"Scan" Data
Engine at idle/upper radiator hose hot/closed loop accessories off. See SCAN DATA CHART .
SCAN DATA CHART
| SCAN Position | Units Displayed | Typical Data Value |
|---|---|---|
| Desired RPM | RPM | ECM idle command (Varies with temp.) |
| RPM | RPM | +/- 150 RPM from desired RPM |
| Coolant Temp | C° | 85-105 degrees |
| MAP | Volts | 1.0 - 2.0 (depends on Vac. & Baro pressure) |
| BPW (Base Pulse Width) | m/Sec | 8-3.0 |
| O2 | Volts | 10-1.0 and varies |
| TPS | Volts | 4-1.25 |
| Throttle Angle | 0-100% | 0 |
| IAC | Counts (steps) | 1-30 |
| P/N Switch | P/N and RDL | Park/Neutral (P/N) |
| INT (Integrator) | Counts | 110-140 Normal |
| BLM (Block Learn) | Counts | 118-138 Normal |
| Open/Closed Loop | Open/Closed | Closed Loop (May go open with extended idle) |
| VSS | MPH | 0 |
| TCC | On/Off | Off/(On with TCC commanded) |
| Spark Advance | # of Degrees | Varies |
| Battery | Volts | 13.5-14.5 |
| Fan | On Off | Off (below 102°C) |
| Fan Request | Yes/No | No |
| A/C Request | Yes/No | No (yes with A/C requested) |
| A/C Clutch | On/Off | Off (on with A/C commanded on) |
| Shift Light (M/T) | On/Off | Off |