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Test TC-3A - No Cam Sync Signal At Pcm (DTC 54)

WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit & connector terminal identification, see CONNECTOR IDENTIFICATION DIRECTORY TABLE  . For wiring diagrams, see WIRING DIAGRAMS  section. After each repair, perform TEST VER-2  .
  1. Using DRB, erase trouble codes. Attempt to start engine. If necessary, crank engine for at least 10 seconds. Using DRB, read trouble codes. If DRB displays CRANK ONLY, go to step 5). If DRB does not display CRANK ONLY, go to next step.
  2. At this time, the condition required to set trouble code is not present. CRANK ONLY trouble code sets if Powertrain Control Module (PCM) does not see cam signal with crank signal present. Possible causes are: open 8-volt power supply at Camshaft Position (CMP) sensor, open or shorted CMP sensor signal wire, open CMP sensor ground, failed CMP sensor, improperly adjusted CMP sensor, or failed PCM. Go to next step.
  3. Inspect CMP wiring and connectors. Repair as required. If wiring and connectors are okay, go to next step.
  4. Start engine. Wiggle wiring harness from CMP sensor to PCM. If engine stalls when wiring harness is wiggled, repair area where wiggling caused problem to appear. If engine does not stall when wiring harness is wiggled, see INACTIVE TROUBLE CODE CONDITION  in this article. Test is complete.
  5. If DRB displays CRANK ONLY in step 1), turn ignition off. Disconnect Camshaft Position (CMP) sensor connector. Turn ignition on. Using DRB in voltmeter mode, check voltage on CMP sensor connector terminal No. 1 (Orange wire). If voltage is less than 7 volts, repair open Orange wire. If voltage is more than 7 volts, go to next step.
  6. Turn ignition off. Connect a jumper wire to CMP connector terminal No. 3 (Tan/Yellow wire). Turn ignition on. Using DRB, read DIS signal status. Observe DRB while tapping other end of jumper wire to CMP sensor connector terminal No. 2 (Black/Light Blue wire). If DRB displays CAM ONLY, replace CMP sensor. If DRB does not display CAM ONLY, go to next step.
  7. Disconnect jumper wire. Turn ignition off. Using DRB in ohmmeter mode, check resistance of CMP sensor connector terminal No. 2 (Black/Light Blue wire). If resistance is more than 5 ohms, repair open in Black/Light Blue wire. If resistance is less than 5 ohms, go to next step.
  8. Ensure ignition is off. Disconnect Powertrain Control Module (PCM) connector. PCM is located under air cleaner. Inspect PCM connector. Repair any terminals that are damaged, pushed out or miswired. If PCM connector is okay, go to next step.
  9. Using an external ohmmeter, check resistance of Tan/Yellow wire between PCM connector terminal No. 44 and CMP sensor connector terminal No. 3. If resistance is more than 5 ohms, repair open Tan/Yellow wire. If resistance is less than 5 ohms, go to next step.
  10. Using DRB in ohmmeter mode, check resistance of PCM connector terminal No. 44 (Tan/Yellow wire). If resistance is more than 5 ohms, replace PCM. If resistance is less than 5 ohms, repair short to ground in Tan/Yellow wire.
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