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 | |
A/C Pressure Out Of Range | Yes/No | No (Yes with low or high A/C refrigerant pressure) | |
A/C Request | Yes/No | No (Yes with A/C ON) | |
A/C Slugging | Active/Inactive | Inactive | |
Actual EGR Position | Percent | 0% | |
Air/Fuel Ratio | Ratio | 14.2:1-14.7:1 | |
BARO | kPa | 65-110 (Depends on altitude and barometric pressure). | |
Commanded A/C | On/Off | Off (On with A/C compressor engaged) | |
Commanded Fan 1/Commanded Fan 2 | On/Off | Off (On with low speed fans running) | |
Commanded Fan 1/Commanded Fan 2 | On/Off | Off (On with high speed fans running) | |
Commanded Gen | On/Off | On | Commanded Gen |
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 | |
Desired EGR Position | Percent | 0% | |
Desired Idle | RPM | PCM commanded idle speed (varies with temperature). | |
Desired Torque | Percent | 80%-95% |
Section 5E2 |
ECT | °C, °F | 85°C-105°C / 185°F-220°F (varies with temperature). | |
EGR Closed Valve Pintle Position | Volts | 0.14-1.0 volt | |
EGR Duty Cycle | Percent | 0% | |
EGR Feedback | Volts | 0.14-1.0 volt | |
EGR Position Error | Percent | 0%-9% | |
EGR Test Count | Counts | 0-10 | |
Engine Load | Percent | 2%-5% at idle 7%-10% at 2500 RPM | -- |
Engine Run Time | Hr: Min: Sec | Depends on time since startup. | -- |
Engine Speed | RPM | ±100 RPM from Desired Idle | Electronic Ignition (EI) System DTC P1374 Crankshaft Position (CKP) High to Low Resolution Frequency Correlation |
EVAP Purge PWM | Percent | 0%-25% (varies) | |
EVAP Vacuum Switch | Purge/No Purge | No Purge (Purge if over 25% EVAP Purge PWM is commanded). | |
Fuel Pump | On/Off | On | |
Fuel Trim Cell | Cell # | 0 | |
Fuel Trim Learn | Disabled/Enabled | Enabled | -- |
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 Time | Min: Sec | Depends on startup intake air temperature, startup engine coolant temperature, and time to HO2S activity. | |
HO2S XCount | Counts | Varies | HO2S Sen. 1 |
IAC Position | Counts | 10-40 | |
IAT | °C, °F | Varies with ambient air temperature. | |
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 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 | |
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 | |
Power Enrichment | Active/Inactive | Inactive | |
Rich/Lean | Rich/Lean | Constantly changing | |
Short Term Fuel Trim | Percent | -10%-10% | |
Spark | Degrees | -20° (varies) | |
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 | DTC P0123 Throttle Position (TP) Sensor Circuit High Voltage |
Total Misfire Current Count | Counts | 0-5 | |
TP Angle | Percent | 0% | DTC P0123 Throttle Position (TP) Sensor Circuit High Voltage |
TP Sensor | Volts | 0.20-0.74 | DTC P0123 Throttle Position (TP) Sensor Circuit High Voltage |
Transmission Range | Park/Reverse /Neutral/Drive 4/Drive 3/Drive 2/Low | Park | |
TR P A B C | X/0 | 0 0 X X | |
Trans Hot Mode | Active/Inactive | Inactive | 4T60-E Transaxle Diagnosis |
TWC Diagnostic | Enabled/Disabled | Enabled | |
TWC Monitor Test Counter | Counts | 0 | |
TWC Protection | Active/Inactive | Inactive | |
VTD Fuel Disable | Active/Inactive | Inactive |
