Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

CHECK IF THE DTC IS CURRENT
1. With the scan tool, read 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 5.
(T9) OD PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE

Fig 1: Checking OD Pressure Switch Sense Circuit For Short To Voltage
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
2. Disconnect the PCM C4 harness connector.
3. Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
4. Ignition on, engine not running.
5. With the scan tool under TIPM, actuate the Transmission.
  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 the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis.
6. Measure the voltage of the (T9) OD Pressure Signal circuit.
  Is the voltage above 0.5 of a volt?
  
  Yes
  - Repair the (T9) OD Pressure Signal circuit for a short to voltage.
  - Perform the 42RLE TRANSMISSION VERIFICATION TEST. Refer to 42RLE TRANSMISSION VERIFICATION TEST .
  No
  - Go To 3.
(T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE

Fig 2: Checking Pressure Switch Sense Circuit For Short To Voltage
Courtesy of CHRYSLER LLC
1. With the scan tool under TIPM, actuate the Transmission.
2. Measure the voltage of the (T47) 2/4 Pressure Signal circuit.
  Is the voltage above 0.5 volt?
  
  Yes
  - Repair the (T47) 2/4 Pressure Signal circuit for a short to voltage.
  - Perform the 42RLE TRANSMISSION VERIFICATION TEST. Refer to 42RLE TRANSMISSION VERIFICATION TEST .
  No
  - Go To 4.
(T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE

Fig 3: Checking L/R Pressure Switch Sense Circuit For Short To Voltage
Courtesy of CHRYSLER LLC
1. With the scan tool under TIPM, actuate the Transmission.
2. Measure the voltage of the (T50) L/R Pressure Signal circuit.
  Is the voltage above 0.5 of a volt?
  
  Yes
  - Repair the (T50) L/R Pressure Signal circuit for a short to voltage.
  - Perform the 42RLE TRANSMISSION VERIFICATION TEST. Refer to 42RLE TRANSMISSION VERIFICATION TEST .
  No
  - Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn
  - Perform the 42RLE TRANSMISSION VERIFICATION TEST. Refer to 42RLE TRANSMISSION VERIFICATION TEST .
CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set the 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 wiring and connectors while checking for shorted and open circuits.
4. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the 42RLE TRANSMISSION VERIFICATION TEST. Refer to 42RLE TRANSMISSION VERIFICATION TEST .
  No
  - Test Complete.