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Home › Jeep › 2008 › Commander Base, 3.7 K, AWD › Repair and Diagnosis › Engine Performance › System › DTCS P2096 To P2174 › P2110-Electronic Throttle Control - Forced Limited Rpm › Diagnostic Test

Diagnostic Test

  1. ACTIVE DTC 
    NOTE: When this DTC is Active the engine speed, torque, and vehicle speed are limited to a Limp in mode.
    NOTE: If P2072 is also set, this indicates that the cold weather ice blockage routine has run. No repair action is required.

    Ignition on, engine not running.

    With a scan tool, select View DTCs.

    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.

    Is the DTC Active at this time? 

    Yes 

    1. Go To  2.

    No 

    1. Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
  2. THROTTLE PLATE STUCK 

    Turn the ignition off.

    Remove the Air Cleaner Assembly from the Throttle Body.

    Check for any signs of a foreign material (ice or dirt) causing the Throttle to stick.

    Were any problems found? 

    Yes 

    1. 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.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Go To  3.
  3. (K124) 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
    GC0069985Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Throttle Body harness connector.

    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 Miller Special Tool #8815 to perform diagnosis.

    Measure the resistance of the (K124) ETC Positive circuit from the Throttle Body harness connector to the appropriate terminal of special tool #8815.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  4.

    No 

    1. Repair the open in the (K124) ETC Positive circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .
  4. (K126) 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
    GC0069986Courtesy of CHRYSLER LLC

    Measure the resistance of the (K126) ETC Negative circuit from the Throttle Body harness connector to the appropriate terminal of special tool #8815.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  5.

    No 

    1. Repair the open in the (K126) ETC Negative circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .
  5. (K124) ETC POSITIVE CIRCUIT SHORTED TO GROUND 
    Fig 3: Checking Electronic Throttle Control Positive Circuit For Short To Ground
    GC0027207Courtesy of CHRYSLER LLC

    Measure the resistance between a known good ground and the (K124) ETC Positive circuit at the appropriate terminal of special tool #8815.

    Is the resistance below 100 ohms? 

    Yes 

    1. Repair the short to ground in the (K124) ETC Positive circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Go To  6.
  6. (K126) ETC NEGATIVE CIRCUIT SHORTED TO GROUND 
    Fig 4: Checking Electronic Throttle Control Negative Circuit For Short To ground
    GC0027208Courtesy of CHRYSLER LLC

    Measure the resistance between a known good ground and the (K126) ETC Negative circuit at the appropriate terminal of special tool #8815.

    Is the resistance below 100 ohms? 

    Yes 

    1. Repair the short to ground in the (K126) ETC Negative circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Go To  7.
  7. ETC MOTOR 
    Fig 5: Checking Electronic Throttle Control Motor Resistance
    GC0027209Courtesy of CHRYSLER LLC
    NOTE: Take the following measurement using special tool #8815 to avoid possible damage to the Throttle Body harness connector.

    Measure the resistance of the ETC Motor between the (K124) ETC Positive circuit and the (K126) ETC Negative circuit at the appropriate terminals of special tool #8815.

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

    Yes 

    1. Go To  8.

    No 

    1. Replace the Throttle Body Assembly. Disconnect the Battery when replacing the Throttle Body Assembly. After installation is complete, use a scan tool and select the ETC RELEARN function.
    2. Perform POWERTRAIN VERIFICATION TEST .
  8. POWERTRAIN CONTROL MODULE (PCM) 

    Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM).

    Look for any chafed, pierced, pinched, or partially broken wires.

    Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors.

    Refer to any Technical Service Bulletins that may apply.

    Were there any problems found? 

    Yes 

    1. Repair as necessary.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Replace and program the Powertrain Control Module per Service Information.
    2. Perform POWERTRAIN VERIFICATION TEST .
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