No Trouble Code Complete Test
Check Technical Service Bulletins (TSBs) for any pertinent information. If a TSB exists, perform corrective procedure as instructed. If no TSB exists or if problem still exists, perform test NTC-3A through NTC-27A in sequence until problem is found. See NO TROUBLE CODE TEST MENU table.
NO TROUBLE CODE TEST MENU
| Application | Test |
|---|---|
| Checking PCM Power & Ground Circuits | NTC-3A |
| Checking Engine Vacuum | NTC-4A |
| Checking Fuel Delivery | NTC-5A |
| Checking Coolant Sensor Calibration | NTC-6A |
| Checking Throttle Position Sensor Calibration | NTC-7A |
| Checking MAP Sensor Calibration | NTC-8A |
| Checking Minimum Idle Airflow | NTC-9A |
| Checking Oxygen Sensor Switching | NTC-10A |
| Checking Oxygen Sensor Heater | NTC-11A |
| Checking Idle Air Control Motor | NTC-12A |
| Checking Engine Mechanical Systems | NTC-13A |
| Checking Evaporative Emission System | NTC-17A |
| Checking EGR System | NTC-18A |
| Checking Intake Air Temperature Sensor | NTC-19A |
| Checking Park/Neutral Position Switch | NTC-20A |
| Checking Oil Pressure Switch | NTC-21A |
| Checking A/C System | NTC-26A |
| Checking Radiator Fan Operation | NTC-27A |