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Pinpoint Test A: Transaxle Control Solenoids

WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to the Transaxle Internal Harness Diagram illustration Transaxle Connector Layouts .
NOTE: Refer to the Transaxle Vehicle Harness Connector illustration Transaxle Connector Layouts .
  1. A1 ELECTRONIC DIAGNOSTICS 
    • Check to make sure the transaxle harness connector is fully seated, terminals are engaged in connector and in good condition before proceeding.
    • Connect the diagnostic tool.
    • Carry out the KOEO Test until continuous DTCs have been displayed.
    • Enter the Output Test Mode (OTM).
    • Select the mode ALL ON. Push START to turn outputs ON. Push STOP to turn outputs OFF.
    • Does vehicle enter OTM? 
    1. YES  : Go to  A2 .
    2. NO  : PRESS START. If vehicle does not enter OTM, REFER to the Introduction - Gasoline Engines .
  2. A2 CHECK THE SOLENOID CIRCUIT FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Transaxle Vehicle Harness Connector C168
    • Use a mirror to inspect both ends of the connector for damage or pushed-out pins, corrosion, loose wires and missing or damaged seals.
    • Disconnect: PCM Transaxle Electrical Connector C175t
    • Use a mirror to inspect both ends of the connector for damage or pushed out pins, corrosion, loose wires and missing or damaged seals.
      • Fig 1: Using A Mirror To Inspect Both Ends Of Connector For Damage
      GF0031602Courtesy of FORD MOTOR CO.
    • Measure the resistance of the suspect solenoid circuit between the PCM transaxle electrical connector C175t and transaxle harness connector C168.
      Shift Solenoid Transaxle Connector Pin PCM Connector Pin
      SSA CET05 (BU/GN) 13 39
      SSB CET06 (GN/BN) 16 27
      SSC CET07 (GY/OG) 17 40
      SSD CET08 (BN/WH) 12 28
      SSE CET18 (GY/YE) 1 38
      LPC CET09 (YE/VT) 18 35
      TCC CET10 (BU/GY) 14 29
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  A3.
    2. NO  : REPAIR the circuit(s) for an open. RECONNECT all components. TEST the system for normal operation.
  3. A3 CHECK THE SOLENOID CIRCUIT FOR A SHORT TO GROUND 
      Fig 2: Measuring Resistance Between Transaxle Electrical Connector C168 & Ground
      GF0031603Courtesy of FORD MOTOR CO.
    • Measure the resistance between the transaxle electrical connector C168 and ground.
      Shift Solenoid Transaxle Connector Pin
      SSA CET05 (BU/GN) 13
      SSB CET06 (GN/BN) 16
      SSC CET07 (GY/OG) 17
      SSD CET08 (BN/WH) 12
      SSE CET18 (GY/YE) 1
      LPC CET09 (YE/VT) 18
      TCC CET10 (BU/GY) 14
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  A4.
    2. NO  : REPAIR the circuit(s) for a short to ground. RECONNECT all components. TEST the system for normal operation.
  4. A4 CHECK THE SOLENOID CIRCUIT FOR A SHORT TO POWER 
      Fig 3: Measuring Voltage Between Transaxle Vehicle Harness Electrical Connector C168 & Ground
      GF0031604Courtesy of FORD MOTOR CO.
    • Measure the voltage between the transaxle vehicle harness electrical connector C168 and ground.
      Shift Solenoid Transaxle Connector Pin
      SSA CET05 (BU/GN) 13
      SSB CET06 (GN/BN) 16
      SSC CET07 (GY/OG) 17
      SSD CET08 (BN/WH) 12
      SSE CET18 (GY/YE) 1
      LPC CET09 (YE/VT) 18
      TCC CET10 (BU/GY) 14
    • Is any voltage present? 
    1. YES  : REPAIR the circuit(s) for a short to power. RECONNECT all components. TEST the system for normal operation.
    2. NO  : Go to  A5.
  5. A5 CHECK THE RESISTANCE OF THE SOLENOID FIELD CIRCUIT 
      Fig 4: Measuring Resistance Between Transaxle Solenoid Body Electrical Connector C168-15 & Suspect Solenoid Pin
      GF0031605Courtesy of FORD MOTOR CO.
    • Measure the resistance between the transaxle solenoid body electrical connector C168-15, component side and the suspect solenoid pin, component side and compare the value to the specifications in the table below.
      Shift Solenoid Transaxle Connector Pin
      SSA CET05 (BU/GN) 13
      SSB CET06 (GN/BN) 16
      SSC CET07 (GY/OG) 17
      SSD CET08 (BN/WH) 12
      SSE CET18 (GY/YE) 1
      LPC CET09 (YE/VT) 18
      TCC CET10 (BU/GY) 14
      SOLENOID RESISTANCE VALUES: SSA, SSB, SSC, SSD, TCC AND LPC

      Temperature Resistance (ohms)
      °C °F
      -20 to -10 -4 to 14 3.24 to 5.13
      -10 to 0 14 to 32 3.43 to 5.32
      0 to 10 32 to 50 3.62 to 5.51
      10 to 20 50 to 68 3.81 to 5.70
      20 to 30 68 to 86 4.00 to 5.89
      30 to 40 86 to 104 4.19 to 6.08
      40 to 50 104 to 122 4.38 to 6.27
      50 to 60 122 to 140 4.57 to 6.46
      60 to 70 140 to 158 4.76 to 6.65
      70 to 80 158 to 176 4.95 to 6.83
      80 to 90 176 to 194 5.13 to 7.02
      90 to 100 194 to 212 5.32 to 7.21
      SOLENOID RESISTANCE VALUES: SSE (ON/OFF)

      Temperature Resistance (ohms)
      °C °F
      -20 to -10 14 to 14 15.45 to 24.35
      -10 to 0 14 to 32 16.35 to 25.25
      0 to 10 32 to 50 17.25 to 26.15
      10 to 20 50 to 68 18.15 to 27.05
      20 to 30 68 to 86 19.05 to 27.95
      30 to 40 86 to 104 19.95 to 28.85
      40 to 50 104 to 122 20.85 to 29.75
      50 to 60 122 to 140 21.75 to 30.65
      60 to 70 140 to 158 22.65 to 31.54
      70 to 80 158 to 176 23.54 to 32.44
      80 to 90 176 to 194 24.44 to 33.34
      90 to 100 194 to 212 25.34 to 34.24
    • Is the resistance within specifications? 
    1. YES  : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . RECONNECT all components. TEST the system for normal operation.
    2. NO  : REMOVE the main control cover. REFER to Main Control Cover . INSPECT the solenoid body for foreign material such as metal shavings on the exposed metal contacts or other components. CLEAR the solenoid body and RECHECK the resistance values. If the resistance values are still out of specification, INSTALL a new solenoid body assembly. REFER to Solenoid Body Assembly . RECONNECT all components. TEST the system for normal operation.
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