alternator OPEL FRONTERA 1998 Workshop Manual

6E–20
ENGINE DRIVEABILITY AND EMISSIONS
PCM Pinout Table, 32-Way White Connector – Row “C” (For EC)
TS23345
PINPIN FunctionWire ColorIGN ONENG RUNRefer To
C1Injector Cylinder #4GRN/REDB+B+General Description and
Operation, Fuel Injector
C2Shift “B” SolenoidBRN/BLK0.0 V0.0 VAutomatic Transmission
(4L30E)
C3Injector Cylinder #6GRN/YELB+B+General Description and
Operation, Fuel Injector
C4Ignition Control (IC)
Cylinder #1RED0.0 V0.1 VGeneral Description and
Operation, Fuel Injector
C5Crankshaft Position
Sensor, “A” CircuitYEL0.3 V to 5 V2.2 VGeneral Description and
Operation, Crankshaft
Position Sensor
C6Not Used————
C7PCM GroundYEL0.0 V0.0 VChassis Electrical
C8PCM GroundBLK/PNK0.0 V0.0 VChassis Electrical
C9PCM GroundBLK/BLU0.0 V0.0 VChassis Electrical
C10TachometerBLK/RED8.8 V10.0 V
(at idle)Chassis Electrical
C11Variable Intake ManifoldYEL/BLK0.0 VB+ (rpm
3600 over)Manual Transmission
C12Alternator Control GainWHT/BLU10.5 VB+Chassis Electrical
C13Fuel PWMBLU/PNKB+B+—
C14Bank 2 HO2S 1 HighPNK0.4 V0.1-0.9 VGeneral Description and
Operation, Fuel HO2S 1
C15Bank 2 HO2S 1 LowBLU0.0 V0.1 VGeneral Description and
Operation, Fuel HO2S 1
C16Not Used————

6E–339 ENGINE DRIVEABILITY AND EMISSIONS
0005
PCM Components
The PCM is designed to maintain exhaust emission levels
to government mandated standards while providing
excellent driveability and fuel efficiency. The PCM
monitors numerous engine and vehicle functions via
electronic sensors such as the throttle position (TP)
sensor, heated oxygen sensor (HO2S), and vehicle
speed sensor (VSS). The PCM also controls certain
engine operations through the following:
Fuel injector control
Ignition control module
Knock sensor
Automatic transmission shift functions
Cruise control
A/C clutch control
PCM Voltage Description
The PCM supplies a buffered voltage to various switches
and sensors. It can do this because resistance in the
PCM is so high in value that a test light may not illuminate
when connected to the circuit. An ordinary shop
voltmeter may not give an accurate reading because the
voltmeter input impedance is too low. Use a 10-megohm
input impedance digital voltmeter (such as J 39200) to
assure accurate voltage readings.
The input/output devices in the PCM include
analog-to-digital converters, signal buffers, counters,
and special drivers. The PCM controls most components
with electronic switches which complete a ground circuit
when turned “ON.” These switches are arranged in
groups of 4 and 7, called either a surface-mounted quad
driver module (QDM), which can independently control up
to 4 output terminals, or QDMs which can independently
control up to 7 outputs. Not all outputs are always used.
PCM Input/Outputs
Inputs – Operating Conditions Read
Air Conditioning “ON” or “OFF”
Engine Coolant Temperature
Crankshaft Position
Exhaust Oxygen Content
Electronic Ignition
Manifold Absolute Pressure
Battery Voltage
Throttle Position
Vehicle Speed
Fuel Pump Voltage
Power Steering Pressure
Intake Air Temperature
Mass Air Flow
Engine Knock
Camshaft Position
Outputs – Systems Controlled
Exhaust Gas Recirculation (EGR)
Ignition Control
Fuel Control
Idle Air Control
Electric Fuel Pump
Air Conditioning
Diagnostics
– Malfunction Indicator Lamp (Service Engine Soon
lamp)
– Data Link Connector (DLC)
– Data Output
Transmission Control Module
Alternator Gain Control
PCM Service Precautions
The PCM is designed to withstand normal current draws
associated with vehicle operation. Avoid overloading any
circuit. When testing for opens and shorts, do not ground
or apply voltage to any of the PCM’s circuits unless
instructed to do so. These circuits should only be tested
Tech-2. The PCM should remain connected to the PCM
or to a recommended breakout box.
Reprogramming The PCM
The Trooper allow reprogramming of the PCM without
removing it from the vehicle . This provides a flexible and
cost-effective method of making changes in software
calibrations.
The service programming system (SPS) will not allow
incorrect software programming or incorrect calibration
changes.
Refer to the UBS 98model year Immobilizer Workshop
Manual.
Throttle Position (TP) Sensor
The throttle position (TP) sensor is a potentiometer
connected to the throttle shaft on the throttle body. The
PCM monitors the voltage on the signal line and
calculates throttle position. As the throttle valve angle is
changed (accelerator pedal moved), the TP sensor signal
also changes. At a closed throttle position, the output of

6E–20
ENGINE DRIVEABILITY AND EMISSIONS
PCM Pinout Table, 32-Way White Connector – Row “C” (For EC)
TS23345
PINPIN FunctionWire ColorIGN ONENG RUNRefer To
C1Injector Cylinder #4GRN/REDB+B+General Description and
Operation, Fuel Injector
C2Shift “B” SolenoidBRN/BLK0.0 V0.0 VAutomatic Transmission
(4L30E)
C3Injector Cylinder #6GRN/YELB+B+General Description and
Operation, Fuel Injector
C4Ignition Control (IC)
Cylinder #1RED0.0 V0.1 VGeneral Description and
Operation, Fuel Injector
C5Crankshaft Position
Sensor, “A” CircuitYEL0.3 V to 5 V2.2 VGeneral Description and
Operation, Crankshaft
Position Sensor
C6Not Used————
C7PCM GroundYEL0.0 V0.0 VChassis Electrical
C8PCM GroundBLK/PNK0.0 V0.0 VChassis Electrical
C9PCM GroundBLK/BLU0.0 V0.0 VChassis Electrical
C10TachometerBLK/RED8.8 V10.0 V
(at idle)Chassis Electrical
C11Variable Intake ManifoldYEL/BLK0.0 VB+ (rpm
3600 over)Manual Transmission
C12Alternator Control GainWHT/BLU10.5 VB+Chassis Electrical
C13Fuel PWMBLU/PNKB+B+—
C14Bank 2 HO2S 1 HighPNK0.4 V0.1-0.9 VGeneral Description and
Operation, Fuel HO2S 1
C15Bank 2 HO2S 1 LowBLU0.0 V0.1 VGeneral Description and
Operation, Fuel HO2S 1
C16Not Used————

6E–339 ENGINE DRIVEABILITY AND EMISSIONS
0005
PCM Components
The PCM is designed to maintain exhaust emission levels
to government mandated standards while providing
excellent driveability and fuel efficiency. The PCM
monitors numerous engine and vehicle functions via
electronic sensors such as the throttle position (TP)
sensor, heated oxygen sensor (HO2S), and vehicle
speed sensor (VSS). The PCM also controls certain
engine operations through the following:
Fuel injector control
Ignition control module
Knock sensor
Automatic transmission shift functions
Cruise control
A/C clutch control
PCM Voltage Description
The PCM supplies a buffered voltage to various switches
and sensors. It can do this because resistance in the
PCM is so high in value that a test light may not illuminate
when connected to the circuit. An ordinary shop
voltmeter may not give an accurate reading because the
voltmeter input impedance is too low. Use a 10-megohm
input impedance digital voltmeter (such as J 39200) to
assure accurate voltage readings.
The input/output devices in the PCM include
analog-to-digital converters, signal buffers, counters,
and special drivers. The PCM controls most components
with electronic switches which complete a ground circuit
when turned “ON.” These switches are arranged in
groups of 4 and 7, called either a surface-mounted quad
driver module (QDM), which can independently control up
to 4 output terminals, or QDMs which can independently
control up to 7 outputs. Not all outputs are always used.
PCM Input/Outputs
Inputs – Operating Conditions Read
Air Conditioning “ON” or “OFF”
Engine Coolant Temperature
Crankshaft Position
Exhaust Oxygen Content
Electronic Ignition
Manifold Absolute Pressure
Battery Voltage
Throttle Position
Vehicle Speed
Fuel Pump Voltage
Power Steering Pressure
Intake Air Temperature
Mass Air Flow
Engine Knock
Camshaft Position
Outputs – Systems Controlled
Exhaust Gas Recirculation (EGR)
Ignition Control
Fuel Control
Idle Air Control
Electric Fuel Pump
Air Conditioning
Diagnostics
– Malfunction Indicator Lamp (Service Engine Soon
lamp)
– Data Link Connector (DLC)
– Data Output
Transmission Control Module
Alternator Gain Control
PCM Service Precautions
The PCM is designed to withstand normal current draws
associated with vehicle operation. Avoid overloading any
circuit. When testing for opens and shorts, do not ground
or apply voltage to any of the PCM’s circuits unless
instructed to do so. These circuits should only be tested
Tech-2. The PCM should remain connected to the PCM
or to a recommended breakout box.
Reprogramming The PCM
The Trooper allow reprogramming of the PCM without
removing it from the vehicle . This provides a flexible and
cost-effective method of making changes in software
calibrations.
The service programming system (SPS) will not allow
incorrect software programming or incorrect calibration
changes.
Refer to the UBS 98model year Immobilizer Workshop
Manual.
Throttle Position (TP) Sensor
The throttle position (TP) sensor is a potentiometer
connected to the throttle shaft on the throttle body. The
PCM monitors the voltage on the signal line and
calculates throttle position. As the throttle valve angle is
changed (accelerator pedal moved), the TP sensor signal
also changes. At a closed throttle position, the output of