Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSJEEP2009COMPASS LIMITED, EDG, AUTOMATIC CVTREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANS(TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGP0712-TRANSMISSION TEMPERATURE SENSOR LOWDIAGNOSTIC TEST
2009 Jeep Compass Limited, EDG, Automatic CVT
Diagnostic Test
2009 Jeep Compass Limited, EDG, Automatic CVTSECTION Diagnostic Test
- CHECK IF THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE
- CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Turn the ignition off to the lock position.
- Disconnect the TCM C2 harness connector.
- Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
- Measure the resistance between ground and the (T54) Transmission Temperature Sensor Signal circuit.
Is the resistance below 5.0 Ohms?
Yes
- Repair the (T54) Transmission Temperature Sensor Signal circuit for a short to ground.
- Perform the CVT VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
No
- Go to step 3
- CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR
Temperature Sensor Resistive Values Chart Transmission Temperature Resistive Value Compared to Temperature (± 10%) 20°C (68°F) 2.5k to 6.5k Ohms 80°C (176°F) 0.3k to 0.9k Ohms - Reconnect all previously disconnected connectors.
- Start the engine and allow to obtain normal operating temperature (approximately 10 min. of engine run time).
- Turn the ignition off to the lock position.
- Disconnect the TCM C2 harness connector.
- Measure the resistance between the (T54) Transmission Temperature Sensor Signal circuit and the (T13) Sensor Ground circuit in the TCM C2 harness connector.
Is the resistance within the desired range listed on the above chart?
Yes
- 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 the TCM in accordance with the Service Information.
- Perform the CVT VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
No
- Replace the Transmission Temperature Sensor (Valve Body) in accordance with the Service Information.
- Perform the CVT VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
- INTERMITTENT WIRING AND CONNECTORS
- The conditions necessary to set this DTC are not present at this time.
- Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
- Wiggle the wires while checking for shorted and open circuits.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the CVT VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
No
- Test Complete.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.