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HOMESERVICE MANUALSJEEP2011COMPASS LIMITED, AWD, AUTOMATIC CVT, CVT3REPAIR AND DIAGNOSISTRANSMISSIONTRANSMISSION CONTROL SYSTEMS(TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGP1661-SENSOR GROUND REFERENCE CIRCUITDIAGNOSTIC TEST
2011 Jeep Compass Limited, AWD, Automatic CVT, CVT3

Diagnostic Test

2011 Jeep Compass Limited, AWD, Automatic CVT, CVT3SECTION Diagnostic Test
  1. CHECK TO SEE IF THE DTC IS ACTIVE 
    1. With the scan tool, read Transmission DTCs.

      Is the status Active or is the Starts Since Set counter 2 or less for this DTC?

      Yes 

      • Go To  2.

      No 

      • Go To  4.
  2. CHECK THE (T13) SENSOR GROUND CIRCUIT FOR AN OPEN 
    Fig 1: Measuring Resistance Of Sensor Ground Circuit
    GC0100361Courtesy of CHRYSLER LLC
    1. Turn the ignition off to the lock position.
    2. Disconnect the TCM C2 harness connector.
    3. Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
    4. Measure the resistance of the (T13) Sensor Ground circuit between the TCM C2 harness connector and the Transmission Solenoid/Pressure Switch Assembly harness connector.

      Is the resistance above 5.0 ohms?

      Yes 

      • Repair the (T13) Sensor Ground circuit for an open.
      • Perform CVT VERIFICATION TEST. Refer to Standard Procedure .

      No 

      • Go To  3.
  3. CHECK THE (T13) SENSOR GROUND CIRCUIT FOR AN OPEN INTERNALLY 
    1. Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for any Service Bulletins for possible causes that may apply. If no problems are found, replace and program the TCM in accordance with the Service Information.
    2. Perform CVT VERIFICATION TEST. Refer to Standard Procedure .

      Does the DTC reset during the Verification procedure?

      Yes 

      • Replace the CV Transmission or repair the valve body (internal wiring) in accordance with the Service Information.
      • Perform CVT VERIFICATION TEST. Refer to Standard Procedure .

      No 

      • Test Complete.
  4. CHECK THE WIRING AND CONNECTORS 
    1. The conditions necessary to set this DTC are not present at this time.
    2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
    3. Wiggle the wires while checking for shorted and open circuits.

      Were there any problems found?

      Yes 

      No 

      • Test Complete.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.