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 of these problems found?
  
  Yes
  - Replace the Air Filter or remove the obstruction.
  - 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 THE WASTEGATE VALVE AND LINKAGE FOR BINDING
1. Inspect the Wastegate Actuator, linkage and the Wastegate Valve for proper operation. Move the linkage by hand to check for any sticking or binding during travel.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
CHECK FOR EXHAUST SYSTEM RESTRICTIONS
1. 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 6
CHECK THE (K137) WASTEGATE SOLENOID CONTROL (+) CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
1. Turn the ignition off.
2. Disconnect the Wastegate Solenoid harness connector.
3. Disconnect the PCM C2 harness connector.
4. Measure the resistance of the (K137) Wastegate Solenoid Control (+) circuit between the PCM C2 harness connector and the Wastegate Solenoid harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 7
  No
  - Repair the (K137) Wastegate Solenoid Control (+) circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK THE (K139) WASTEGATE SOLENOID RETURN (-) CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
1. Measure the resistance of the (K139) Wastegate Solenoid Return (-) circuit between the PCM C2 harness connector and the Wastegate Solenoid harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 8
  No
  - Repair the (K139) Wastegate Solenoid Return (-) circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
REPLACE THE WASTEGATE SOLENOID AND RETEST FOR DTCS
1. Replace the Wastegate Solenoid in accordance with the Service Information.
2. Connect the Wastegate Solenoid and PCM harness connectors.
3. With the scan tool, erase DTCs.
4. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read PCM DTCs.
  Did the DTC return?
  
  Yes
  - Repair or replace the Turbocharger in accordance with the Service Information. Refer to TURBOCHARGER, REMOVAL AND INSTALLATION .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replacing the Wastegate Solenoid repaired the fault.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .