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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 833 (3.0L Diesel - DTCS P067C-00 To P20BE-00 - 1500) >> Diagnosis And Testing >> P203C-00-REDUCTANT Level Sensor "A" Circuit Low >> Diagnostic Test

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.
  1. CHECK FOR ACTIVE DTC 
    1. Ignition on, engine not running.
    2. With the scan tool, erase DTCs in the Powertrain Control Module (PCM).
    3. Start the engine and allow to reach operating temperature.
    4. Test drive the vehicle during normal operating conditions.
    5. With the scan tool, read the PCM DTCs.

      Did this DTC return?

      Yes 

      • Go To  2

      No 

      • Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
  2. CHECK THE (K414) DEF LEVEL/TEMPERATURE SIGNAL FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the DEF Level/Temperature Sensor Assembly harness connector.
    3. Disconnect the PCM C1 harness connector.
    4. Measure the resistance between ground and the (K414) Def Level/Temperature Signal circuit at the DEF Level/Temperature Sensor Assembly harness connector.

      Is the resistance above 10k Ohms?

      Yes 

      • Go To  3

      No 

      • Repair the (K414) Def Level/Temperature Signal circuit for a short to ground. If P241D was also present, it will be necessary to reset the SCR Timer: Using the scan tool, Go to Misc. Functions> SCR Extend Mileage W Active Fault (and reset the Timer).
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  3. DEF LEVEL/TEMPERATURE SENSOR ASSEMBLY 
    1. Turn the ignition off.
    2. Replace the DEF Level/Temperature Sensor Assembly in accordance with the service information.
    3. Turn the ignition on.
    4. With the scan tool, erase PCM DTCs.
    5. Start the engine and allow to reach operating temperature.
    6. Test drive the vehicle during normal operating conditions.
    7. With the scan tool, read PCM DTCs.

      Does the scan tool display this DTC?

      Yes 

      • Replace the Powertrain Control Module in accordance with the service information. If P241D was also present, it will be necessary to reset the SCR Timer: Using the scan tool, Go to Misc. Functions> SCR Extend Mileage W Active Fault (and reset the Timer).
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Test complete. If P241D was also present, it will be necessary to reset the SCR Timer: Using the scan tool, Go to Misc. Functions> SCR Extend Mileage W Active Fault (and reset the Timer).
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
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