Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

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 .
CHECK THE (K137) BOOST PRESSURE ACTUATOR CONTROL CIRCUIT FOR A SHORT TO GROUND

Fig 1: Checking Boost Pressure Actuator Control Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Boost Pressure Actuator harness connector.
3. Disconnect the PCM C1 harness connector.
4. Measure the resistance between ground and the (K137) Boost Pressure Actuator Control circuit in the Boost Pressure Actuator harness connector.
  Is the resistance above 10k Ohms?
  
  Yes
  - Go To 3
  No
  - Repair the (K137) Boost Pressure Actuator Control circuit for a short to ground.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
CHECK THE (K137) BOOST PRESSURE ACTUATOR CONTROL CIRCUIT FOR A SHORT TO THE (Z909) BOOST PRESSURE ACTUATOR GROUND CIRCUIT

Fig 2: Checking Short Between Boost Pressure Actuator Control Circuit And Boost Pressure Actuator Ground Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between the (K137) Boost Pressure Actuator Control circuit and the (Z909) Boost Pressure Actuator Ground circuit at the Boost Pressure Actuator harness connector.
  Is the resistance above 10k Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the short between the (K137) Boost Pressure Actuator Control circuit and the (Z909) Boost Pressure Actuator Ground circuit.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
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 the (K137) Boost Pressure Actuator Control circuit and the (F343) Fused Ignition Switch Output 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 P0048-Turbocharger Boost Control Circuit High DTC with the jumper in place.
  
  Did the scan tool display the DTC as described above?
  
  Yes
  - Replace the Turbocharger assembly in accordance with the service information. Refer to TURBOCHARGER, REMOVAL .
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go To 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
  - Repair as necessary.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Replace the Powertrain Control Module in accordance with the service information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .