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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 197 (3.7L/4.7L/5.7L - DTCS P1004 To P2172 - NGC - 1500 & 2500) >> Diagnosis And Testing >> P2110-Electronic Throttle Control - Forced Limited Rpm >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    1. Ignition on, engine not running.
    2. With a scan tool select View DTCs.
    3. In the Freeze Frame data, look at the temperature at which the fault occurred. If it occurred in extreme cold temperatures, Icing of the throttle body may have caused this code to set.
      NOTE:

      Diagnose any TP Sensor faults, 5-Volt Supply faults, and Battery Voltage High or Low DTCs before continuing.

      NOTE:

      If P2072 is also set, this indicates that the cold weather ice blockage routine has run. No repair action is required.

      Is the DTC Active at this time?

      Yes 

      • Go To  2.

      No 

  2. (K447) ETC POSITIVE CIRCUIT OPEN 
    Fig 1: Measuring Resistance Of (K447) ETC Positive Circuit From Throttle Body Harness Connector To Appropriate Terminal Of Special Tool #8815
    GC0090957Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Throttle Body harness connector.
    3. Disconnect the C2 PCM harness connector.
      CAUTION:

      Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis.

    4. Measure the resistance of the (K447) ETC Positive circuit from the Throttle Body harness connector to the appropriate terminal of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance below 5.0 ohms?

      Yes 

      • Go To  3.

      No 

  3. (K448) ETC NEGATIVE CIRCUIT OPEN 
    Fig 2: Measuring Resistance Of (K448) ETC Negative Circuit From Throttle Body Harness Connector To Appropriate Terminal Of Special Tool #8815
    GC0090959Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (K448) ETC Negative circuit from the Throttle Body harness connector to the appropriate terminal of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance below 5.0 ohms?

      Yes 

      • Go To  4.

      No 

  4. (K447) ETC POSITIVE CIRCUIT SHORTED TO GROUND 
    Fig 3: Measuring Resistance Between Ground And ETC Motor Positive Circuit At Appropriate Terminals Of Special Tool #8815
    GC0090958Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between a known good ground and the (K447) ETC Positive circuit at the appropriate terminal of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance below 100 ohms?

      Yes 

      • Repair the short to ground in the (K447) ETC Positive circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  5.
  5. (K448) ETC NEGATIVE CIRCUIT SHORTED TO GROUND 
    Fig 4: Measuring Resistance Between Ground And ETC Motor Negative Circuit At Appropriate Terminals Of Special Tool #8815
    GC0090960Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between a known good ground and the (K448) ETC Negative circuit at the appropriate terminal of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance below 100 ohms?

      Yes 

      • Repair the short to ground in the (K448) ETC Negative circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  6.
  6. ETC MOTOR 
    Fig 5: Measuring Resistance Between ETC Motor Positive Circuit And Negative Circuit At Appropriate Terminals Of Special Tool #8815
    GC0090837Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Take the following measurement using special tool (special tool #8815A, Kit, NGC, 38 Position) to avoid possible damage to the Throttle Body harness connector.

    1. Measure the resistance of the ETC Motor between the (K447) ETC Positive circuit and the (K448) ETC Negative circuit at the appropriate terminals of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance between 2.5 and 25 ohms at closed throttle?

      Yes 

      • Go To  7.

      No 

      • Verify that there is good pin to terminal contact at the Throttle Body and the Powertrain Control Module connectors. Replace the Throttle Body Assembly if no problems were found in the connectors. Disconnect the Battery when replacing the Throttle Body Assembly. After installation is complete, use a scan tool and select the ETC RELEARN function.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  7. THROTTLE PLATE STUCK 
    1. Turn the ignition off.
    2. Remove the Air Cleaner Assembly from the Throttle Body.
    3. Check for any signs of a foreign material (ice or dirt) causing the Throttle to stick.
    4. Using a scan tool, perform the ETC Throttle Follower Test.
    5. You may need an assistant to watch the Throttle Plate move.

      Does the Throttle Plate move during the test?

      Yes 

      • Go To  8.

      No 

      • Remove the debris if possible or replace the Throttle Body Assembly if signs of physical damage are present. Disconnect the Battery when replacing the Throttle Body Assembly. After installation is complete, use a scan tool and select the ETC RELEARN function.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  8. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM).
    2. Look for any chafed, pierced, pinched, or partially broken wires.
    3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Throttle Body and the Powertrain Control Module connectors.
    4. Refer to any Technical Service Bulletins that may apply.

      Were there any problems found?

      Yes 

      No 

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