Test NTC-1: No Trouble Code Test Menu
- No Trouble Code (NTC) tests may be performed if a driveability problem or charging system problem exists. Select symptom which most accurately describes the driveability problem and determine what NTC test should be performed pertaining to the symptom and the order that NTC tests should be performed. See NO TROUBLE CODE SYMPTOM table.
- Perform appropriate NTC test. See NO TROUBLE CODE TEST MENU
table.NO TROUBLE CODE SYMPTOM
Application Perform NTC Tests In This Order Hard Start 14, 5, 15, 2, 17, 10, 16, 8, 4, 6, 3 & 9 Start & Stalls 14, 13, 15, 2, 10, 16 & 8 Hesitation/Sag/Stumble 14, 13, 5, 15, 2, 17, 10, 16, 7, 11, 8, 4, 6, 3, 9 & 12 Surge 14, 13, 15, 2, 17, 10, 16, 7, 8 & 6 Lack Of Power/Sluggish 14, 13, 15, 2, 17, 10, 16, 7, 8 & 3 Spark Knock/Detonation 14, 13, 15, 2, 17, 10, 16, 7, 8 & 6 Cuts Out/Misses 14, 13, 15, 16, 7, 8 & 3 Backfire/Popback 14, 13, 15, 10, 16, 7 & 3 Runs Rough/Unstable Idle/Erratic Idle 14, 13, 5, 15, 2, 17, 10, 16, 7, 11, 8, 4, 6, 3, 9 & 12 Poor Fuel Economy 14, 13, 5, 15, 2, 17, 10, 16, 7, 11, 8, 4, 6, 3, 9 & 12
NO TROUBLE CODE TEST MENU
| Application | Test |
|---|---|
| Checking Engine Coolant Temperature Sensor Calibration | NTC-2 |
| Checking Exhaust Gas Recirculation System | NTC-3 |
| Checking Engine Mechanical Systems | NTC-4 |
| Checking Engine Vacuum | NTC-5 |
| Checking Evaporative Emission System | NTC-6 |
| Checking For Oxygen Sensor Switching | NTC-7 |
| Checking Idle Air Control Motor | NTC-8 |
| Checking Intake Air Temperature Sensor | NTC-9 |
| Checking Manifold Absolute Pressure Sensor Calibration | NTC-10 |
| Checking Oxygen Sensor Heater | NTC-11 |
| Checking Park/Neutral Switch | NTC-12 |
| Checking Powertrain Control Module Power & Ground Circuits | NTC-13 |
| Checking Secondary Ignition & Timing | NTC-14 |
| Checking Fuel Pressure | NTC-15 |
| Checking Minimum Idle Air Flow | NTC-16 |
| Checking Throttle Position Sensor Calibration | NTC-17 |
| Checking Brake Switch Sense | NTC-18 |
| Checking Charging System | NTC-19 |