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Home >> Ford >> 2009 >> Taurus X SEL, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1314 (Automatic Transmission) >> Diagnostic Tests >> Pinpoint Tests - OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test A: Shift And Torque Converter Clutch (TCC) Solenoids

Pinpoint Test A: Shift And Torque Converter Clutch (TCC) Solenoids

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to Transmission Connector Layouts .
NOTE: Read and record all DTCs. All digital transmission range (TR) sensor and vehicle speed (VSS) DTCs must be repaired before entering output state control (OSC).
  1. A1 ELECTRONIC DIAGNOSTICS 
    • Select PARK.
    • Key in OFF position.
    • Check to make sure the transmission harness connector is fully seated, terminals are fully engaged in connector and in good condition before proceeding.
    • Connect the diagnostic tool.
    • Key in ON position.
    • Access the transmission PIDs.
    • Is the scan tool able to access the transmission PIDs? 
    1. YES  : Go to  A2.
    2. NO  : REPEAT procedure to access the transmission PIDs. If the scan tool did not access the transmission PIDs, REFER to the Introduction - Gasoline Engines for diagnosis of PCM.
  2. A2 WIGGLE TEST 
    • Select PIDs to be monitored.
      • SSA
      • SSB
      • SSC
      • SSD
      • TCC
    • Select ON to turn suspect solenoid(s) ON.
    • Wiggle all wiring and connectors to the transmission. Monitor the solenoid state for changes.
    • Select OFF to turn solenoid(s) OFF.
    • Repeat steps for each solenoid.
    • Does the suspect solenoid(s) state change? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : Go to  A3.
  3. A3 SOLENOID FUNCTIONAL CHECK 
    • Monitor each solenoid state.
    • Turn each solenoid ON and OFF.
    • Does the solenoid turn ON and OFF when commanded and can solenoid activation be heard? 
    1. YES  : Go to  A4.
    2. NO  : Go to  A5.
  4. A4 OSC TRANS-DRIVE MODE (GEAR OR TCC) 
    • Select GEAR for shift solenoids.
    • Select TCC for torque converter clutch solenoid.
    • Does the transmission upshift and downshift or torque converter engage/disengage when commanded? 
    1. YES  : CLEAR all DTCs. ROAD TEST to verify if concern is still present. If concern is still present, REFER to Diagnosis By Symptom  to diagnose shift or torque converter concern.
    2. NO  : Go to  A5.
  5. A5 CHECK CIRCUIT 1862 (VT/WH) FOR BATTERY VOLTAGE 
    • Disconnect: Transmission Vehicle Harness Connector C199
    • Visually inspect all wires and connectors for damage.
    • Key in ON position.
      • Fig 1: Checking Circuit 1862 (VT/WH) For Battery Voltage
      GF0015419Courtesy of FORD MOTOR CO.
    • Measure the voltage at C199-3, circuit 1862 (VT/WH) harness side.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A6.
    2. NO  : REPAIR the circuit. TEST for normal operation.
  6. A6 ELECTRICAL SIGNAL CHECK 
      Fig 2: Connecting Positive Lead To Pin 3 And Connecting Negative Lead To Pin 5, 6, 14, 15 And 16
      GF0015420Courtesy of FORD MOTOR CO.
    • Leave positive lead connected to C199-3, circuit 1862 (VT/WH) and connect negative lead to C199 pins 5, 6, 14, 15 and 16.
    • Select SSA, SSB, SSC, SSD or TCC.
    • Measure the voltage while cycling the solenoids ON and OFF.
    • Does the voltage change? 
    1. YES  : Go to  A7.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  7. A7 CHECK SOLENOID RESISTANCE AT SOLENOID 
      Fig 3: Measuring Resistance Between Pin 3 And Pin 5, 6, 14, 15 And 16 Solenoid Side
      GF0015421Courtesy of FORD MOTOR CO.
    • Measure the resistance between C199-3 and pins 5, 6, 14, 15 and 16 solenoid side.
      Solenoid Resistance (ohms)
      SSA 16-45
      SSB 16-45
      SSC 16-45
      SSD 16-45
      TCC 9-16
    • Is the resistance within specification? 
    1. YES  : Go to  A8.
    2. NO  : INSTALL a new solenoid body assembly. TEST the system for normal operation.
  8. A8 CHECK SOLENOID FOR SHORT TO GROUND 
      Fig 4: Measuring Resistance Between Pin 3 And Pin 5, 6, 14, 15 And 16 Solenoid Side And Ground
      GF0015422Courtesy of FORD MOTOR CO.
    • Measure the resistance between C199-3 and pins 5, 6, 14, 15 and 16 solenoid side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new solenoid body assembly.
    2. NO  : REFER to Diagnosis By Symptom  for diagnosis of shift or torque converter concerns.
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