P0320 - IGNITION/DISTRIBUTOR ENGINE SPEED INPUT CIRCUIT

The CKP sensor (Crankshaft Position Sensor) sends information about the position or synchronization of the crankshaft to the PCM (Powertrain Control Module). This information is used in the engine RPM.

On the other hand, the CMP sensor (Camshaft Position Sensor) tells the PCM the exact position of the camshaft, as well as the time of it.

When there is an electrical problem in one of these circuits, the PCM sets the DTC code P0320 OBD2. It should be noted that this fault code refers to an electrical problem only.

• Malfunction light illumination.
• Misfiring.
• Power loss.
• the engine may turn on, but it does not start.

The factors that can lead to the establishment of the P0320 OBDII diagnostic code are the following:

• The power supply circuit between the VSS sensor (Vehicle Speed ​​Sensor) and the PCM may have problems, causing a short.
• Short circuit to ground in the supply circuit between the ISS sensor (Input Speed Sensor) and the PCM.
• ISS sensor in poor condition.

Fault code P0320 OBD2 checks the following for correct correction:

• Check the TBS (Technical Service Bulletins) for the model of your vehicle. The solution to your problem may be known by the manufacturer. This can save time and money.
• Diagnostic if there is a low voltage condition, repair if necessary.
• Inspect the cables and connectors that are related to the Camshaft Position Sensor (CMP). If there are problems with one of these components, repair it or change it.
• Change the CMP sensor.
• Check the cables and respective connectors that lead to the Crankshaft Position Sensor (CKP). Make the necessary repair or change any component of these.
• Replace the CKP sensor.
• Cables and connectors related to the Vehicle Speed ​​Sensor (VSS) may have wear or corrosion. Proceed to repair if you find problems, and if necessary change it.
• Change the VSS sensor.