LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Controls - Tests W/Codes - 2.5L Flex Fuel) >> No-Start Tests >> Test NS-6A - Correcting No Response Condition

Test NS-6A - Correcting No Response Condition

WARNING: This page is about a different car, the 1994 Plymouth Acclaim and 1994 Dodge Spirit. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION DIRECTORY TABLE  . For wiring diagrams, see WIRING DIAGRAMS  .
  1. If vehicle starts, go to TEST NS-6B. If vehicle does not start, turn ignition off. Disconnect Throttle Position Sensor (TPS) connector. Turn ignition on. Put DRB in voltmeter mode.
  2. Using DRB, check voltage on TPS connector Violet/White wire. If voltage is less than 6 volts, go to next step. If voltage is more than 6 volts, repair open ground circuits at Powertrain Control Module (PCM) connector terminals No. 5 (Black/White wire), No. 11 (Black/Tan wire) and No. 12 (Black/Tan wire). Perform TEST VER-1  .
  3. If voltage is less than 4.4 volts, go to step 5). If voltage is more than 4.4 volts, reconnect TPS connector. Disconnect Manifold Absolute Pressure (MAP) sensor connector.
  4. Using DRB, check voltage on MAP sensor connector Violet/White wire. If voltage is more than 4.4 volts, go to TEST NS-6B. If voltage is less than 4.4 volts, replace TPS. Perform TEST VER-1.
  5. Disconnect MAP sensor electrical connector. Using DRB, check voltage on TPS connector Violet/White wire. If voltage is more than 4.4 volts, replace MAP sensor. Perform TEST VER-1.
  6. If voltage is less than 4.4 volts, turn ignition off. Disconnect PCM connector. Put DRB in ohmmeter mode. Using DRB, check resistance of PCM connector terminal No. 6 (Violet/White wire).
  7. If resistance is less than 5 ohms, repair short to ground in Violet/White wire. Perform TEST VER-1. If resistance is more than 5 ohms, using an external ohmmeter, check resistance between PCM connector terminal No. 4 (Black/Light Blue wire) and PCM connector terminal No. 6 (Violet/White wire).
  8. If resistance is less than 5 ohms, repair short to ground in Violet/White wire. If resistance is more than 5 ohms, turn ignition on. Put DRB in voltmeter mode. Using DRB, check voltage on PCM connector terminal No. 9 (Dark Blue wire).
  9. If voltage is less than 10 volts, repair open in Dark Blue wire between PCM connector and ignition switch. Perform TEST VER-1. If voltage is more than 10 volts, go to next step.
  10. Using DRB, check voltage on PCM connector terminal No. 3 (Red/White wire). If voltage is more than 10 volts, replace PCM. Perform TEST VER-1. If voltage is less than 10 volts, go to next step.
  11. Go to TEST NS-6C  .
scientia non olet · About LEMON Manuals