Isuzu Trooper (1998-2002 year). Manual — part 276
6E–17
ENGINE DRIVEABILITY AND EMISSIONS
PCM Pinouts
PCM Pinout Table, 32-Way Red Connector – Row “A”
TS23344
PIN
PIN Function
Wire Color
IGN ON
ENG RUN
Refer To
A1
5 Volt Reference “A”
RED
5.0 V
5.0 V
Appropriate Sensor
A2
Knock Sensor
YEL
0.0 V DC
2mV AC
0.0 V DC
18mV AC
(at idle)
General Description and
Operation, Knock Sensor
A3
Not Used
—
—
—
—
A4
Battery Feed
WHT
B+
B+
Chassis Electrical
A5
Idle Air Control (IAC) “A”
High
BLU
B+/0.8 V
B+/0.8 V
General Description and
Operation, IAC
A6
IAC “A” Low
BLU/WHT
B+/0.8 V
B+/0.8 V
General Description and
Operation, IAC
A7
IAC “B” Low
BLU/BLK
B+/0.8 V
B+/0.8 V
General Description and
Operation, IAC
A8
IAC “B” High
BLU/RED
B+/0.8 V
B+/0.8 V
General Description and
Operation, IAC
A9
Automatic Transmission
Fluid (ATF) Lamp
ORN/BLU
B+
B+
Automatic Transmission
(4L30E)
A10
Winter Lamp
PNK/GRN
B+
B+
Automatic Transmission
(4L30E)
A11
Power Lamp
GRY/WHT
B+
B+
Automatic Transmission
(4L30E)
A12
Antilock Brake System
(ABS)
GRY
B+
B+
Antilock Brake System
A13
Malfunction Indicator
(Check Engine or MIL)
Lamp
BLU
0.0 V
B+
Chassis Electrical
A14
“Check Transmission”
Lamp Driver (AT)
ORN/BLK
B+
B+
Chassis Electrical
Up Shift Lamp Driver (MT)
ORN/BLU
6E–18
ENGINE DRIVEABILITY AND EMISSIONS
PIN
Refer To
ENG RUN
IGN ON
Wire Color
PIN Function
A15
EVAP
RED/BLU
B+
5.0 V
—
A16
Band Apply (AT)
Air Pump (MT)
BRN/YEL
B+
B+
Automatic Transmission
(4L30E)
6E–19
ENGINE DRIVEABILITY AND EMISSIONS
PCM Pinout Table, 32-Way Red Connector – Row “B”
TS23344
PIN
PIN Function
Wire Color
IGN ON
ENG RUN
Refer To
B1
5 Volt Reference “B”
RED/YEL
5.0 V
5.0 V
Appropriate Sensor
B2
lgnition coil
RED/WHT
0.0 V
0.1 V
General Description and
Operation
B3
lgnition coil
RED/BLK
0.0 V
0.1 V
General Description and
Operation
B4
lgnition coil
RED/GRN
0.0 V
0.1 V
General Description and
Operation
B5
Not Used
—
—
—
—
B6
Not Used
—
—
—
—
B7
Exhaust Gas Recirculation
(EGR)
YEL/RED
0.6 V
0.6 V
General Description and
Operation, Linear EGR
Control
B8
Intake Air Temperature
(IAT) Sensor
YEL/GRN
0.5-4.9 V
(depends on
temperature)
0.5-4.9 V
(depends on
temperature)
General Description and
Operation, IAT
B9
Not Used
—
—
—
—
B10
Not Used
—
—
—
—
B11
Power Steering Pressure
(PSP) Switch
GRN/YEL
B+
B+
General Description and
Operation, PSP
B12
Illuminated Switch
GRN
B+
B+
Chassis Electrical
B13
Class 2 Data
ORN/GRN
0.0 V
0.0 V
Diagnosis, Class 2 Serial
Data
B14
A/C Clutch
GRN/BLK
B+
(A/C OFF)
B+
(A/C OFF)
General Description and
Operation, A/C Clutch Circuit
Operation
B15
ECM to ECU
Communication
Violet
0.0 V
0.1 V
—
B16
Not Used
—
—
—
—
6E–20
ENGINE DRIVEABILITY AND EMISSIONS
PCM Pinout Table, 32-Way White Connector – Row “C” (For EC)
TS23345
PIN
PIN Function
Wire Color
IGN ON
ENG RUN
Refer To
C1
Injector Cylinder #4
GRN/RED
B+
B+
General Description and
Operation, Fuel Injector
C2
Shift “B” Solenoid
BRN/BLK
0.0 V
0.0 V
Automatic Transmission
(4L30E)
C3
Injector Cylinder #6
GRN/YEL
B+
B+
General Description and
Operation, Fuel Injector
C4
Ignition Control (IC)
Cylinder #1
RED
0.0 V
0.1 V
General Description and
Operation, Fuel Injector
C5
Crankshaft Position
Sensor, “A” Circuit
YEL
0.3 V to 5 V
2.2 V
General Description and
Operation, Crankshaft
Position Sensor
C6
Not Used
—
—
—
—
C7
PCM Ground
YEL
0.0 V
0.0 V
Chassis Electrical
C8
PCM Ground
BLK/PNK
0.0 V
0.0 V
Chassis Electrical
C9
PCM Ground
BLK/BLU
0.0 V
0.0 V
Chassis Electrical
C10
Tachometer
BLK/RED
8.8 V
10.0 V
(at idle)
Chassis Electrical
C11
Variable Intake Manifold
YEL/BLK
0.0 V
B+ (rpm
3600 over)
Manual Transmission
C12
Alternator Control Gain
WHT/BLU
10.5 V
B+
Chassis Electrical
C13
Fuel PWM
BLU/PNK
B+
B+
—
C14
Bank 2 HO2S 1 High
PNK
0.4 V
0.1-0.9 V
General Description and
Operation, Fuel HO2S 1
C15
Bank 2 HO2S 1 Low
BLU
0.0 V
0.1 V
General Description and
Operation, Fuel HO2S 1
C16
Not Used
—
—
—
—
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