Use the scan tool data listed in this table for comparison after the Powertrain OBD System Check and finding the On-Board Diagnostics function properly with no diagnostic codes displayed.
The typical scan tool data values are an average of display values recorded from normally operating vehicles. The typical scan tool data values are intended to represent what a normally functioning system would display. The values you get may vary due to a low battery charge or other reasons, but they should be close.
Do not use a scan tool that displays erroneous data. Report the problem to the manufacturer. The use of a malfunctioning scan tool can result in misdiagnosis and unnecessary parts replacement.
Use only the parameters listed in the tables for diagnosis. If all values are within the range illustrated, refer to driveability symptoms.
Scan Tool Parameter | Units Displayed | Typical Data Value | Reference |
|---|---|---|---|
A/C High Side Pressure | Volts | 0-5.0 Volts | PCM Controlled Air Conditioning Diagnosis |
A/C High Side Pressure | psi/kPa | 0-450 psi (0-3103 kPa) (varies with the refrigerant pressure) | PCM Controlled Air Conditioning Diagnosis |
A/C Relay | Off/On | Off (On with the A/C requested) | PCM Controlled Air Conditioning Diagnosis |
A/C Request | Yes/No | No (Yes with A/C ON) | PCM Controlled Air Conditioning Diagnosis |
Adaptive Knock Retard | Degrees | 0 | Information Sensors Description |
Air/Fuel Ratio | Ratio | 14.6:1 (varies) | Fuel Metering Modes of Operation |
BARO | kPa | 65-104 (varies with the altitude and barometric pressure). | Information Sensors Description |
Base PWM Cyl. 1-4 | mS | 1-4 varies | DTC P0200 Misfire Diagnosis |
Calc. Air Flow | g/s | Varies | Freeze Frame and O2S Information |
Catalyst Converter TT | °C-°F | Varies with the engine Load | DTC P0420 TWC System Diagnosis |
CKP Active Counter (7X Reference) | 0-255 Counts | 0-255 Increments while cranking or running | Information Sensors Description DTC P0335 CKP Sensor Circuit Performance |
CMP Active Counter | 0-255 Counts | 0-255 Increments while cranking or running | DTC P0341 and P0342 CMP Circuit Diagnosis |
CMP Resync Counter | 0-255 Counts | 0 | DTC P0341 and P0342 CMP Circuit Diagnosis |
Cruise | Enabled/Disable | Disable | PCM Outputs Diagnosis |
Cruise | Engaged/Disengaged | Disengaged | PCM Outputs Diagnosis |
Desired Idle Speed | RPM | PCM commanded idle speed (varies with calibration). | Idle Air Control System Check |
ECT | °C-°F | 85°C-115°C/185°F-239°F (varies with coolant temperature). | Information Sensors Description |
Engine Load | % | 11%-21% 16-29% at 2,500 RPM | Engine Load |
Engine Run Time | Hr:Min:Sec | Depends on time since startup. | Engine Run Time |
Engine Speed | RPM | ±100 RPM from Desired Idle | Information Sensors Description Idle Air Control System Check |
EVAP Canister Purge | % | 0%-100% (varies) | EVAP Control System Description |
EVAP Vent Solenoid | Open/Closed | Open | EVAP Control System Description |
Fuel Tank Pressure | mmHg/H2O | Depends on Pressure/ Vacuum | DTC P0452, P0453, P0440, P0442, P0446, and P1441 Diagnosis |
Fuel Tank Pressure | Volts | Depends on Pressure/ Vacuum | DTC P0452, P0453, P0440, P0442, P0446, and P1441 Diagnosis |
Fuel Level | % | 0-100% Depends on fuel level | DTC P0461, P0462, and P0463 Fuel Level System Diagnosis |
Fuel Trim Cell | Cell number | 18-21 at idle (varies with the air flow, RPM P/N and A/C | DTC P0171 and P0172 Fuel Trim System Rich |
Fuel Trim Index | % | 58-198 (varies -100% to 100%) | DTC P0171 and P0172 Fuel Trim System Rich |
Generator L Terminal | Active/Inactive | Inactive | Engine Electrical |
HO2S 2 | mV | 0-1000, constantly varying | Information Sensors Description |
IAC Position | Counts | 5-60 | Idle Air Control System Check |
IAT | °C-°F | 10°-80°C (50°-176°F varies with under hood temperature) | Information Sensors Description |
Ignition 1 | Volts | 12.0-15.0 Volts (Varies) | DTC P0562 and P0563 System Voltage |
KS Active Counter | Counts | 0-2 | Knock Sensor System Description |
KS Noise Channel | Volts | Increments when knock is present | Knock Sensor System Description |
Knock Retard | Degrees | 0° | Knock Sensor System Description |
Lean/Rich Transition | 0-255 Counts | 0 | DTC P0133 and P1133 Diagnosis |
Lean/Rich Average Time | mS | 0 | DTC P0133 and P1133 Diagnosis |
Long Term FT | % | 58-198 (-100% to 100% varies) | DTC P0171 and P0172 Fuel Trim System Lean |
Loop Status | Open/Closed | Closed | DTC P0125 ECT Excessive Time to Closed Loop |
MAP | kPa | 25-48 kPa | Information Sensors Description |
MAP | Volts | 1-3 volts (varies with the vacuum and BARO pressure) | DTC P0105, P0107, and P0108 Diagnosis |
Total Misfire Current Counter | 0-255 Counts | 0 (increase with a misfire) | DTC P0300-P0304 |
Misfire Current #1-#4 | 0-255 Counts | 0 (increase with a misfire) | DTC P0300-P0304 |
Misfire History #1-#4 | 0-255 Counts | 0 (increase with a misfire) | DTC P0300-P0304 |
Med. Resolution Resync | 0-255 Counts | 0 | DTC P0335 Diagnosis |
Med. Resolution Engine | Yes/No | Yes | DTC P0335 Diagnosis |
Mileage Since First Failure | km | Varies | Freeze Frame Information |
Mileage Since Last Failure | km | Varies | Freeze Frame Information |
Number of Current DTCs | Number | 0 | Freeze Frame Information |
Number of catalyst Mon. Test Completed | Number of samples | Varies | DTC P0420 TWC System Diagnosis |
O2S 1 | mV | 1-1000 and varying | Information Sensors |
Output Driver 1 Open | 00000000 | 00000000 (A 1 appears with a short to ground or open) | PCM Outputs Diagnosis |
Output Driver 1 Short | 00000000 | 00000000 (A 1 appears with a short to voltage) | PCM Outputs Diagnosis |
Output Driver 2 Open | 00000000 | 00000000 (A 1 appears with a short to ground or open) | PCM Outputs Diagnosis |
Output Driver 2 Short | 00000000 | 00000000 (A 1 appears with a short to voltage) | PCM Outputs Diagnosis |
Power Enrichment | Active / Inactive | Inactive | Fuel Metering Modes of Operation |
Purge Learned Memory | Counts | 1.00 | DTC P0440, P0442, P0446 and P1441 Diagnosis |
Rich / Lean Transition | 0-255 Counts | 0 | DTC P0133 and P1133 Diagnosis |
Rich / Lean Average Time | mS | 0 | DTC P0133 and P1133 Diagnosis |
Rich / Lean to Lean / Rich | Ratio | Varies | DTC P0133 and P1133 Diagnosis |
Short Term FT | % | 58-198 (-100% to 100% varies) | DTC P0171 Fuel Trim System Lean |
Spark | Degrees | Varies | Information Sensors Description |
Theft System Learn Mode | Enabled / Disabled | Enabled | Password Learn Procedure |
TP Angle | % | 0% (up to 100% at wide open throttle) | DTC P0105, P0122, and P0123 TP Sensor Circuit High Voltage |
TP Sensor | Volts | 0.200--0.900 volts (up to 5.0 volts at wide open throttle) | DTC P0105, P0122 and P0123 TP Sensor Circuit High Voltage Information Sensors Description |
Transmission Range | Invalid / Low / Drive 2/Drive 3/Overdrive/ Reverse / Park / Neutral | Park / Neutral (Auto trans only) | Information Sensors Description |
TR Switch P A B C | Low / High | Low / Low / High / High | Information Sensors Description |
Vehicle Speed | Km/h / MPH | 0 | Automatic Transaxle Diagnosis |
