Test NTC-1A: No Trouble Code Test Menu
Select symptom that most accurately describes vehicle's driveability problem. See NO TROUBLE CODE SYMPTOM table. Perform NTC tests that pertain to this symptom. See NO TROUBLE CODE TEST MENU table. Perform NTC test in specified sequence until driveability problem is found.
NO TROUBLE CODE SYMPTOM
| Application |
Perform NTC Tests |
| Hard Start |
2A
, 4A
-9A
, 12A
-13A
& 16A
-17A |
| Start & Stall |
2A
-3A
, 5A
-9A
& 12A |
| Hesitation/Sag/Stumble |
2A
-13A
& 16A
-18A |
| Surge |
2A
-3A
, 5A
-10A
, 12A
& 16A |
| Lack Of Power/Sluggish |
2A
-3A
, 5A
-10A
& 12A |
| Spark Knock/Detonation |
2A
-3A
, 5A
-10A
, 12A
& 16A |
| Cuts Out/Misses |
2A
-3A
, 5A
, 9A
-10A
& 12A |
| Backfire |
2A
-3A
, 5A
& 8A
-10A |
| Runs Rough/Unstable Idle/Erratic Idle |
2A
-13A
& 16A
-18A |
| Poor Fuel Economy |
2A
-13A
& 16A
-18A |
NO TROUBLE CODE TEST MENU
| Application |
Test |
| Checking Secondary Ignition |
NTC-2A |
| Checking PCM Power & Ground Circuits |
NTC-3A |
| Checking Engine Vacuum |
NTC-4A |
| Checking Fuel Delivery/Pressure |
NTC-5A |
| Checking ECT Sensor Calibration |
NTC-6A |
| Checking TP Sensor Calibration |
NTC-7A |
| Checking MAP Sensor Calibration |
NTC-8A |
| Checking Minimum Idle Air Flow |
NTC-9A |
| Checking HO2S Switching |
NTC-10A |
| Checking HO2S Heater |
NTC-11A |
| Checking IAC Motor |
NTC-12A |
| Checking Engine Mechanical Systems |
NTC-13A |
| Checking BTS |
NTC-14A |
| Checking Brake Switch |
NTC-15A |
| Checking EVAP System |
NTC-16A |
| Checking IAT Sensor |
NTC-17A |
| Checking P/N Switch (A/T) |
NTC-18A |
| Checking Oil Pressure Sensor |
NTC-19A |
| Checking A/C System |
NTC-20A |
| Checking Radiator Fan Operation |
NTC-21A |
| Checking Charging System |
NTC-22A |