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Home >> Plymouth >> 1996 >> Voyager Base, 2.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.4L >> Trouble Code Tests >> Test TC-10A - Auto Shutdown Relay Control Circuit

Test TC-10A - Auto Shutdown Relay Control Circuit

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY  . For wiring diagram, see WIRING DIAGRAMS - 2.4L article.
  1. Using scan tool, actuate Auto Shutdown (ASD) relay. Listen for clicking sound at ASD relay. The ASD relay is located in power distribution center at driver's side front corner of engine compartment, near battery. See Fig 1 .
  2. If no clicking sound is heard at ASD relay, go to step 7). If clicking sound is heard at ASD relay, conditions required to set DTC are not present at this time.
  3. The ASD relay provides voltage to fuel injectors, ignition coils, oxygen sensors, generator and low pressure solenoid. DTC may be stored in Powertrain Control Module (PCM) if an open or shorted condition is detected in the ASD relay control circuit. Possible causes are: ASD relay coils open or shorted, open fused ignition circuit to ASD relay, ASD control circuit open or shorted, inoperative circuit driver in PCM, defective PCM, defective connector terminals or wiring. Go to next step.
  4. Check for defective wiring or connections at ASD relay and PCM. The PCM is located between driver's side front fender and power distribution center, near battery. If defective wiring or connections exist, repair as necessary. Perform TEST VER-2A.
  5. If no defective wiring or connections exist, start engine. Wiggle wiring harness from ASD relay to the PCM.
  6. If engine stalls when wiggling the wiring harness, repair wiring as necessary. Perform TEST VER-2A. If engine does not stall, see INACTIVE TROUBLE CODE CONDITION  .
  7. Remove ASD relay from power distribution center. See Fig 1 . Using scan tool in voltmeter mode, check voltage at cavity "A" B+ circuit (Red wire) in power distribution center. See Fig 1 .
    Fig 1: ASD Relay Location & Power Distribution Cavities
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  8. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open circuit in B+ circuit (Red wire) to ASD relay. Perform TEST VER-2A.
  9. Using external ohmmeter, check resistance between terminals No. 85 and 86 on ASD relay. See Fig 2 .
    Fig 2: Identifying ASD Relay Terminals
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  10. If resistance less than 100 ohms, go to next step. If resistance 100 ohms or more, replace ASD relay. Perform TEST VER-2A.
  11. Ensure ignition is off. Disconnect Gray connector from Powertrain Control Module (PCM). The PCM is located between driver's side front fender and power distribution center, near battery.
  12. Using scan tool in ohmmeter mode, check resistance at PCM connector terminal No. 67 (Dark Blue/Yellow wire). If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, repair ASD relay control circuit for short to ground in Dark Blue/Yellow wire between PCM and ASD relay. Perform TEST VER-2A.
  13. Using external ohmmeter, check resistance between cavity "C" (Dark Blue/Yellow wire) for ASD relay on power distribution center and PCM connector terminal No. 67 (Dark Blue/Yellow wire). See Fig 1 .
  14. If resistance is 5 ohms or more, repair open circuit in Dark Blue/Yellow wire between PCM and ASD relay. Perform TEST VER-2A. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-2A.
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