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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Tests W/Codes - 2.2L) >> No-Start Tests >> Test NS-1A - Qualifying No Start Condition

Test NS-1A - Qualifying No Start Condition

WARNING: This page is about a different car, the 1994 Plymouth Sundance and 1994 Dodge Shadow. 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.
NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION TABLE. For wiring diagrams, see WIRING DIAGRAMS  .
  1. Attempt to crank engine. If engine does not crank, go to TEST NS-9A  . If engine cranks, turn ignition off. Disconnect any spark plug cable at 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.
  2. 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. Disconnect another spark plug cable at spark plug, and repeat test.
  3. If a good spark occurs, replace spark plug cable that was initially used to test for spark. If a good spark does not occur, disconnect ignition coil wire. Hold coil wire within 1/4" of ground. While cranking engine for 10 seconds, watch for spark.
  4. If good spark occurred, 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.
  5. 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 did not turn, repair distributor drive system. Perform TEST VER-1.
  6. If rotor turned, 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 DRB, actuate Auto Shutdown (ASD) relay.
  7. Put DRB in voltmeter mode. Using DRB, check voltage on ignition coil connector Dark Green/Orange wire. If voltage is less than 10 volts, repair open in Dark Green/Orange wire. Perform TEST VER-1.
  8. If voltage is more than 10 volts, check voltage on ignition coil connector Black/Gray wire. If voltage is more than 10 volts, replace ignition coil. Perform TEST VER-1. If voltage is less than 10 volts, turn ignition off.
  9. Disconnect Powertrain Control Module (PCM) connector. Put DRB in ohmmeter mode. Using DRB, check resistance of PCM connector terminal No. 19 Black/Gray wire. If resistance is less than 5 ohms, repair open in appropriate wire. Perform TEST VER-1.
  10. If resistance is more than 5 ohms, using an external ohmmeter, check resistance of Black/Gray wire between ignition coil connector and PCM connector terminal No. 19. If resistance is more than 5 ohms, repair open in appropriate wire. Perform TEST VER-1. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-1.
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