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, KS, EVAP, 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. |
| • | 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 | Units Displayed | Typical Data Value | Reference |
|---|---|---|---|
A/C Off For WOT | Yes / No | No | -- |
A/C Refrigerant Pressure | Volts | Varies with refrigerant temperature | DTC P0530 Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit |
A/C Pressure Out Of Range | Yes / No | No (Yes with low or high A/C refrigerant pressure) | Powertrain Control Module Controlled Air Conditioning (A/C) Circuit Diagnosis |
A/C Request | Yes / No | No (Yes with A/C ON) | Powertrain Control Module Controlled Air Conditioning (A/C) Circuit Diagnosis |
A/C Slugging | Active / Inactive | Inactive | Powertrain Control Module Controlled Air Conditioning (A/C) Circuit Diagnosis |
Actual EGR Position | Percent | 0% | DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance |
Air/Fuel Ratio | Ratio | 14.2:1 - 14.7:1 | |
BARO | kPa | 65 - 110 (Depends on altitude and barometric pressure). | DTC P0106 Manifold Absolute Pressure (MAP) System Performance |
Boost Sol. PWM | Percent | 100% | |
Commanded A/C | On / Off | Off (On with A/C compressor engaged) | Powertrain Control Module Controlled Air Conditioning (A/C) Circuit Diagnosis |
Commanded Fan 1/Commanded Fan 2 | On / Off | Off (On with low speed fans running) | |
Commanded Gen | On / Off | On | |
Commanded TCC | Engaged / Disengaged | Disengaged | 4T60-E Automatic Transaxle Diagnosis |
Cruise Engaged | Yes / No | No | |
Cruise Inhibited | Yes / No | Yes | |
Current Gear | 1 / 2 /3 / 4 | 1 | 4T60-E Automatic Transaxle Diagnosis |
Decel Fuel Mode | Active / Inactive | Inactive | |
Delivered Torque | Percent | 5% - 20% (Varies with load) | ABS/TCS |
Desired EGR Position | Percent | 0% | DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance |
Desired Idle | RPM | PCM commanded idle speed (varies with temperature). | |
Desired Torque | Percent | 80% - 95% | ABS/TCS |
ECT | °C, °F | 85°C - 105°C / 185°F - 220°F (varies with temperature). | DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage |
EGR Closed Valve Pintle Position | Volts | 0.14-1.0 volt | DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance |
EGR Duty Cycle | Percent | 0% | DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance |
EGR Feedback | Volts | 0.14 - 1.0 volt | DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance |
EGR Position Error | Percent | 0% - 9% | DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance |
EGR Test Count | Counts | 0 - 10 | DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance |
Engine Load | Percent | 2% - 5% at idle 7% - 10% at 2500 RPM | -- |
Engine Oil Level | Ok / Low | Ok | |
Engine Oil Life | Percent | 0%-100% (varies) | -- |
Engine Run Time | Hr: Min: Sec | Depends on time since startup. | -- |
Engine Speed | RPM | ±100 RPM from Desired Idle | -- |
EVAP Canister Purge / EVAP Purge PWM | Percent | 0% - 25% (varies) | |
EVAP Vacuum Switch | Purge / No Purge | No Purge (Purge if over 25% EVAP Purge PWM is commanded). | |
EVAP Vent Sol. | Open / Closed | Open | |
Fuel Level Sen. | Percent | 0%-100% (varies) | |
Fuel Pump | On / Off | On | |
Fuel Pump Speed | Normal / High | Normal | |
Fuel Tank Pressure | In. H2O | 0 | |
Fuel Trim Cell | Cell # | 0 | |
Fuel Trim Learn | Disabled / Enabled | Enabled | -- |
Gen PWM / Gen F Terminal | Percent | Varies | Charging System |
Generator Lamp | On / Off | Off | |
HO2S Sen. 1 | Not Ready / Ready | Ready | |
HO2S Sen. 1 | millivolts | 0 - 1000, constantly varying | |
HO2S Sen. 2 | mIllivolts | 0 - 1000,varies | |
HO2S Warm-Up Sensor 1 / HO2S Warm-Up Sensor 2 HO2S Warm Up Time | Min: Sec | Depends on startup intake air temperature, startup engine coolant temperature, and time to HO2S activity. | |
HO2S XCount | Counts | Varies | -- |
IAC Position | Counts | 10 - 40 | |
IAT | °C, °F | Varies with ambient air temperature. | DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage |
Idle Speed Error | RPM | Less than 100 | |
Ignition 1 | Volts | 13 (Varies) | |
Ignition Mode | IC / Bypass | IC | |
Injector Pulse Width | milliseconds | 1.5 - 3.5 (Varies with engine load) | -- |
Knock Retard | Degrees | 0° | |
KS Active Counter / KS Activity | Yes / No | No | |
KS Minimum Learned Noise | Volts | 0.1 - 3.0 (varies) | |
KS Noise Channel | Volts | 0.1 - 3.0 (varies) | |
Long Term Fuel Trim | Percent | -10% - 10% | |
Loop Status | Open / Closed | Closed | DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control |
Low Oil Lamp | On / Off | Off | |
MPH / km/h | MPH, Km/h | 0 | 4T60-E Automatic Transaxle Diagnosis |
MAF | gm/s | 3 - 6 gm/s at idle 13 - 16 gm/s at 2500 RPM (Depends on engine load and barometric pressure) | |
MAF Frequency | Hz | 1200 - 3000 (Depends on engine load and barometric pressure) | |
MAP | kPa / Volts | 29 - 48 kPa / 1 - 2 Volts (Depends on engine load and barometric pressure). | |
MIL | On / Off | Off | |
Misfire Cur. #1-#6 | Counts | 0 - 4 | |
Misfire Failures Since First Fail | Counts | 0 | |
Misfire Hist. #1-#6 | Counts | 0 | |
Misfire Passes Since First Fail | Counts | 0 | |
Oil Level | Ok / Low | Ok | |
Oil Life Switch | Pressed/Released | Released | |
Park/Neutral Position | P-N / R-DL | P-N | |
Power Enrichment | Active / Inactive | Inactive | |
Rich/Lean | Rich / Lean | Constantly changing | |
Shift Mode Sw. | Normal / Performance | Normal | 4T60-E Automatic Transaxle Diagnosis |
Short Term Fuel Trim | Percent | -10% - 10% | |
Spark | Degrees | -20° (varies) | Modes of Operation - General Description |
Start Up ECT | °C, °F | Depends on engine coolant temperature at time of startup | |
Start Up IAT | °C, °F | Depends on intake air temperature at time of startup | |
TCC Enable | On / Off | Off | 4T60-E Transaxle Diagnosis |
Throttle at Idle | Yes / No | Yes | -- |
Total Misfire Current Count | Counts | 0 - 5 | |
Total Misfire Failures Since First Fail - refer to Misfire Failures Since First Fail | Counts | 0 | |
Total Misfire Passes Since First Fail - refer to Misfire Passes Since First Fail | Counts | 0 | |
TP Angle | Percent | 0% | |
TP Sensor | Volts | 0.20 - 0.74 | |
Traction Control | Active / Inactive | Inactive | ABS/TCS |
Transmission Range | Park / Reverse / Neutral / Drive 4 / Drive 3 / Drive 2 / Low | Park | |
TR P A B C | X / 0 | 0 0 X X | |
Traction Control Desired Torque | Percent | 80% - 95% | ABS/TCS |
Traction Control Torque | Percent | 5% - 20% (Varies with load) | ABS/TCS |
Trans Hot Mode | Active / Inactive On/Off | Inactive Off | 4T60-E Transaxle Diagnosis |
TWC Diagnostic | Enabled / Disabled | Enabled | |
TWC Monitor Test Counter | Counts | 0 | |
TWC Protection | Active / Inactive | Inactive | |
Vehicle Speed | MPH, Km/h | 0 | 4T60-E Automatic Transaxle Diagnosis |
VTD Fuel Disable | Active / Inactive | Inactive |
