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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Engine Controls - Tests W/Codes - 2.5L) >> Self-Diagnostic Tests >> Test NTC-1A - No DTC Test Menu >> No DTC Complete Test

No DTC Complete Test

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.

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, perform TEST NTC-2A through TEST NTC-16A in sequence until driveability problem is found. See NO DTC TEST MENU table.

NO DTC TEST MENU

Application Test
Checking Secondary Ignition & Timing NTC-2A 
Checking Fuel Pressure NTC-3A 
Checking Coolant Sensor Calibration & Radiator Fan Operation NTC-4A 
Checking TP Sensor Calibration NTC-5A 
Checking MAP Sensor Calibration NTC-6A 
Checking Oxygen Sensor (O2S) Switching NTC-7A 
Checking Oxygen Sensor (O2S) Heater NTC-8A 
Checking Idle Air Control Motor NTC-9A 
Checking Solenoid Operations NTC-10A 
Checking Park/Neutral Switch NTC-11A 
Checking PCM Grounds & Power Circuits NTC-12A 
Checking EGR System NTC-13A
Checking Engine Vacuum NTC-14A 
Checking Minimum Idle Airflow NTC-15A 
No DTC Mechanical Test NTC-16A