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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 435 (6.7L Diesel - DTCS P1209 To P2281 - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> P208D-(Diesel Exhaust Fluid) REDUCTANT Pump Control Circuit High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    1. Turn the ignition on, engine not running.
    2. With the scan tool, navigate to Systems Tests and actuate the Diesel Exhaust Fluid Doser Pump Override Test.
    3. With the scan tool, View DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

      • Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to STANDARD PROCEDURE .
  2. CHECK FOR THE DEF SUPPLY PUMP MOTOR A SUPPLY CIRCUIT SHORTED TO ANOTHER CIRCUIT 
    1. Turn the ignition off.
    2. Disconnect the DEF Supply Pump Assembly harness connector.
    3. Disconnect the DEF Dosing Control Unit C2 harness connector.
    4. Measure the resistance between and the DEF Supply Pump Motor A Supply circuit and all other circuits at the DEF Dosing Control Module C2 harness connector.

      Is the resistance above 10k Ohms between the DEF Supply Pump Motor A Supply circuit and all other circuits?

      Yes 

      • Go To  3

      No 

      • Repair the DEF Supply Pump Motor A Supply circuit for a short to the circuit that measured below 10k Ohms.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  3. CHECK FOR THE DEF SUPPLY PUMP MOTOR B SUPPLY CIRCUIT SHORTED TO ANOTHER CIRCUIT 
    1. Measure the resistance between and the DEF Supply Pump Motor B Supply circuit and all other circuits at the DEF Dosing Control Unit C2 harness connector.

      Is the resistance above 10k Ohms between the DEF Supply Pump Assembly Return circuit and all other circuits?

      Yes 

      • Go To  4

      No 

      • Repair the DEF Supply Pump Motor A Supply circuit for a short to the circuit that measured below 10k Ohms.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  4. CHECK FOR THE DEF SUPPLY PUMP MOTOR C SUPPLY CIRCUIT SHORTED TO ANOTHER CIRCUIT 
    1. Measure the resistance between and the DEF Supply Pump Motor C Supply circuit and all other circuits at the DEF Dosing Control Unit C2 harness connector.

      Is the resistance above 10k Ohms between the DEF Supply Pump Motor C Supply circuit and all other circuits?

      Yes 

      • Go To  5

      No 

      • Repair the DEF Supply Pump Motor C Supply circuit for a short to the circuit that measured below 10k Ohms.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  5. CHECK THE DEF DOSING CONTROL UNIT 
    1. Reconnect the DEF Dosing Control Unit C2 harness connector. Leave the DEF Supply Pump Assembly harness connector disconnected.
    2. Turn the ignition on.
    3. With a scan tool, View DTCs.

      Did DTC P208A become active and DTC P208D change to stored with the DEF Supply Pump Assembly harness connector disconnected?

      Yes 

      No 

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