GRN
9
2
10
2 Neutral
switch
M/T
Standard output
A/T
0.5
BLK/
WHT Reverse
lamp
switch
0.5
BLK/
WHT
0.85
WHT
0.85
WHT
0.75
WHT
1 E-11
13 H-4 1 E-12 0.85
WHT
3 H-4
3 H-4 E-51
H-5
E-51
Transmission
range
switch
4
5
6 NP
X-16
X-16 C-95
TCM
Diode
4
2
3 0.75
WHT
0.5
RED/
BLK
0.5
RED/
BLK
0.5
RED/
BLK 0.5
YEL/
VIO
0.5
YEL/
VIO
0.5
YEL/
VIO 0.5
YEL/
VIO 0.5
RED/
BLK
0.5
RED/
GRN
9
2
8
20 Neutral
switch
M/T
High output
A/T
0.5
BLK/
WHT
0.5
BLK/
WHT
0.85
WHT
0.75
WHT
2 E-111
13 H-4 1 E-111
C-10
Back up
15A
Fuse/
relay
box
(Cabin)
3 C-58 ECM
PorN
range/
Neutral
switch
signal

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ISUZU KB P190 2007

6E-26 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Brake Switch and Cruise Control
RTW76EXF004001
Brake
switch
C-44
4
C-44
3 Cruise
main
switch
Fuse /
relay
box
(Cabin)
4
3
3
1
4
2 0.5
GRY/
GRN
0.5
WHT/
GRN
0.5
GRN/
WHT
0.5
WHT/
GRN 6
12 0.3
GRN/
RED
0.3
RED/
GRN B-67
2
B-67
1
10
13
0.5
GRN/
WHT
H-18
50
0.5
WHT/
GRN
0.5
GRN 6
14
1
21 0.5
BRN/
YEL
9
29 Combination
switch
Set /
coast
switch
Resume /
accel.
switch
Cancel
switch
ECM
0.5
LT GRN
Set /
coast
switch
signal
Resume /
accel.
switch
signal
Cancel
switch
signal
IP cluster
Weld
splice2
Weld
splice 1
Cruise
main
switch
signal
Brake
switch 2
(Cruise release)
Brake
switch 1
(Stop lamp) B-59
C-58
12
30
0.5
WHT/
GRN
B-59
11
0.5
WHT/
GRN
0.5
WHT/
GRN
0.5
WHT/
GRN
0.5
RED
0.85
RED 0.85
GRN
H-7
C-107
9 C-6
Engine
10A
C-15
STOP
15A
Lamp
control
Except
Euro 4
Specification
Euro 4
Specification

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ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-27
Component Locator
Engine Controls Component Views
Legend1. Accelerator pedal position (APP) sensor

Legend
1. Barometric pressure (BARO) sensor (Standard output)

Legend 1. Crankshaft (CKP) sensor

Legend
1. Camshaft position (CMP) sensor
2. Engine coolant temperature (ECT) sensor

RTW56ESH004301
1
RTW76ESH002701
1
RTW76ESH002301
1
RTW56ESH002401
1 2

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ISUZU KB P190 2007

6E-28 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Legend1. Boost pressure sensor
2. Turbocharger nozzle control solenoid
3. Barometric pressure (BARO) sensor (High output)

Legend
1. Exhaust gas recirculation (EGR) valve
2. Intake throttle valve

Legend
1. Engine control module (ECM)
2. Mass air flow (MAF) sensor / intake air templature
(IAT) sensor

Legend
1. Fuel rail pressure (FRP) sensor
2. Pressure limiter valve
3. Fuel rail

RTW76ESH003501
1
23
RTW56ESH002601
1
2
RTW56ESH003101
1
2
RTW76ESH002101123

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ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-29
Legend1. Fuel temperature (FT) sensor
2. Fuel Rail Pressure (FRP) regulator

Legend
1. Fuel injector No.1 cylinder
2. Fuel injector No.2 cylinder
3. Fuel injector No.3 cylinder
4. Fuel injector No.4 cylinder

Legend
1. Swirl control solenoid valve
2. Swirl control actuator

Legend
1. Vehicle speed sensor (VSS) 2WD with A/T
2. Vehicle speed sensor (VSS) except 2WD with A/T
RTW56ESH002901
1
2
RTW56ESH003501
1
2
3
4
RTW76ESH002201
1 2
RTW56EMH000301
1
2

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ISUZU KB P190 2007

6E-30 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Legend1. Fuel pump resistor (A type)
Legend1. Fuel pump resistor (B type)
RTW76ESH004101
1
RTW76ESH004201
1

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ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-31
Engine Control Module (ECM) Connector
End Views
Engine Control Module (ECM)-J1
Connector No. E-90
Connector Color Gray
Test Adapter No. J-35616-64A
Pin No. Wire Color Pin Function
1 — Not used
2 — Not used
3 — Not used
4 — Not used
5 — Not used
6 — Not used
7 — Not used
8 — Not used
9 — Not used
10 — Not used
11 — Not used
12 — Not used
13 — Not used
14 — Not used
15 — Not used
16 — Not used
17 ORN BARO sensor low reference
18 PNK/ GRN BARO sensor signal
19 BLU/ GRN BARO sensor 5V reference
20 GRN Boost pressure sensor 5V
reference
21 YEL Boost pressure sensor signal
RTW76ESH003101
12345678910111213141516
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
Pin No. Wire Color
Pin Function
22 BLK Boost pressure sensor shield
ground
23 BLU Boost pressure sensor low
reference
24 YEL Cylinder #2 fuel injector control
25 BRN Cylinder #3 fuel injector control
26 WHT ECT sensor low reference
27 GRN/ RED ECT sensor signal
28 YEL/ RED FT sensor low reference
29 PNK FT sensor signal
30 RED EGR position sensor low
reference
31 WHT/ BLU EGR position sensor 5V reference
32 GRY EGR position sensor signal
33 BLU/ YEL Cylinder #1 fuel injector control
34 BLU/ YEL FRP regulator control high side
35 BLU Intake throttle position sensor low
reference
36 GRY Intake throttle position sensor 5V
reference
37 GRN CKP sensor 5V reference
38 BLK CKP sensor shield ground
39 BLU CKP sensor low reference
40 ORN/ BLU MAF sensor signal
41 BLU/ RED IAT sensor signal
42 BLK MAF sensor shield ground
43 WHT/ BLU MAF sensor low reference
44 BLK CMP sensor low reference
45 WHT CMP sensor signal
46 RED CMP sensor 5V reference
47 RED FRP sensor 5V reference
48 WHT FRP sensor signal
49 BLK FRP sensor shield ground
50 BLU/ RED FRP regulator low side
51 WHT Cylinder #3 fuel injector charge
voltage
52 BLU Cylinder #1 fuel injector charge
voltage
53 GRN Cylinder #4 fuel injector control
54 BLK/ YEL FRP regulator control high side
55 WHT Intake throttle drive voltage
56 RED Intake throttle control low side
57 ORN Intake throttle position sensor
signal

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6E-32 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Engine Control Module (ECM)-J2
Pin No. Wire ColorPin Function
58 YEL CKP sensor signal
59 PNK Fuel filter switch signal
60 — Not used
61 BLU/ GRN IAT sensor low reference
62 BRN EGR drive voltage
63 YEL EGR control low side
64 BLK CMP sensor shield ground
65 — Not used
66 ORN/ BLK Turbocharger nozzle control
solenoid valve control
67 YEL Swirl control solenoid valve
control
68 WHT FRP sensor signal
69 BLK FRP sensor low reference
70 BLU/ RED FRP regulator low side
71 RED Cylinder #2 fuel injector charge
voltage
72 PNK Cylinder #4 fuel injector charge
voltage
73 BLK Ground
Connector No. C-58
Connector Color Black
Test Adapter No. J-35616-64A
Pin No. Wire Color Pin Function
1 ORN Brake switch 2 signal
2 BLK/ GRN Diagnostic request switch
RTW76ESH003101
12345678910111213141516
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
Pin No. Wire Color
Pin Function
3 RED/ GRN P or N range switch (A/T)
BLK/ WHT Neutral switch (M/T)
4 GRN/ BLK Thermo relay signal
5 — Not used
6 — Not used
7 BLU APP sensor 3 5V reference
8 BL/ UWHT APP sensor 3 signal
9 ORN APP sensor 2 5V reference
10 BLU/ GRN APP sensor 2 signal 11 WHT APP sensor 1 5V reference
12 RED APP sensor 1 signal
13 GRY/ GRN Cruise cancel switch signal
14 WHT/ GRN Cruise main switch signal
15 — Not used
16 — Not used
17 — Not used
18 — Not used
19 YEL Clutch switch signal
20 — Not used
21 RED Brake switch 1 signal
22 — Not used
23 BLU/ RED APP sensor 3 low reference
24 BLK APP sensor 3 shield ground
25 ORN/ BLU APP sensor 2 low reference
26 BLK APP sensor 2 shield ground
27 BLK APP sensor 1 low reference
28 BLK APP sensor 1 shield ground
29 BRN/ YEL Cruise resume switch signal
30 LT GRN Cruise set switch signal
31 — Not used
32 — Not used
33 BLK/ RED Engine speed signal output
34 — Not used
35 ORN/ BLU Starter cut relay control
36 — Not used
37 BLK/ BLU Glow relay control
38 — Not used
39 — Not used
40 — Not used
41 — Not used
42 — Not used

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ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-33
Pin No. Wire ColorPin Function
43 — Not used
44 RED/ WHT Starter switch signal
45 BLU/ RED ECM main relay control
46 — Not used
47 — Not used
48 — Not used
49 GRN/ YEL Cruise set lamp control
50 GRN/ WHT Cruise main lamp control
51 — Not used
52 RED/ WHT Battery voltage (Back-up)
53 — Not used
54 ORN/ BLK Fuel pump relay control
55 GRY/ RED A/C compressor relay control
56 RED/ WHT Accelerator pedal position signal
output
57 BRN/ YEL MIL control
58 — Not used
59 — Not used
60 — Not used
61 — Not used
62 BLK/ YEL VSS signal
63 BLK Ground
64 — Not used
65 BLU/ RED ECM main relay control
66 YEL CAN High
67 BLU CAN Low
68 — Not used
69 BRN/ RED Fuel filter lamp control
70 ORN/ WHT Fuel consumption signal output
71 PNK/ WHT SVS lamp control (Euro 4
specification)
72 WHT/ GRN Ignition voltage
73 RED/ BLU Battery voltage

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