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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (6.7L Diesel - DTCS - P040D To P1191 - 3500 Cab & Chassis) >> Diagnosis and Testing >> P061A-Etc Level 2 Torque Performance >> Testing >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. OTHER DTCS 
    1. Ignition on, engine not running.
    2. With the scan tool, read DTCs.

      Are there any other DTCs?

      Yes 

      No 

      • Go To  2.
  2. CHECK THE COOLANT TEMPERATURE SENSOR 
    1. With the scan tool, read the Freeze frame data.

      Is the coolant temperature reading uncharacteristically low for the operating conditions?

      Yes 

      • Replace Coolant Temperature Sensor in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Go To  3.
  3. CHECK THE ACCELERATOR PEDAL POSITION SENSOR 
    1. Monitor the APPS 1 and APPS 2 voltage with scan tool while depressing the throttle pedal.

      Is the voltage transition shown on the scan tool smooth while depressing the throttle and is the Volt swing smooth?

      Yes 

      • Go To  4.

      No 

  4. CHECK THE EXHAUST GAS PRESSURE SENSOR 
    1. With the scan tool, read the Freeze frame data.

      Is the Exhaust Gas Pressure Sensor reading higher than the Boost Pressure reading?

      Yes 

      • Replace the Exhaust Gas Pressure Sensor in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Go To  5.
  5. CHECK THE INTAKE MANIFOLD PRESSURE SENSOR 
    1. With the scan tool, read the Freeze frame data.

      Is the Boost Pressure Sensor reading higher than the Exhaust Gas Pressure Sensor reading?

      Yes 

      • Replace the Boost Pressure Sensor in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Go To  6.
  6. CHECK THE BRAKE SWITCH 
    1. Using a scan tool monitor brake switch position while cycling the brake pedal.

      Is the brake switch status changing correctly?

      Yes 

      • Go To  7.

      No 

  7. CHECK FOR SOFTWARE REVISION/TSBS 
    1. Check TSBs for software releases.

      Are there any new software releases?

      Yes 

      • Reflash the Powertrain Control Module in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Go To  8.
  8. CHECK FOR ENGINE OR FUEL MODIFICATIONS THAT EXCEED OEM SPECIFICATIONS 
    1. An Engine or Fuel modification that exceeds OEM specifications can affect the parameters that this diagnostic monitors.
    2. Any device/software that modifies the values reported by any of the Cummins actuators/sensors could fail this diagnostic.
    3. Any device that puts a high parasitic load on the engine could also cause this diagnostic to fail.

      Is there evidence of Engine or Fuel modifications that exceed OEM specifications?

      Yes 

      • Return vehicle to customer.

      No 

      • Replace Powertrain Control Module in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
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