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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 948TE/9HP48 - DTCS P0887-00 To P1D90-00 >> DTC Troubleshooting >> P0933-00-Hydraulic Pressure Sensor Range-Performance >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, read all DTCs and record on the repair order.
    2. Record the Event Data and Environmental Data.
    3. With the scan tool, erase DTCs.
    4. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    5. With the scan tool, read TCM DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

  2. CHECK FOR OTHER TCM DTCS 
    NOTE:

    Diagnose and repair all other TCM DTCs before diagnosing P0933.

    1. Refer to the recorded DTCs.

      Are any other TCM DTCs set?

      Yes 

      No 

      • Go To  3
  3. CHECK THE (T376) 5-VOLT CIRCUIT FOR OPEN/HIGH RESISTANCE 
    1. Turn the ignition off.
    2. Disconnect the TCM harness connector.
    3. Disconnect the Transmission Assembly harness connector.
    4. Measure the resistance of the (T376) 5-Volt Supply circuit between the TCM harness connector and the Transmission Assembly harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  4

      No 

  4. CHECK THE (T377) OIL PRESSURE SIGNAL CIRCUIT FOR OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (T377) Oil Pressure Signal circuit between the TCM harness connector and the Transmission Assembly harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      Go To  5

      No 

  5. CHECK THE (T917) SENSOR GROUND CIRCUIT FOR OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (T917) Sensor Ground circuit between the TCM harness connector and the Transmission Assembly harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      Go To  6

      No 

  6. CHECK (T377) OIL PRESSURE SIGNAL CIRCUIT FOR A SHORT TO GROUND OR ANOTHER CIRCUIT 
    1. Check for continuity between ground and the (T377) Oil Pressure Signal circuit at the TCM harness connector.
    2. Check for continuity between the (T377) Oil Pressure Signal circuit and all other circuits at the TCM harness connector.

      Is there continuity between the (T377) Oil Pressure Signal circuit and ground or any other circuit?

      Yes 

      No 

      Go To  7

  7. CHECK INTERNAL HARNESS AND CONNECTIONS 
    1. Remove the Transmission Oil Pan.
    2. Check the Transmission internal wiring harness and Oil Pressure Sensor electrical connections for open circuits, shorts, and loose connections.

      Were any problems found?

      Yes 

      No 

      Go To  8

  8. CHECK OIL PRESSURE SENSOR RESISTANCE 
    NOTE:

    The Oil Pressure Sensor must be at room temperature to perform the next test.

    1. Measure the resistance of the Oil Pressure Sensor between terminal 15 and terminal 16 at the Transmission side of the Transmission Assembly harness connector.

      Is the resistance between 4.6 and 5.0 Ohms?

      Yes 

      • Go To  9

      No 

  9. CHECK THE TRANSMISSION FOR MECHANICAL PROBLEMS 
    1. Check the Transmission for mechanical problems. Refer to DIAGNOSIS AND TESTING .

      Did the Transmission have any mechanical problems?

      Yes 

      No 

      • Go To  10
  10. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect all TCM harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    5. Reconnect all TCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. With the scan tool, erase DTCs.
    9. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    10. With the scan tool, read TCM DTCs.

      Did the DTC return?

      Yes 

      NOTE:

      If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU. Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) Miscellaneous Functions menu.

      • Using the schematics as a guide, check the Transmission Control Module (TCM) terminals and connectors for corrosion, damage or pushed out terminals. Pay particular attention to the power and ground circuits. If no problems are found, replace the TCM and perform programming and PROXI Configuration Alignment procedures. Refer to MODULE, TRANSMISSION CONTROL (TCM), REMOVAL .
      • Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST - 948TE 9HP48 .

      No 

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