LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 599 (3.0L Diesel - DTCS P0001-00 To P0263-00 - 1500) >> Diagnosis And Testing >> P0108-00-Manifold Absolute Pressure Sensor Circuit High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    NOTE:

    If there are any 5-Volt supply DTCs present, repair those DTCs before proceeding.

    1. Turn the ignition on.
    2. With the scan tool, record all Freeze frame data.
    3. With the scan tool, erase DTCs.
    4. Turn the ignition off for 75 seconds.
    5. Turn the ignition on.
    6. With the scan tool, read DTCs.

      Did the DTC reset?

      Yes 

      • Go To  2

      No 

      • Perform to the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
  2. CHECK THE (K37) BOOST PRESSURE SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the Boost Pressure Sensor harness connector.
    3. Turn the ignition on.
    4. Measure the voltage on the (K37) Boost Pressure Signal circuit at the Boost Pressure Sensor harness connector.

      Is the voltage above 5.2 Volts?

      Yes 

      • Repair the (K37) Boost Pressure Signal circuit for a short to voltage.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (K37) BOOST PRESSURE SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Measure the resistance of the (K37) Boost Pressure Signal circuit between the Boost Pressure Sensor harness connector and the PCM C2 harness connector.

      Is the resistance above 5.0 Ohms?

      Yes 

      • Repair the (K37) Boost Pressure Signal circuit for an open/high resistance.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK THE (K690) SENSOR RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (K690) Sensor Return circuit between the Boost Pressure Sensor harness connector and the PCM C2 harness connector.

      Is the resistance above 5.0 Ohms?

      Yes 

      • Repair the (K690) Sensor Return circuit for a open/high resistance.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  5
  5. BOOST PRESSURE SENSOR 
    1. Turn the ignition off.
    2. Replace the Boost Pressure Sensor in accordance with the service information.
    3. Turn the ignition on.
    4. With the scan tool, erase PCM DTCs.
    5. Turn the ignition on, start the engine.
    6. Run the vehicle through normal driving conditions.
    7. With the scan tool, read PCM DTCs.

      Does the scan tool display this DTC?

      Yes 

      • Replace the Powertrain Control Module in accordance with the service information. Refer to REMOVAL .
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

scientia non olet · About LEMON Manuals