1995 Dodge Caravan check engine codes

CODE 54
DRB displays NO CAM SYNC SIGNAL AT PCM.

Condition is: open or shorted condition detected in cam sync signal circuit.

TEST TC-3A - NO CAM SYNC SIGNAL AT PCM (DTC 54)

1. Using scan tool, erase DTCs. Attempt to start engine. If engine will not start, crank engine for at least 20 seconds. Using scan tool, read DTCs. If scan tool does not display NO CAM SYNC SIGNAL AT PCM, go to next step. If scan tool displays NO CAM SYNC SIGNAL AT PCM, go to step 4).

2. At this time, condition required to set DTC is not present. NO CAM SYNC SIGNAL AT PCM DTC sets if Powertrain Control Module (PCM) does not see a camshaft position sensor signal with crankshaft position sensor signal present. Possible causes are: open or shorted camshaft position sensor Orange wire, open camshaft position sensor Black/Light Blue wire, open or shorted camshaft position sensor Gray/Black wire, damaged pulse ring, failed sensor, or failed PCM. Go to next step.

3. Inspect all related wiring and connectors. Repair as necessary. Perform TEST VER-2. If wiring and connectors are okay, see INACTIVE DTC CONDITION. Perform TEST VER-2.

4. Turn ignition off. Disconnect and inspect distributor connector. Repair as required. Perform TEST VER-2. If distributor connector is okay, go to next step.

5. Turn ignition on. Using scan tool in voltmeter mode, check voltage of distributor connector Tan/Yellow wire. If voltage is more than 4 volts, replace camshaft position sensor. Perform TEST VER-2.

6. If voltage is less than 4 volts, turn ignition off. Disconnect PCM connector. Using an external ohmmeter, check resistance of camshaft position sensor Tan/Yellow wire between distributor connector and PCM connector terminal No. 44.

7. If resistance is more than 5 ohms, repair open Tan/Yellow wire. Perform TEST VER-2. If resistance is less than 5 ohms, go to next step.

8. Using scan tool in ohmmeter mode, check resistance of PCM connector terminal No. 44 (Tan/Yellow wire). If resistance is less than 5 ohms, repair short to ground in Tan/Yellow wire. Perform TEST VER-2. If resistance is more than 5 ohms, replace PCM. Perform TEST VER-2.