Diagnostic Test

CHECK TO SEE IF THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE
1. Using 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 6.
CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR

Fig 1: Checking Transmission Temperature Sensor
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
3. Ignition on, engine not running.
4. In the following step using the scan tool, monitor the Transmission Temperature voltage.
5. Jump the (T54) Transmission Temperature Sensor Signal circuit in the Transmission Solenoid/Pressure Switch Assembly harness connector to ground.
  Did the Transmission Temperature voltage drop from approximately 2.5 Volts to 0.0 Volts?
  
  Yes
  - Replace the Transmission Temperature Sensor (Valve Body) in accordance with the Service Information.
  - Refer to STANDARD PROCEDURE and perform the CVT VERIFICATION TEST.
  No
  - Go To 3.
CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

Fig 2: Checking Transmission Temperature Sensor Signal Circuit For A Short To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Disconnect the TCM C2 harness connector.
3. Ignition on, engine not running.
4. Measure the voltage of the (T54) Transmission Temperature Sensor Signal circuit.
  Is the voltage above 0.5 of a Volt?
  
  Yes
  - Repair the (T54) Transmission Temperature Sensor Signal circuit for a short to voltage.
  - Refer to STANDARD PROCEDURE and perform the CVT VERIFICATION TEST.
  No
  - Go To 4.
CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN

Fig 3: Checking Transmission Temperature Sensor Signal Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Measure the resistance of the (T54) Transmission Temperature Sensor Signal 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 (T54) Transmission Temperature Sensor Signal circuit for an open.
  - Refer to STANDARD PROCEDURE and perform the CVT VERIFICATION TEST.
  No
  - Go To 5.

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

Fig 4: Checking Transmission Temperature Sensor Signal Circuit

Courtesy of CHRYSLER GROUP, LLC

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.
- Refer to STANDARD PROCEDURE and perform the CVT VERIFICATION TEST.
No
- Replace the Transmission Temperature Sensor (Valve Body) in accordance with the Service Information.
- Refer to STANDARD PROCEDURE and perform the CVT VERIFICATION TEST.

INTERMITTENT 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
  - Repair as necessary.
  - Refer to STANDARD PROCEDURE and perform the CVT VERIFICATION TEST.
  No
  - Test Complete.