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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 599 (3.0L Diesel - DTCS P0001-00 To P0263-00 - 1500) >> Diagnosis And Testing >> P0048-00-Turbocharger Boost Control 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. DTC IS ACTIVE 
    1. Ignition on, engine not running.
    2. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2

      No 

      • Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
  2. CHECK THE (K137) BOOST PRESSURE ACTUATOR CONTROL CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 1: Checking Boost Pressure Actuator Control Circuit For A Short To Voltage
    GC0143593Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Boost Pressure Actuator harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (K137) Boost Pressure Actuator Control circuit in the Boost Pressure Actuator harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (K137) Boost Pressure Actuator Control circuit for a short to voltage.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (K137) BOOST PRESSURE ACTUATOR CONTROL FOR A SHORT TO THE (F343) FUSED ASD RELAY OUTPUT CIRCUIT 
    Fig 2: Checking Boost Pressure Actuator Control Circuit For A Short To Fused ASD Relay Output Circuit
    GC0143594Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the PCM C1 harness connector.
    3. Measure the resistance between the (K137) Boost Pressure Actuator Control circuit and the (F343) Fused ASD Relay Output circuit at the Boost Pressure Actuator harness connector.

      Is the resistance above 10k Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the (K137) Boost Pressure Actuator Control circuit for a short to the (F343) Fused ASD Relay Output circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  4. BOOST PRESSURE ACTUATOR 
    1. Reconnect the Boost Pressure Actuator harness connector.
    2. Reconnect the PCM C1 harness connector.
    3. Turn the ignition on.
    4. With the scan tool, erase DTCs.
    5. Turn the ignition off.
    6. Disconnect the Boost Pressure Actuator harness connector.
    7. Connect a jumper between ground and the (K137) Boost Pressure Actuator Control circuit at the Boost Pressure Actuator harness connector.
    8. Turn the ignition on.
    9. With the scan tool, view DTCs.
      NOTE:

      The scan tool should display a P0047-Turbocharger Boost Control Circuit Low DTC with the jumper in place.

      Did the scan tool display the DTC as described above?

      Yes 

      No 

      • Go To  5
  5. POWERTRAIN CONTROL MODULE 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Boost Pressure Actuator and the Powertrain Control Module (PCM).
    2. Look for any chafed, pierced, pinched, or partially broken wires.
    3. Look for broken, bent, pushed out or corroded terminals.
    4. Perform any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No