Test NF-1A - No Fault Code Test Menu
Check TECHNICAL SERVICE BULLETINS (TSBs) for any pertinent information relating to driveability problems. 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 unknown, perform TEST NF-2A through TEST NF-13A 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 Sensor Switching | NF-6A |
| Checking Automatic Idle Speed Motor | NF-7A |
| Checking Park/Neutral Safety Switch | NF-8A |
| Checking Engine Controller Grounds | NF-9A |
| Checking EGR Valve Operation | NF-10A |
| Checking Engine Vacuum | NF-11A |
| Checking Minimum Idle Airflow | NF-12A |
| Checking Engine Mechanical | NF-13A |