Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Powertrain Control Module (PCM) DTCs and Freeze Frame Data and record on the repair order.
2. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
3. With the scan tool, read PCM DTCs.
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT DTC Diagnostic Procedure. Refer to INTERMITTENT CONDITION .
CHECK THE AIR FILTER
1. Turn the ignition off.
2. Remove and inspect the Air Filter and housing inlet for snow, soiling or excessive dirt and debris which may cause air flow restriction.
  Were any problems found?
  
  Yes
  - Repair or replace as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
CHECK FOR INTAKE SYSTEM LEAKS OR RESTRICTIONS
NOTE:
Damaged, restricted or poorly connected Intake System and Turbocharger System related tubes can cause this DTC to set.
1. Inspect all air intake, crankcase vent and Turbocharger related hoses/tubes and clamps for leaks or damage.
2. Inspect all boost pressure system hoses for leaks or restrictions.
3. Inspect the Intercooler Assembly for signs of a leak.
  Were any problems found?
  
  Yes
  - Repair or replace as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
CHECK FOR EXHAUST SYSTEM RESTRICTIONS
2. Inspect the complete exhaust system for damaged, bent or clogged pipes that can cause exhaust system restrictions and excessive back pressure.
  Were any problems found?
  
  Yes
  - Repair or replace as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To
    Refer to 5.
WASTEGATE AND SOLENOID INSPECTION
1. Inspect the Wastegate Solenoid, linkage and the Wastegate for proper operation. Refer to the appropriate Service Information.
2. Inspect and test each of the Wastegate Solenoid vacuum/pressure hoses between the engine, the Wastegate Solenoid and the Wastegate Valve.
3. Inspect and test each of the Wastegate Solenoid electrical circuits between the solenoid connector and PCM C1 harness connector.
  NOTE:
  Test each electrical circuit for high resistance, a short to ground and a short to voltage.
  
  Were any problems found?
  
  Yes
  - Repair or replace as necessary.
  - Perform the PCM VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Repair or replace the Turbocharger in accordance with the Service Information.
    Refer to TURBOCHARGER, REMOVAL AND INSTALLATION .
  - Perform the PCM VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .