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

WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. 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 . For wiring diagrams, see WIRING DIAGRAMS section at the end of this article.

Turn ignition off. Disconnect Camshaft Position (CMP) sensor connector. Turn ignition on. Using scan tool in voltmeter mode, check voltage on CMP sensor connector, 8-volt supply circuit (Orange wire). If voltage is less than 7 volts, repair open Orange wire. Perform TEST VER-2.
If voltage is more than 7 volts, turn ignition off. Connect a jumper wire to CMP connector, signal circuit (Tan/Yellow wire). Turn ignition on. Using scan tool, read DIS signal status. Using other end of jumper wire, make and break connection at CMP sensor connector ground circuit (Black/Light Blue wire) several times. If scan tool does not recognize CAM signal, go to step 4).
If scan tool recognizes CAM signal, turn ignition off. Remove CMP sensor. Inspect cam sprocket for damage. Repair cam sprocket as necessary. Perform TEST VER-2. If cam sprocket is okay, replace CMP sensor. Perform TEST VER-2.
Turn ignition off. Remove jumper wire. Using scan tool in ohmmeter mode, check resistance of CMP connector, sensor ground circuit (Black/Light Blue wire). If resistance is more than 5 ohms, repair open Black/Light Blue wire. Perform TEST VER-2.
If resistance is less than 5 ohms, disconnect Powertrain Control Module (PCM) connector. Inspect PCM connector for damaged or pushed-out terminals. Repair as necessary. Perform TEST VER-2. If PCM connector terminals are okay, go to next step.
Using an external ohmmeter, check resistance of signal circuit (Tan/Yellow wire) between CMP sensor connector and PCM connector terminal No. 44. If resistance is more than 5 ohms, repair open Tan/Yellow wire. Perform TEST VER-2.
If resistance is less than 5 ohms, using scan tool in ohmmeter mode, check resistance of PCM connector terminal No. 44 (Tan/Yellow wire). If resistance is more than 5 ohms, replace PCM. Perform TEST VER-2. If resistance is less than 5 ohms, repair short to ground in Tan/Yellow wire. Perform TEST VER-2.