Chrysler P0108 Code is very serious and should be addressed immediately. This code is related to the Manifold Absolute Pressure Sensor, a transducer that varies resistance according to pressure changes in the Intake Manifold. When this code is triggered, the Powertrain Control Module (PCM) has trouble indicating the current air pressure within the Intake Manifold. The PCM cannot calculate fuel delivery accurately without the correct information from the MAP Sensor.
There are several potential causes of Chrysler P0108 Code, ranging from 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE to MAP SIGNAL CIRCUIT OPEN/HIGH RESISTANCE, to MAP SENSOR and POWERTRAIN CONTROL MODULE (PCM). It is important to identify the root cause of this code to repair the issue properly.
Causes and Solutions of Chrysler P0108 Code
| Cause | Solution |
|---|---|
| 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE | If necessary, check for shorted circuits and repair or replace the PCM. |
| MAP SIGNAL CIRCUIT SHORTED TO VOLTAGE | Check the signal circuit and repair any issues, or replace the PCM. |
| MAP SIGNAL CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT | Check the signal circuit and repair any issues, or replace the PCM. |
| MAP SIGNAL CIRCUIT OPEN/HIGH RESISTANCE | Check the signal circuit and repair any issues, or replace the PCM. |
| SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE | Check the ground circuit and repair any issues, or replace the PCM. |
| MAP SENSOR | Replace the MAP Sensor. |
| POWERTRAIN CONTROL MODULE (PCM) | Replace the PCM. |
The 5-Volt Supply Circuit
The 5-volt supply circuit is a very important system in the car. It is responsible for providing voltage to the sensor and other components. If there is a shortage in the 5-volt supply circuit, it can cause the Chrysler P0108 Code to be triggered. The best way to fix this issue is to check the circuit, repair any problems, or replace the PCM.
The MAP Signal Circuit
The MAP signal circuit sends the signal from the MAP Sensor to the PCM. If the MAP signal circuit is shorted to voltage, shorted to the 5-volt supply circuit, or has an open/high resistance, the Chrysler P0108 Code will be triggered. The best way to fix this issue is to check the signal circuit, repair any problems, or replace the PCM.
The Sensor Ground Circuit
The sensor ground circuit is responsible for providing a ground to the MAP Sensor. If there is an open/high resistance in the sensor ground circuit, the Chrysler P0108 Code will be triggered. The best way to fix this issue is to check the ground circuit, repair any problems, or replace the PCM.
The MAP Sensor
The MAP Sensor is responsible for providing the PCM with an indication of the current air pressure in the intake manifold. If the MAP Sensor is faulty, it can cause the Chrysler P0108 Code to be triggered. The best way to fix this issue is to replace the MAP Sensor.
The PCM
The Powertrain Control Module (PCM) is responsible for controlling the fuel delivery to the engine. If the PCM is faulty, it can cause the Chrysler P0108 Code to be triggered. The best way to fix this issue is to replace the PCM.
Conclusion
Chrysler P0108 Code is very serious and should be addressed immediately. There are several potential causes of this code, ranging from 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE to MAP SIGNAL CIRCUIT OPEN/HIGH RESISTANCE, to MAP SENSOR and POWERTRAIN CONTROL MODULE (PCM). It is important to identify the root cause of this code to repair the issue properly. Solutions for each cause include checking and correcting the circuits, replacing the PCM, or replacing the MAP Sensor. Following these steps, you can successfully diagnose and repair the Chrysler P0108 Code.