For 1990-2009 cars

## Scan Tool Data List Except Holden

The Engine Scan Tool Data List contains all engine related parameters that are available on the scan tool. The list is arranged in alphabetical order. A parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.

Use the Engine Scan Tool Data List only after the following conditions are determined:

• | The Diagnostic System Check - Engine Controls is completed.

• | There are no diagnostic trouble codes (DTCs).

• | The on-board diagnostics are functioning correctly.

Scan tool values from an engine that is operating correctly may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents the values that would be seen on a normal operating engine.

Important: Do not use a scan tool that displays faulty data. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool may result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service information for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Engine Controls for diagnosis.

The column labeled Data List indicates where a parameter is located on the scan tool. Review the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:

All: The Parameter is in all data lists indicated below.
Eng 1: Engine Data 1
Eng 2: Engine Data 2
Eng 3: Engine Data 3
HO2S: HO2S Data

Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values
--- | --- | --- | ---
Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop/Accessories Off
A/C High Side Pressure Sensor | Eng 2 | 0-5 Volts | Varies
A/C High Side Pressure Sensor | Eng 2, 3 | kPa/psi | Varies
A/C Relay Command | Eng 3 | On/Off | Off
APP Sensor 1 | Eng 2 | 0-5 Volts | 0.6-0.8 Volts
APP Sensor 2 | Eng 2 | 0-5 Volts | 0.3-0.5 Volts
BARO | Eng 2 | 65-104 kPa | Varies with altitude
Cruise Control ON/OFF Switch | Eng 2 | ON/OFF | OFF
Cruise Control Set/Coast Switch | Eng 2 | ON/OFF | OFF
Cruise Control Resume/Accel Switch | Eng 2 | ON/OFF | OFF
Cruise Control | Eng 2 | ON/OFF | OFF
Desired Idle Speed | Eng 2 | 0-8,000 RPM | 670 RPM
DTC Set This Ignition | Eng 1 | Yes/No | No
ECT Sensor | Eng 1 | -40 to +130°C (-40 to +266°F) | Varies
ECT Sensor | Eng 2 | 0-5 Volts | Varies
EC Ignition Relay Command | Eng 3 | On/Off | On
EGR Position Sensor | Eng 2 | 0-5 Volts | 0.6-0.75 Volts
EGR Solenoid Command | Eng 2, 3 | 0-100% | 0%
Engine Load | Eng 1 | 0-99% | 20-30% - Idle 10-20% - 2500 RPM
Engine Run Time | HO2S | HH:MM:SS | Varies
Engine Speed | ALL | 0-8,000 RPM | 650-750 RPM
EVAP Purge Solenoid Command (If Equipped) | Eng 2, 3 | 0-100% | Varies
Fan High | Eng 3 | On/Off | Varies
Fan Low | Eng 3 | On/Off | Varies
Fuel Gage Control | Eng 3 | 0-100% | Varies
Fuel Level Sensor | Eng 2, 3 | 0-5 Volts | Varies
Fuel Level Sensor | Eng 2, H02S | 0-100% | Varies
Fuel Pump Relay Command | Eng 3 | On/Off | On
HO2S Bank 1 and 2 Sensor 1 | Eng 1, H02S | 0-1,006 mV | Varies 400-800 mV
HO2S Bank 1 and 2 Sensor 2 | Eng 1, H02S | 0-1,006 mV | Varies 400-800 mV
HO2S Htr. Bn. 1 and 2 Sen. 1 Command | H02S | 0-100% | Varies
HO2S Htr. Bn. 1 and 2 Sen. 2 Command | H02S | 0-100% | Varies
IAT Sensor | Eng 1 | -39 to +140°C (-38 to +284°F) | Varies
IAT Sensor | Eng 2 | 0-5 Volts | Varies
IMT Valve Command | Eng 3 | Open/Closed | Closed
IMT Valve Position Sensor | Eng 3 | 0-5 Volts | 0.9-1.1 Volts
Ignition 1 Signal | Eng 2, 3, HO2S | 6-24 Volts | 12-15 Volts
Injector PWM Bank 1 and 2 Average | Eng 2 | 000.0-999.9 ms | 2.6-3.8 ms
Knock Sensor | Eng 2 | 0-5 Volts | Varies
Long Term FT Bank 1 and 2 | Eng 1 | -50 to +50% | -3 to +3%
Loop Status Bank 1 and 2 | Eng 1 | Open Loop/Closed Loop | Closed Loop
MAF Sensor | Eng 1 | g/s | 3.2-4.6 g/s
MAF Sensor | Eng 2 | 0-5 Volts | 0.4-0.8 Volts
MAP Sensor | All | kPa/PSI | 32-40 kPa Varies with Altitude
MAP Sensor | Eng 2 | 0-5 Volts | 1.15-1.3 Volts
MIL Command | Eng 1 | On/Off | Off
Short Term FT Average Bank 1 and 2 | H02S | -50 to +50% | -3 to +3%
Short Term FT Bank 1 and 2 | Eng 1, HO2S | -50 to +50% | -3 to +3%
Spark | Eng 1 | -20 to +40 Degrees | 2-10 Degrees
TAC Motor Command | Eng 2 | 0-100% | Varies
TP Indicated Angle | Eng 1 | Degrees | 6-14%
TP Sensor 1 | Eng 2 | 0-5 Volts | 0.5-0.8 Volts
TP Sensor 2 | Eng 2 | 0-5 Volts | 4.2-4.5 Volts
Transmission Gear Selector Signal | Eng 3, H02S | Park/Neutral/In Gear | Park/Neutral
Vehicle Security Status (If Equipped) | Eng 3 | Enabled/Disabled | Disabled
Vehicle Speed Sensor | ALL | km/h mph | 0 km/h (0 mph)

## Scan Tool Data List Holden

The Engine Scan Tool Data List contains all engine related parameters that are available on the scan tool. The list is arranged in alphabetical order. A parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.

Use the Engine Scan Tool Data List only after the following conditions are determined:

• | The Diagnostic System Check - Engine Controls is completed.

• | There are no diagnostic trouble codes (DTCs).

• | The on-board diagnostics are functioning correctly.

Scan tool values from an engine that is operating correctly may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents the values that would be seen on a normal operating engine.

Important: Do not use a scan tool that displays faulty data. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool may result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service information for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Engine Controls for diagnosis.

Scan Tool Parameter | System State | Expected Values | Description
--- | --- | --- | ---
Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop/Accessories Off
A/C Pressure (Air Conditioning) | On Off | 0-5 Volts | This parameter displays the voltage from the A/C high side pressure sensor signal circuit to the control module.
A/C Pressure (Air Conditioning) | On Off | kPa | This parameter displays the pressure from the A/C high side pressure sensor signal circuit to the control module.
A/C Relay (Air Conditioning) | On Off | - | This parameter displays the state of the air conditioning (A/C) clutch relay control circuit as commanded by the control module.
APP Sensor 1 (Accelerator Pedal Position) | - | 0-5 Volts | This parameter displays the actual voltage of the accelerator pedal position (APP) sensor 1 signal circuit as measured by the control module.
APP Sensor 2 (Accelerator Pedal Position) | - | 0-5 Volts | This parameter displays the actual voltage of the accelerator pedal position (APP) sensor 2 signal circuit as measured by the control module.
B1 Average Injection Time (Bank 1) | - | ms | This parameter displays the amount of fuel injector ON time or pulse width as commanded by the engine control module.
B1 Long Term Fuel Trim (Bank 1) | - | -50 to +50% | This parameter displays the commanded Long Term Fuel Trim correction by the control module.
B1 Short Term Fuel Trim (Bank 1) | - | -50 to +50% | This parameter displays the commanded Short Term Fuel Trim correction by the control module.
B1S1 O2 Sensor (Bank 1 Sensor 1) | - | 0-1,006 mV | This parameter displays the voltage output from the HO2S to the control module. A lower voltage indicates a lean exhaust, while a higher voltage indicates a rich exhaust.
B1S1 O2 Sensor Heater (Bank 1 Sensor 1) | - | 0-100% | This parameter displays the % of the O2 sensor heater.
B1S2 O2 Sensor (Bank 1 Sensor 2) | - | 0-1,006 mV | This parameter displays the voltage output from the HO2S to the control module. A lower voltage indicates a lean exhaust, while a higher voltage indicates a rich exhaust
B1S2 O2 Sensor Heater (Bank 1 Sensor 2) | - | 0-100% | This parameter displays the % of the O2 sensor heater.
B2 Average Injection Time (Bank 2) | - | ms | This parameter displays the amount of fuel injector ON time or pulse width as commanded by the engine control module.
B2 Long Term Fuel Trim (Bank 2) | - | -50 to +50% | This parameter displays the commanded Long Term Fuel Trim correction by the control module.
B2 Short Term Fuel Trim (Bank 2) | - | -50 to +50% | This parameter displays the commanded Short Term Fuel Trim correction by the control module.
B2 Short Term Fuel Trim (Bank 2) | - | -50 to +50% | This parameter displays percentage. This parameter indicates the average of the short term fuel trim cells. The short fuel trim cells are rated, or weighted for the amount of which they are used. For example, the control module rates an idle cell higher then a wide open cell. If a fueling malfunction occurs in the idle cell and the wide open, the idle cell would effect more than the wide open cell. If the oxygen sensor indicates a lean air/fuel mixture, the control module will add fuel increasing the short term fuel trim above 0. If the oxygen sensor indicates a rich air/fuel mixture, the control module will reduce fuel decreasing the short term fuel trim below 0.
B2S1 O2 Sensor (Bank 2 Sensor 1) | - | 0-1,006 mV | This parameter displays the voltage output from the HO2S to the control module. A lower voltage indicates a lean exhaust, while a higher voltage indicates a rich exhaust.
B2S1 O2 Sensor Heater (Bank 2 Sensor 1) | - | % | This parameter displays the % of the O2 sensor heater.
B2S2 O2 Sensor (Bank 2 Sensor 2) | - | mV | This parameter displays the voltage output from the HO2S to the control module. A lower voltage indicates a lean exhaust, while a higher voltage indicates a rich exhaust.
B2S2 O2 Sensor Heater (Bank 2 Sensor 2) | - | % | This parameter displays the % of the O2 sensor heater.
Barometric Pressure | - | 65-104 kPa | This parameter displays the barometric pressure. The control module uses the manifold absolute pressure sensor to determine the barometric pressure. The control module uses the barometric pressure for fuel control to compensate for altitude differences.
Battery Voltage | On Off | Battery Voltage | This parameter displays 0 to 30 Volts. The voltage measured between the module’s battery positive voltage circuit and ground circuit.
Coolant Temperature | - | -40 to +130°C (-40 to +266°F) | This parameter displays the temperature of the engine coolant based on input to the control module from the engine coolant temperature (ECT) sensor.
Coolant Temperature | - | 0-5 Volts | This parameter displays the voltage of the engine coolant based on input to the control module from the engine coolant temperature (ECT) sensor.
Cooling Fan High Speed | On Off | - | This parameter displays the control module commanded state of the high speed cooling fan relay.
Cooling Fan Low Speed | On Off | - | This parameter displays the control module commanded state of the low speed cooling fan relay.
Cruise Control | Off On Resume Accel Set

Coast

-

This parameter displays the state of the on/off switch input to the control module . The scan tool will display On when the cruise ON/OFF switch is on. The scan tool will display OFF when the cruise ON/OFF switch is OFF.

Cruise Resume/Accel Switch: This parameter displays the state of the Resume/Accel switch input to the control module When the cruise control switch is in the on position and the Resume/Accel switch is activated, the scan tool displays On. When the Resume/Accel switch is released the scan tool displays Off.

Cruise Set/Coast Switch: This parameter displays the state of the Set/Coast switch input to the control module from the cruise control system. When the cruise control switch is in the on position and the Set/Coast switch is activated, the scan tool displays On. When the Set/Coast switch is released the scan tool displays Off.

Desired Engine Idle Speed | - | RPM | This parameter displays the desired engine idle speed as commanded by the control module.
EGR Position Command (Exhaust- Gas Recirculation) | - | 0-100% | This parameter displays the state of the control circuit for EGR solenoid as commanded by the control module.
EGR Position Feedback (Exhaust Gas Recirculation) | - | 0-5 Volts | This parameter displays the actual EGR pintle position in volts.
Engine Runtime | - | h:m:s | This parameter displays the time elapsed since the engine was started.
Engine Speed | - | RPM | This parameter displays the speed of the engine crankshaft rotation from information received from the crankshaft position (CKP) sensor.
EVAP Purge Solenoid (Evaporative Emission) | - | 0-100% | This parameter displays the on-time or duty cycle of the EVAP canister purge solenoid commanded by the control module. Zero percent indicates no purge. One hundred percent indicates full purge.
Fuel Level Sensor | - | 0-5 Volts | This parameter displays the voltage signal received by the control module from the fuel level sensor.
Fuel Level Sensor | - | 0-100% | This parameter displays the percentage signal received by the control module from the fuel level sensor.
Fuel Pump Relay | Active Inactive | - | This parameter displays the control modules commanded state of the fuel pump relay control circuit.
Intake Air Temperature | - | -39 to +140°C (-38 to +284°F) | This parameter displays the temperature of the air entering the air induction system based on input to the control module from the intake air temperature (IAT) sensor.
Intake Air Temperature | - | 0-5 Volts | This parameter displays the voltage intake air temperature (IAT) sensor.
Knock Retard Cylinder 1 | - | °CA | This parameter indicates how much ignition spark timing is being retarded due to all control systems monitored by the engine control module. The scan tool will display a high value during extreme conditions such as high temperatures and antilock braking. The scan tool will display a lower value during lighter driving conditions.
Knock Retard Cylinder 2 | -
Knock Retard Cylinder 3 | -
Knock Retard Cylinder 4 | -
Knock Retard Cylinder 5 | -
Knock Retard Cylinder 6 | -
MAP Sensor (Manifold Absolute Pressure) | - | kPa | This parameter displays the pressure from the manifold absolute pressure (MAP) sensor to the control module.
MAP Sensor (Manifold Absolute Pressure) | - | 0-5 Volts | This parameter displays the signal voltage from the manifold absolute pressure (MAP) sensor to the control module.
Mass Air Flow Sensor | - | mg/strk | This parameter displays the measured quantity of air flowing into the engine during all operating conditions.
Spark | - | ° | This parameter displays the amount of spark advance the control module is commanding on the ignition control circuits. The control module determines the desired advance.
Throttle Position PWM Servo Signal | - | % | This parameter displays the percent of throttle opening as calculated by the control module using information from the TP sensor.
Throttle Position Sensor | - | ° | This parameter displays the degrees of throttle opening as calculated by the control module using information from the TP sensor.
TP Sensor 1 (Throttle Position) | - | 0-5 Volts | This parameter displays the actual voltage of the throttle position (TP) sensor 1 signal circuit as measured by the control module.
TP Sensor 2 (Throttle Position) | - | 0-5 Volts | This parameter displays the actual voltage of the throttle position (TP) sensor 2 signal circuit as measured by the control module.
Vehicle Security Status | Learned Learn Pending No Immobilizer Not Learned | - | This parameter displays the status of the vehicle theft deterrent system. The normal parameter display for the theft deterrent system is Learned.
Vehicle Speed | - | km/h | This parameter displays the speed of the vehicle as calculated by the control module from information received from the vehicle speed sensor (VSS).
VIM Solenoid (Variable Intake Manifold) | Open Closed | - | This parameter displays the engine control modules commanded state of the VIM solenoid.
VIM Solenoid (Variable Intake Manifold) | - | V | This parameter displays the voltage of the engine control modules commanded state of the VIM solenoid.