Use the Typical Scan Data Values table only after the Powertrain On-Board Diagnostic System Check has been completed, no DTC(s) were noted and you have determined the on-board diagnostics are functioning properly. Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The Typical Scan Data values represent values that would be seen on a normally running engine.
Important:: A scan tool that displays faulty data should not be used, and the problem should be reported to the scan tool manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.
Only the parameters listed below are referred to in this service manual for use in diagnosis. For further information on using the scan tool to diagnose the PCM and related sensors, refer to the applicable reference section listed below. If all values are within the typical range described below, refer to Symptoms section for diagnosis. The Typical Scan Data Values table contains all the parameters included in the following data lists arranged in alphabetical order:
Engine Data
| • | ENG 1- Contains general information regarding fuel delivery and basic engine operating conditions. |
| • | ENG 2 - Contains general information regarding IC, A/C, and basic engine operating conditions. |
Specific Engine Data
| • | EGR - Contains information specific to the Exhaust Gas Recirculation system flow diagnostics and the EGR valve pintle position sensor diagnostics. Also displays parameters required to verify proper EGR system operation. |
| • | EVAP - Contains information specific to the EVAP system diagnostics. Also displays parameters required to verify proper EVAP system operation. |
| • | CATALYST - Contains information specific to the TWC diagnostics and parameters required to verify proper TWC system operation. |
| • | HO2S - Contains information specific to the Heated Oxygen Sensor diagnostics and parameters required to verify proper HO2S operation. |
| • | MISFIRE - Contains information specific to the misfire diagnostics and parameters required to verify proper operation with regard to misfire. |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value | Reference |
|---|---|---|---|---|
A/C High Side Pressure | Engine 2 | Volts | Varies with refrigerant temperature | DTC P0530 A/C Refrigerant Pressure Sensor Circuit |
A/C Press. Out Of Range | Engine 2 | Yes / No | No (Yes with low or high A/C refrigerant pressure) | PCM Controlled Air Conditioning Diagnosis |
A/C Request | Engine 2 | Yes / No | No (Yes with A/C ON) | PCM Controlled Air Conditioning Diagnosis |
Actual EGR Position | Engine 1 EGR Misfire | Percent | 0% | DTC P1404 EGR Valve Stuck Open |
Air/Fuel Ratio | Engine 1 HO2S | Ratio | 14.2:1 - 14.7:1 | DTC P0171 Fuel Trim System Lean |
BARO | Engine 1 Engine 2 EGR EVAP | kPa / Volts | 65 - 110 kPa (Depends on altitude and barometric pressure). | DTC P0107 MAP Sensor Circuit Low Voltage |
Boost Solenoid PWM | Engine 2 | Percent | 100% | Boost Control System Check |
Cam Signal Present | Misfire | Yes/No | Yes | DTC P0341 CMP Sensor Circuit Performance |
Change Oil Lamp | Engine 2 | On / Off | Off | Information Sensors / Switches |
Commanded A/C | Engine 2 | On / Off | Off (On with A/C compressor engaged) | PCM Controlled Air Conditioning Diagnosis |
Commanded Fan 1/Commanded Fan 2 | Engine 2 | On / Off | Off (On with fans running) | Electric Cooling Fan Diagnosis |
Commanded Gen | Engine 1 | On / Off | On | DTC P0560 System Voltage |
Cruise | Engine 1 | Engaged / Disengaged | No | DTC P1554 Cruise Control Status Circuit |
Cruise Inhibited | Engine 1 | Yes / No | Yes | DTC P1554 Cruise Control Status Circuit |
Current Gear | Engine 1 | 1 / 2 /3 / 4 | 1 | 4T65-E Automatic Transaxle Diagnosis |
Decel Fuel Mode | Engine 1 Engine 2 Catalyst HO2S Misfire | Active / Inactive | Inactive | Fuel Metering Modes of Operation |
Desired EGR Position | Engine 1 EGR Misfire | Percent | 0% | DTC P1404 EGR Valve Stuck Open |
Desired Idle Speed | Engine 1 Engine 2 | RPM | PCM commanded idle speed (varies with temperature). | Idle Air Control System Check |
ECT | Engine 1 Engine 2 EGR EVAP Catalyst HO2S Misfire | °C, °F | 85°C - 105°C / 185°F - 220°F (varies with temperature). | DTC P0117 ECT Sensor Circuit Low Voltage |
EGR Closed Val.Pintle Pos | EGR | Volts | 0.14-1.0 volt | DTC P1404 EGR Valve Stuck Open |
EGR Duty Cycle | EGR | Percent | 0% | EGR System Description |
EGR Feedback | EGR | Volts | 0.14 - 1.0 volt | EGR System Description |
EGR Flow Test Count | EGR | Counts | 0 - 10 | EGR System Description |
EGR Position Error | EGR | Percent | 0% - 9% | EGR System Description |
Engine Load | Engine 1 Engine 2 Catalyst Misfire | Percent | 2% - 5% at idle 7% - 10% at 2500 RPM | -- |
Engine Oil Level | Engine 2 | Ok / Low | Ok | Engine Oil Level Switch Diagnosis |
Engine Oil Life | Engine 2 | Percent | 0%-100%(varies) | |
Engine Run Time | Engine 1 Engine 2 EVAP Catalyst | Hr: Min: Sec | Depends on time since startup. | -- |
Engine Speed | Engine 1 Engine 2 EVAP | RPM | ±100 RPM from Desired Idle | -- |
EVAP Canister Purge | EVAP HO2S | Percent | 0% - 25% (varies) | EVAP Control System |
EVAP Fault History | EVAP | Fault / No Fault | No Fault | -- |
EVAP Vent Solenoid | EVAP | Open / Closed | Open | EVAP Control System |
Fuel Level | EVAP | Percent | varies with the amount of fuel | -- |
Fuel Pump | Engine 2 | On / Off | On | Fuel Supply Components |
Fuel Pump Speed | Engine 2 | Normal / High | Normal | Fuel Supply Components |
Fuel Tank Pressure | EVAP | in H20 / Volts | 0 in H20 / 1.5 volts | DTC P0452 Fuel Tank Pressure Sensor Low Voltage DTC P0453 Fuel Tank Pressure Sensor High Voltage |
Fuel Trim Cell | Engine 1 | Cell # | 0 | DTC P0171 Fuel Trim System Lean |
Fuel Trim Learn | Engine 1 | Disabled / Enabled | Enabled | -- |
Generator PWM | Engine 2 | Percent | Varies | Charging System |
HO2S Sen. 1 | Engine 1 HO2S | Not Ready / Ready | Ready | DTC P0135 HO2S Heater Circuit Sensor1 |
HO2S Sen. 1 | Engine 1 HO2S Catalyst | millivolts | 0 - 1000, constantly varying | Information Sensors |
HO2S Sen. 2 | Engine 1 HO2S Catalyst | mIllivolts | 0 - 1000,varies | Information Sensors |
HO2S Warm Up Sensor 1 / HO2S Warm Up Sensor 2 | HO2S | Min: Sec | Depends on startup intake air temperature, startup engine coolant temperature, and time to HO2S activity. | DTC P0135 HO2S Heater Circuit Sensor1 |
HO2S XCounts | HO2S | Counts | Varies | -- |
IAC Position | Engine 1 Engine 2 EGR Catalyst Misfire | Counts | 10 - 40 | Idle Air Control System Check |
IAT | Engine 1 Engine 2 EVAP Catalyst HO2S | °C, °F | Varies with ambient air temperature. | DTC P0112 IAT Sensor Circuit Low Voltage |
Ignition 1 | Engine 1 Engine 2 EGR HO2S | Volts | 13 (Varies) | DTC P0560 System Voltage |
Ignition Mode | Engine 2 | IC / Bypass | IC | Electronic Ignition System |
Injector Pulse Width | Engine 1 | milliseconds | 1.5 - 3.5 (Varies with engine load) | -- |
Knock Retard | Engine 2 | Degrees | 0° | Knock Sensor System |
Long Term Fuel Trim | Engine 1 Misfire | Percent | -10% - 10% | DTC P0171 Fuel Trim System Lean |
Loop Status | Engine 1 Catalyst HO2S Misfire | Open / Closed | Closed | DTC P0125 ECT Excessive Time to Closed Loop |
Low Oil Lamp | Engine 2 | On / Off | Off | PCM Controlled Warning Lamps Diagnosis |
MAF | Engine 1 Engine 2 Catalyst HO2S | gm/s | 3 - 6 gm/s at idle 13 - 16 gm/s at 2500 RPM (Depends on engine load and barometric pressure) | Information Sensors |
MAF Frequency | Engine 1 | Hz | 1200 - 3000 (Depends on engine load and barometric pressure) | DTC P0102 MAF Sensor Circuit Low Frequency |
MAP | Engine 1 Engine 2 EGR EVAP | kPa / Volts | 29 - 48 kPa / 1 - 2 Volts (Depends on engine load and barometric pressure). | DTC P0108 MAP Sensor Circuit High Voltage |
MIL | Engine 2 | On / Off | Off | No Malfunction Indicator Lamp |
Misfire Current Cylinder # | Misfire | Counts | 0 - 4 | DTC P0300 Engine Misfire Detected |
Misfire History Cylinder # | Misfire | Counts | 0 | DTC P0300 Engine Misfire Detected |
Misfiring Cylinder | Misfire | 0 - 6 | 0 | DTC P0300 Engine Misfire Detected |
Oil Life Reset | Engine 2 | Released / Pressed | Released | -- |
Power Enrichment | Engine 1 Engine 2 Catalyst HO2S Misfire | Active / Inactive | Inactive | Fuel Metering Modes of Operation |
Rich/Lean Status | Engine 1 | Rich / Lean | Constantly changing | Fuel Metering Modes of Operation |
Short Term Fuel Trim | Engine 1 Misfire | Percent | -10% - 10% | DTC P0171 Fuel Trim System Lean |
Spark | Engine 2 | Degrees | -20° (varies) | Electronic Ignition System |
Start Up ECT | EVAP HO2S | °C, °F | Depends on engine coolant temperature at time of startup | DTC P0135 HO2S Heater Circuit Sensor1 |
Start Up IAT | EVAP HO2S | °C, °F | Depends on intake air temperature at time of startup | DTC P0135 HO2S Heater Circuit Sensor1 |
Throttle at Idle | Engine 1 | Yes / No | Yes | -- |
Total Misfire Current Count | Misfire | Counts | 0 - 5 | DTC P0300 Engine Misfire Detected |
Total Misfire Failures Since First Fail | Misfire | Counts | 0 | DTC P0300 Engine Misfire Detected |
Total Misfire Passes Since First Fail | Misfire | Counts | 0 | DTC P0300 Engine Misfire Detected |
TP Angle | Engine 1 Engine 2 EGR Catalyst HO2S Misfire | Percent | 0% | DTC P0121 TP Sensor Performance |
TP Sensor | Engine 1 | Volts | 0.20 - 0.74 | DTC P0122 TP Sensor Circuit Low Voltage |
Traction Control | Engine 2 | Active / Inactive | Inactive | ABS/TCS |
Traction Control Desired Torque | Engine 2 | Percent | 80% - 95% | ABS/TCS |
Traction Control Torque | Engine 2 | Percent | 5% - 20% (Varies with load) | ABS/TCS |
Transmission Range | Engine 2 | Park / Reverse / Neutral / Drive 4 / Drive 3 / Drive 2 / Low | Park | DTC P0706 Transaxle Range Switch Performance |
TR Switch P / A / B / C | Engine 2 | High / Low | Low / Low / High / High | DTC P0705 Trans Range Switch Circuit |
TWC Protection | Engine 1 Engine 2 Catalyst HO2S Misfire | Active / Inactive | Inactive | Fuel Metering Modes of Operation |
Vehicle Speed | Engine 1 Engine 2 EGR Catalyst Misfire | MPH, Km/h | 0 | 4T65-E Automatic Transaxle Diagnosis |
VTD Fuel Disable | Engine 2 | Active / Inactive | Inactive | DTC P1629 Theft Deterrent Crank Signal Malfunction |
3X Crank Sensor | Misfire | Engine RPM | varies with engine RPM | Information Sensors / Switches |
18X Crank Sensor | Misfire | Engine RPM | varies with engine RPM | Information Sensors / Switches |
