Test NF-1A - No Fault Code Test Menu
Check TECHNICAL SERVICE BULLETINS (TSBs) for any pertinent information. If a TSB exists, perform corrective action. If TSB does not exist or if driveability problem still exists, check suspect system and perform indicated test. See NO FAULT CODE TEST SEQUENCE MENU table. If system causing driveability problem is not known, perform TEST NF-2A - CHECKING SECONDARY IGNITION & TIMING -TEST NF-13A - PERFORMING NO FAULT CODE MECHANICAL TEST in sequence until problem is found.
NO FAULT CODE TEST SEQUENCE MENU
| Application | Test |
|---|---|
| Checking Secondary Ignition & Timing | NF-2A |
| Checking Fuel Pressure | NF-3A |
| Checking Coolant & TPS Calibrations | NF-4A |
| Checking MAP Sensor Calibration | NF-5A |
| Checking Oxygen (O2) Sensor Switching | NF-6A |
| Checking Automatic Idle Speed Motor | NF-7A |
| Checking Park/Neutral Switch (A/T Only) | NF-8A |
| Checking SBEC Ground & Power Circuits | NF-9A |
| Checking EGR Valve Operation | NF-10A |
| Checking Engine Vacuum | NF-11A |
| Checking Minimum Idle Airflow | NF-12A |
| Checking Engine Mechanical | NF-13A |