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Pinpoint Test A: Transmission Control Solenoids

WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to the TRANSMISSION VEHICLE HARNESS CONNECTOR  illustration within the TRANSMISSION CONNECTOR LAYOUTS  procedure.
NOTE: Refer to the TRANSMISSION LEADFRAME CONNECTOR  illustration within the TRANSMISSION CONNECTOR LAYOUTS  procedure.
NOTE: If the scan tool is unable to access the transmission PIDs, refer to ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) .
NOTE: Read and record all DTCs.
NOTE: Without a voltage signal return to the PCM, the Transmission Solenoid Power Control (TSPC) relay is commanded OFF. By using a fused jumper between a transmission solenoid control circuit and the signal return circuit, the TSPC relay circuit will supply power to the transmission solenoids when the ignition is cycled from OFF to ON. Do not use a solenoid control circuit that may be at fault, refer to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS  for a fault listing.
  1. A1 CHECK THE SOLENOID POWER CIRCUIT FOR VOLTAGE 
    • Ignition OFF.
    • Disconnect: Transmission C1575  .
    • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
    • NOTE: Do not use a solenoid control circuit that may be at fault. Failure to jump pin 5 to a known good solenoid control circuit can cause incorrect diagnostic results. For additional information, refer to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS  for a fault listing.

      Using the chart, connect a fused jumper between one of the 7 solenoid control circuit pins on transmission vehicle harness C1575  and C1575-5  .

      Transmission Vehicle Harness C1575 Solenoid Control Circuit
      C1575-9  Shift Solenoid A (SSA) CET05 (BU/GN)
      C1575-14  Shift Solenoid B (SSB) CET06 (GN/BN)
      C1575-13  Shift Solenoid C (SSC) CET07 (GY/OG)
      C1575-10  Shift Solenoid D (SSD) CET08 (BN/WH)
      C1575-8  Shift Solenoid E (SSE) CET18 (GY/YE)
      C1575-16  Line Pressure Control (LPC) solenoid CET09 (YE/VT)
      C1575-3  Torque Converter Clutch (TCC) solenoid CET10 (BU/GY)
    • Ignition ON.
    • Measure the voltage from the transmission vehicle harness C1575-7  circuit CET25 (BU/GN) harness side to ground.
      Fig 1: Measuring Transmission Vehicle Harness Voltage C1575-7 Circuit CET25 (BU/GN) To Ground
      G07475901Courtesy of FORD MOTOR CO.

    Is the voltage greater than 10 volts? 

    • Yes  : GO to  A4.
    • No  : GO to A2  .
  2. A2 CHECK THE SOLENOID POWER CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: PCM C175T  (3.7L Engine).
    • Disconnect: PCM C1381T  (5.0L and 6.2L Engines).
    • Disconnect: PCM C1551E  (3.5L Gasoline Turbocharged Direct Injection (GTDI) Engine).
    • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
    • Vehicle equipped with 3.7L engine, measure the resistance from the PCM C175T-50  to the transmission vehicle harness C1575-7  , circuit CET25 (BU/GN).
      Fig 2: Measuring Resistance PCM C175T-50 To Transmission Vehicle C1575-7, Circuit CET25 (BU/GN)
      G07475902Courtesy of FORD MOTOR CO.
    • Vehicle equipped with 5.0L or 6.2L engine, measure the resistance from the PCM C1381T-50  to the transmission vehicle harness C1575-7  , circuit CET25 (BU/GN).
      Fig 3: Measuring Resistance From PCM C1381T-50 To Transmission Vehicle Harness C1575-7, Circuit CET25 (BU/GN)
      G07475902Courtesy of FORD MOTOR CO.
    • Vehicle equipped with 3.5L engine, measure the resistance from the PCM C1551E-80  to the transmission vehicle harness C1575-7  , circuit CET25 (BU/GN).
      Fig 4: Measuring Resistance From PCM C1551E-80 To Transmission Vehicle Harness C1575-7, Circuit CET25 (BU/GN)
      G07962402Courtesy of FORD MOTOR CO.

    Is the resistance less than 5 ohms? 

    • Yes  : GO to A3  .
    • No  : REPAIR transmission vehicle harness circuit CET25 (BU/GN) for an open. CLEAR the DTC's. TEST the system for normal operation. If DTC P0657 returns, REPLACE the PCM. REFER to POWERTRAIN CONTROL MODULE (PCM) . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY . TEST the system for normal operation.
  3. A3 CHECK THE SOLENOID POWER CIRCUIT FOR A SHORT TO GROUND 
    • Vehicle equipped with 3.7L engine, measure the resistance from the PCM C175T-50  , circuit CET25 (BU/GN) of the transmission vehicle harness to ground.
      Fig 5: Measuring Resistance From PCM C175T-50, Circuit CET25 (BU/GN) Of Transmission Vehicle Harness To Ground
      G07482732Courtesy of FORD MOTOR CO.
    • Vehicle equipped with 5.0L or 6.2L engine, measure the resistance from the PCM C1381T-50  , circuit CET25 (BU/GN) of the transmission vehicle harness to ground.
      Fig 6: Measuring Resistance From PCM C1381T-50, Circuit CET25 (BU/GN) Of Transmission Vehicle Harness To Ground
      G07482732Courtesy of FORD MOTOR CO.
    • Vehicle equipped with 3.5L engine, measure the resistance from the PCM C1551E-80  , circuit CET25 (BU/GN) of the transmission vehicle harness to ground.
      Fig 7: Measuring Resistance From PCM C1551E-80, Circuit CET25 (BU/GN) Of Transmission Vehicle Harness To Ground
      G07962405Courtesy of FORD MOTOR CO.

    Is the resistance greater than 10, 000 ohms? 

    • Yes  : GO to A4  .
    • No  : REPAIR transmission vehicle harness circuit CET25 (BU/GN) for a short to ground. CLEAR the DTC's. TEST the system for normal operation. If DTC P0657 returns, REPLACE the PCM, REFER to POWERTRAIN CONTROL MODULE (PCM) . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY . TEST the system for moral operation.
  4. A4 CHECK SOLENOID CONTROL CIRCUITS FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: PCM C175T  (3.7L Engine).
    • Disconnect: PCM C1381T  (5.0L and 6.2L Engines).
    • Disconnect: PCM C1551E  (3.5L GTDI Engine).
    • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
    • Vehicles equipped with a 3.7L engine, measure the resistance of the solenoid control circuits using the following chart.
      PCM Circuit Transmission
      C175T-45  SSA  CET05 (BU/GN) C1575-9 
      C175T-43  SSB  CET06 (GN/BN) C1575-14 
      C175T-44  SSC  CET07 (GY/OG) C1575-13 
      C175T-10  SSD  CET08 (BN/WH) C1575-10 
      C175T-11  SSE  CET18 (GY/YE) C1575-8 
      C175T-34  LPC  solenoid CET09 (YE/VT) C1575-16 
      C175T-46  TCC  solenoid CET10 (BU/GY) C1575-3 
    • Vehicles equipped with a 5.0L or 6.2L engine, measure the resistance of the solenoid control circuits using the following chart.
      PCM Circuit Transmission
      C1381T-43  SSA  CET05 (BU/GN) C1575-9 
      C1381T-44  SSB  CET06 (GN/BN) C1575-14 
      C1381T-45  SSC  CET07 (GY/OG) C1575-13 
      C1381T-10  SSD  CET08 (BN/WH) C1575-10 
      C1381T-11  SSE  CET18 (GY/YE) C1575-8 
      C1381T-34  LPC  CET09 (YE/VT) C1575-16 
      C1381T-46  TCC  CET10 (BU/GY) C1575-3 
    • Vehicles equipped with a 3.5L engine, measure the resistance of the solenoid control circuits using the following chart.
      PCM Circuit Transmission
      C1551E-60  SSA  CET05 (BU/GN) C1575-9 
      C1551E-45  SSB  CET06 (GN/BN) C1575-14 
      C1551E-75  SSC  CET07 (GY/OG) C1575-13 
      C1551E-30  SSD  CET08 (BN/WH) C1575-10 
      C1551E-2  SSE  CET16 (WH/BU) C1575-8 
      C1551E-59  LPC  solenoid CET09 (YE/VT) C1575-16 
      C1551E-44  TCC  solenoid CET10 (BU/GY) C1575-3 

    Is the resistance less than 5 ohms on each circuit? 

    • Yes  : GO to A5  .
    • No  : REPAIR the transmission vehicle harness circuit which measured greater than 5 ohms. CLEAR the DTCs. TEST the system for normal operation.
  5. A5 CHECK SOLENOID CONTROL CIRCUITS FOR A SHORT TO GROUND 
    • Measure the resistance between the transmission vehicle harness C1575  , harness side and ground using the following chart.
      Transmission Control Circuit Ground
      C1575-7  Solenoid Power CET25 (BU/GN) Ground
      C1575-9  SSA  CET05 (BU/GN) Ground
      C1575-14  SSB  CET06 (GN/BN) Ground
      C1575-13  SSC  CET07 (GY/OG) Ground
      C1575-10  SSD  CET08 (BN/WH) Ground
      C1575-8  SSE  CET18 (GY/YE) (CET16 (WH/BU) 3.5L only) Ground
      C1575-16  LPC  solenoid CET09 (YE/VT) Ground
      C1575-3  TCC  solenoid CET10 (BU/GY) Ground

    Is the resistance greater than 10, 000 ohms? 

    • Yes  : GO to A6  .
    • No  : REPAIR the transmission vehicle harness circuit which measured less than 10, 000 ohms. CLEAR the DTCs. TEST the system for normal operation.
  6. A6 CHECK SOLENOID CONTROL CIRCUITS FOR A SHORT TO POWER 
    • Connect: PCM C175T  (3.7L Engine).
    • Connect: PCM C1381T  (5.0L and 6.2L Engines).
    • Connect: PCM C1551E  (3.5L GTDI Engine).
    • Ignition ON.
    • Measure for voltage between the transmission vehicle harness C1575  , harness side and ground using the following chart.
      Transmission Control Circuit Ground
      C1575-9  SSA  CET05 (BU/GN) Ground
      C1575-14  SSB  CET06 (GN/BN) Ground
      C1575-13  SSC  CET07 (GY/OG) Ground
      C1575-10  SSD  CET08 (BN/WH) Ground
      C1575-8  SSE  CET18 (GY/YE) (CET16 (WH/BU) 3.5L only) Ground
      C1575-16  LPC  solenoid CET09 (YE/VT) Ground
      C1575-3  TCC  solenoid CET10 (BU/GY) Ground

    Is voltage greater that 3 volts? 

    • Yes  : REPAIR the transmission vehicle harness circuit shorted to power. CLEAR the DTCs. TEST the system for normal operation.
    • No  : GO to A7  .
  7. A7 CHECK COMPONENT RESISTANCE 
    • Measure resistance of the solenoid between the transmission molded leadframe C1575  , component side using the following chart.
      Transmission Solenoid Transmission Ohms
      C1575-7  SSA  C1575-9  4.8 to 5.6
      C1575-7  SSB  C1575-14  4.8 to 5.6
      C1575-7  SSC  C1575-13  4.8 to 5.6
      C1575-7  SSD  C1575-10  4.8 to 5.6
      C1575-7  SSE  C1575-8  17.5 to 18.6
      C1575-7  LPC  solenoid C1575-16  4.8 to 5.6
      C1575-7  TCC  solenoid C1575-3  4.8 to 5.6

    Is the resistance within specifications? 

    • Yes  : REFER to MAIN CONTROL  to inspect for stuck valves or debris. If no problems are found, INSTALL suspected solenoid. REFER to SHIFT SOLENOIDS (SS) . CLEAR the DTCs. TEST the system for normal operation.
    • No  : GO to A8  .
  8. A8 CHECK SOLENOID RESISTANCE 
    • Remove the molded leadframe from the main control. Refer to SHIFT SOLENOIDS (SS) . Inspect for metallic contamination and clean the solenoid and molded leadframe terminals.
    • Measure and record the resistance of the suspected solenoid. For solenoid location, refer to SHIFT SOLENOIDS (SS) . Compare the recorded value with the chart below.
      Solenoid Ohms
      SSA  4.8 to 5.6
      SSB  4.8 to 5.6
      SSC  4.8 to 5.6
      SSD  4.8 to 5.6
      SSE  17.5 to 18.6
      LPC  solenoid 4.8 to 5.6
      TCC  solenoid 4.8 to 5.6

    Is the solenoid resistance within specification? 

    • Yes  : INSTALL a new molded leadframe, REFER to SHIFT SOLENOIDS (SS) . CLEAR the DTCs. TEST the system for normal operation.
    • No  : REPLACE the suspected solenoid which failed the resistance check. REFER to SHIFT SOLENOIDS (SS) . CLEAR the transmission adaptive tables and perform the adaptive drive cycle. REFER to SHIFT POINT ROAD TEST . TEST the system for normal operation.
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