Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Scan Data - Typical Data Values
The "Scan Data" listed in the table may be used for comparison, after completing the Diagnostic Circuit Check and finding the on-board diagnostics functioning properly and no trouble codes displayed. The "Typical Values" are an average of display values recorded from normally operating vehicles and are intended to represent what a normally functioning system would typically display.
| "Scan" Position | Units Displayed | Typical Data Values | ||
|---|---|---|---|---|
| Coolant Temp. | C° | 85°-105° | ||
| MAT Temp. | C° | 10°-60° (Depends on under- hood temperature) | ||
| TPS | Volts | .35-.67 | ||
| MAF | Grams/Second | 4-7 | ||
| INT (Integrator) | Counts | Varies | ||
| BLM (Block Learn) | Counts | 118-138 | ||
| IAC | Counts (steps) | 5 - 50 | ||
| RPM | RPM | 1000 ± 75 (Depends on temperature) | ||
| O2 | Volts | .1-1 and varies | ||
| Open/Closed Loop | Open/Closed | Closed Loop (May go open with extended idle) | ||
| Spark Advance | # of Degrees | Varies | ||
| Base Pulse Width (BPW) | M/Sec | .7-2.0 | ||
| EGR Duty Cycle | 0-100% | 0% (At idle) | ||
| EGR Vacuum Switch | ON-OFF | OFF | ||
| A/C Request | YES/NO | NO (YES, with A/C requested) | ||
| 4th Gear | YES/NO | NO (YES, when in 4th gear) | ||
| A/C Clutch | ON/OFF | OFF (ON, with A/C commanded on) | ||
| P/N Switch | P/N and RDL | Park/Neutral (P/N) | ||
| TCC | ON/OFF | OFF (ON, with TCC commanded on) | ||
| Power Steering Pressure Switch | Normal/High Pressure | Normal | ||
| VSS | MPH | 0 | ||
| Battery | Volts | 13.5-14.5 | ||
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NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.