Test NS-1A - Qualifying No-Start Condition
WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, 1995 Dodge Dakota, and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
When checking for spark, Powertrain Control Module (PCM) damage may occur if spark plug cable is held more than 1/4" away from ground.
- Attempt to crank engine. If engine does not crank, go to TEST NS-9A. If engine cranks, turn ignition off. Disconnect spark plug cable at No. 1 spark plug. Insert an insulated screwdriver in spark plug cable terminal. Hold screwdriver within 1/4" of ground.NOTE: When checking for spark, consider one or two sparks as a no spark condition.
- While cranking engine for 10 seconds, watch for spark. If a good spark occurs, go to TEST NS-2A. If a good spark does not occur, reconnect spark plug cable. Turn ignition off. Disconnect ignition coil secondary cable. Hold coil cable end within 1/4" of ground. While cranking engine for 10 seconds, watch for spark.
- If good spark occurs, repair secondary ignition system as necessary. Perform TEST VER-1. If a good spark does not occur, turn ignition off. Remove ignition coil secondary cable. Using an external ohmmeter, check resistance of ignition coil secondary cable. If resistance is more than 15 k/ohms, replace ignition coil secondary cable. Perform TEST VER-1.
- If resistance is less than 15 k/ohms, remove distributor cap. While watching distributor rotor, crank engine. If rotor does not turn, repair distributor drive system. Perform TEST VER-1.
- If rotor turns, reinstall distributor cap. Reinstall ignition coil secondary cable. Disconnect ignition coil electrical connector. Inspect all terminals. Repair as required. Perform TEST VER-1.
- If terminals are okay, turn ignition on. Using scan tool, actuate ASD fuel system. Using scan tool in voltmeter mode, check voltage on ignition coil connector, ASD relay output circuit (Dark Green/Orange wire). If voltage is less than 10 volts, repair open in Dark Green/Orange wire or Dark Green/Black wire. Perform TEST VER-1.
- If voltage is more than 10 volts, check voltage on ignition coil connector, driver circuit (Gray wire on AB and AN bodies; Black/Gray wire on BR body). If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, go to step 9).
- Check valve timing. Adjust valve timing as necessary. Perform TEST VER-1. If valve timing is okay, replace ignition coil. Perform TEST VER-1.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Using scan tool in ohmmeter mode, check resistance of PCM connector terminal No. 19 (Gray wire on AB and AN bodies; Black/Gray wire on BR body). If resistance is less than 5 ohms, repair short to ground in Gray wire, Black/Gray wire or Gray/White wire. Perform TEST VER-1.
- If resistance is more than 5 ohms, check resistance of ignition coil driver circuit (Gray wire on AB and AN bodies; Black/Gray wire on BR body) between ignition coil connector and PCM connector terminal No. 19 using an external ohmmeter. If resistance is more than 5 ohms, repair open Gray wire, Black/Gray wire or Gray/White wire. Perform TEST VER-1. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-1.