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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (3.6L - DTCS P0463 To P06DA) >> Diagnosis And Testing >> P0506-Idle Speed Performance Lower Than Excepted >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    NOTE:

    If any other Throttle Body DTCs are present, they must be diagnosed and repaired before continuing this test.

    1. Start the engine.
    2. Allow the engine to reach normal operating temperature.
      WARNING:

      When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in possible serious or fatal injury.

    3. With a scan tool, select View DTCs.
      NOTE:

      It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data.

      Is the DTC Active or Pending at this time?

      Yes 

      • Go To  2

      No 

  2. AIR INDUCTION SYSTEM 
    1. Inspect the Air Induction System for restrictions - Dirty Air Cleaner, Foreign material trapped in the air intake tube, etc.

      Were any problems found?

      Yes 

      No 

      • Go To  3
  3. PCV SYSTEM 
    1. Inspect the PCV system for restrictions - sticking valve, collapsed hoses or tubes, obstructed passages or ports, etc.

      Were any problems found?

      Yes 

      No 

      • Go To  4
  4. THROTTLE BODY OPERATION 
    1. Inspect the throttle body for carbon build up, other restrictions, and a bent throttle plate using a straight edge.
    2. If the throttle plate does not close entirely it may be bent and needs to be replaced.
      WARNING:

      When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in possible serious or fatal injury.

    3. While the vehicle is running, lightly tap on ETC Motor where applicable, with your hand, and listen for idle to raise.

      Were any problems found or did the idle fluctuate while tapping on the ETC Motor?

      Yes 

      • Verify that there is good pin to terminal contact at the Throttle Body and the Powertrain Control Module connectors. Repair or 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 .

      No 

      • Go To  5
  5. 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 Powertrain Control Module connectors.
    4. Perform any Technical Service Bulletins that may apply.

      Were there any problems found?

      Yes 

      No