Use the Typical Scan Data Values table only after the Powertrain On-Board Diagnostic System Check has been completed, no DTCs 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.
Important: Use the Typical Scan Data Values only after the following conditions are met:
| • | The Powertrain On-Board Diagnostic System Check has been completed. |
| • | The engine is idling. |
| • | The engine is at operating temperature. |
| • | The throttle is closed. |
| • | The vehicle is in PARK or NEUTRAL. |
| • | The vehicle is operating in Closed Loop. |
| • | The vehicle accessories are turned OFF. |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
A/C High Side Pressure | Engine 2 | Volts | Varies with refrigerant temperature |
A/C Pressure Out of Range | Engine 2 | Yes / No | No (Yes with low or high A/C refrigerant pressure) |
A/C Relay | Output Driver | Fault / OK | OK |
A/C Request | Engine 2 | Yes / No | No (Yes with A/C requested |
Actual EGR Position | Engine 1 Engine 2 EGR Misfire | Percent | 0% |
Air/Fuel Ratio | Engine 1 Catalyst HO2S A.I.R | Ratio | 14.2:1-14.7:1 |
A.I.R Active Test AIR Injection | A.I.R | Yes / No | Yes |
A.I.R Active Test Inhibit | A.I.R | Yes / No | No |
A.I.R Active Test Passed | A.I.R | Yes / No | Yes |
A.I.R Passive Test Inhibit | A.I.R | Yes / No | Yes |
A.I.R Passive Test in Progress | A.I.R | Yes / No | Yes |
A.I.R Passive Test 1 Passed | A.I.R | Yes / No | Yes |
A.I.R Passive Test 2 Fail | A.I.R | Yes / No | No |
A.I.R Passive Test Passed | A.I.R | Yes / No | Yes |
A.I.R Pump Relay | Engine 1 A.I.R | On / Off | Off |
A.I.R Pump Relay | Output Driver A.I.R | Fault / OK | OK |
A.I.R Solenoid | Engine 1 A.I.R | On / Off | Off |
A.I.R Solenoid | Output Driver A.I.R | Fault / OK | OK |
BARO | Engine 1 Engine 2 Catalyst EVAP EGR | kPa / Volts | 65 - 110 kPa (Depends on altitude and barometric pressure) |
Boost Solenoid | Engine 2 | Percent | 100% |
Brake Switch | Engine 1 | Engaged / Released | Released (Engaged with pedal depressed) |
Cam Signal Present | Misfire | Yes / No | Yes |
Change Oil Lamp | Engine 2 | % | Displays remaining oil life |
Change Oil Lamp | Output Driver | Fault / OK | OK |
Commanded A/C | Engine 2 Catalyst Misfire | On / Off | Off (On with A/C compressor engaged) |
Commanded GEN | Engine 1 | On / Off | On |
Commanded Starter | Engine 2 | Disabled / Enabled | Disabled |
Cruise | Engine 1 | Engaged / Disengaged | Disengaged |
Cruise Inhibit | Engine 1 | Yes / No | Yes |
Cruise Inhibit | Output Driver | Fault / OK | OK |
Cruise Inhibited Reason | Engine 1 | Reason | Vehicle Speed |
Current Gear | Engine 1 | 1 / 2 / 3 / 4 | 1 |
Cylinder # Injector CKT H / S | Output Driver | Fault / OK | OK |
Decel Fuel Mode | Engine 1 Engine 2 Catalyst HO2S Misfire | Active / Inactive | Inactive |
Desired EGR Position | Engine 1 Engine 2 EGR Misfire | Percent | 0% |
Desired Idle Speed | Engine 1 Engine 2 EGR | RPM | PCM commanded idle speed (varies with temperature) |
Driver Module 1 Status | Output Driver | Disabled / Enabled | Enabled |
Driver Module 2 Status | Output Driver | Disabled / Enabled | Enabled |
Driver Module 3 Status | Output Driver | Disabled / Enabled | Enabled |
Driver Module 4 Status | Output Driver | Disabled / Enabled | Enabled |
ECT | Engine 1 Engine 2 EGR EVAP Catalyst HO2S Misfire A.I.R | °C, °F | 85°C-105°C / 185°F-220°F (varies with temperature) |
EGR Closed Valve Pintle Position | EGR | Volts | 0.14-1.0 Volts |
EGR Duty Cycle | EGR | Percent | 0% |
EGR Feedback | EGR | Volts | 0.14-1.0 Volts |
EGR Flow Test Count | EGR | Counts | 0-10 |
EGR Position Error | EGR | Percent | 0%-9% |
Engine Hot Lamp | Engine 2 | On / Off | Off |
Engine Load | Engine 1 Engine 2 Catalyst Misfire A.I.R | Percent | Varies with Load |
Engine Oil Level | Engine 2 | OK / Low | OK |
Engine Oil Life | Engine 2 | Percent | 0%-100% (varies) |
Engine Oil Pressure | Engine 2 | OK / Low | OK |
Engine Run Time | Engine 1 Engine 2 Catalyst EVAP A.I.R | Hr: Min: Sec | Depends on time since startup |
Engine Speed | Engine 1 Engine 2 EGR EVAP HO2S Misfire | RPM | ± 100 RPM from Desired Idle Speed |
EVAP Canister Purge | EVAP HO2S A.I.R | Percent | 0% - 25% (varies) |
EVAP Fault History | EVAP | No Fault No Test Result Excess Vacuum Purge Valve Leak Small Leak Weak Vacuum | No Fault |
EVAP Purge Solenoid | Output Driver | Fault / OK | OK |
EVAP Vent Solenoid | EVAP | Open / Closed | Open |
EVAP Vent Solenoid | Output Driver | Fault / OK | OK |
Fan High Speed | Engine 2 Catalyst | On / Off | Off (On with fan running) |
Fan Low Speed | Engine 2 Catalyst | On / Off | Off (On with fan running) |
FC Relay 1 | Output Driver | Fault / OK | OK |
FC Relay 2 and 3 | Output Driver | Fault / OK | OK |
Fuel Level | EVAP | Percent | 0%-100% (varies) |
Fuel Pump | Engine 2 | On / Off | On |
Fuel Pump Speed | Engine 2 | Normal / High | Normal |
Fuel Pump CKT Status | Output Driver | Fault / OK | OK |
Fuel Pump CKT Hist. | Output Driver | Fault / OK | OK |
Fuel Pump Speed (VIN 1) | Engine 2 | Normal / High | Normal |
Fuel Tank Pressure | EVAP | mmHg / Volts | -0.33 / -0.53 mmHg 1.46 / 1.49 Volts |
Fuel Trim Cell | Engine 1 Misfire A.I.R | Cell # | 0 |
Fuel Trim Learn | Engine 1 Catalyst | Disabled / Enabled | Enabled |
Generator Lamp | Engine 2 | On / Off | Off |
Generator PWM | Engine 2 | Percent | Varies |
HO2S Sensor 1 | Engine 1 HO2S | Not Ready / Ready | Ready |
HO2S Sensor 1 | Engine 1 Catalyst HO2S A.I.R | Millivolts | 0-1000 constantly varying |
HO2S Sensor 2 | Engine 1 Catalyst HO2S | Millivolts | 0-1000 constantly varying |
HO2S XCounts | HO2S | Counts | Varies |
IAC Position | Engine 1 Engine 2 Catalyst EGR Misfire | Counts | 10-40 |
IAT | Engine 1 Engine 2 Catalyst EVAP HO2S A.I.R | °C, °F | Varies with ambient air temperature |
Ignition 1 | Engine 1 Engine 2 EGR HO2S A.I.R | Volts | 13 (varies) |
Ignition Mode | Engine 2 | IC / Bypass | IC |
Injector Pulse Width | Engine 1 Catalyst | Milliseconds | 1.5-3.5 (varies with engine load |
Knock Retard | Engine 2 | Degrees | 0 degrees |
Long Term FT | Engine 1 Misfire A.I.R | Percent | -10%-10% |
Loop Status | Engine 1 Catalyst HO2S Misfire A.I.R | Open / Closed | Closed |
Low Oil Lamp | Engine 2 | On / Off | Off |
MAF | Engine 1 Engine 2 Catalyst HO2S A.I.R | g/s | Varies (Depends on engine load and barometric pressure) |
MAF Frequency | Engine 1 | Hz | 1200-3000 (Depends on engine load and barometric pressure) |
MAP | Engine 1 Engine 2 EVAP EGR | kPa / Volts | 29-48 kpa / 1-2 volts (Depends on engine load and barometric pressure) |
MIL | Engine 2 | On / Off | Off |
MIL | Output Driver | Fault / OK | OK |
Misfire Current Cylinder # | Misfire | Counts | 0-4 |
Misfire History Cylinder # | Misfire | Counts | 0 |
Misfiring Cylinder (Primary / Secondary) | Misfire | 0-6 | 0 |
Power Enrichment | Engine 1 Engine 2 Catalyst HO2S Misfire | Active / Inactive | Inactive |
Rich/Lean Status | Engine 1 | Rich / Lean | Constantly changing |
Short Term FT | Engine 1 Catalyst Misfire A.I.R | Percent | -10%-10% |
Spark | Engine 2 | Degrees | 20° (Varies) |
Start Up ECT | EVAP HO2S A.I.R | °C, °F | Depends on engine coolant temperature at time of startup |
Start Up IAT | EVAP HO2S A.I.R | °C, °F | Depends on engine ambient temperature at time of startup |
TCC Solenoid | Output Driver | Fault / OK | OK |
Throttle at Idle | Engine 1 | Yes / No | Yes |
Total Misfire Current Count | Misfire | Counts | 0-5 |
Total Misfire Failures Since First Fail | Misfire | Counts | 0 |
Total Misfire Passes Since First Fail | Misfire | Counts | 0 |
TP Angle | Engine 1 Engine 2 Catalyst EGR EVAP HO2S Misfire A.I.R | Percent | 0% |
TP Sensor | Engine 1 | Volts | 0.20-0.74 |
Traction Control | Engine 2 | Active / Inactive | Inactive |
Traction Control Desired | Engine 2 | Percent | 100% |
Traction Control Torque | Engine 2 | Percent | 70%-80% (Varies with load) |
Transmission Range | Engine 2 | Park / Reverse / Neutral / Drive 4 / Driver 3 / Driver 2 / Low | Park |
TR Switch P / A / B / C | Engine 2 | High / Low | Low / Low / High / High |
TWC Protection | Engine 1 Engine 2 Catalyst HO2S Misfire | Active / Inactive | Inactive |
Vehicle Speed | Engine 1 Engine 2 EGR EVAP Catalyst Misfire | mph / km/h | 0 |
VTD Fuel Disable | Engine 2 | Active / Inactive | Inactive |
1 - 2 Solenoid | Output Driver | Fault / OK | OK |
2 - 3 Solenoid | Output Driver | Fault / OK | OK |
3X Crank Sensor | Misfire | RPM | Varies with Engine Speed |
18X Crank Sensor | Misfire | RPM | Varies with Engine Speed |
