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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1807 (Automatic Transmission - 4R70E/4R75E - F150 & Mark LT) >> Diagnostic Tests >> Pinpoint Tests - OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test A: Shift And Torque Converter Clutch Solenoids

Pinpoint Test A: Shift And Torque Converter Clutch Solenoids

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Read and record all DTCs. All digital transmission range (TR) sensor and vehicle speed sensor (VSS) DTCs must be repaired before entering output state control (OSC).
NOTE: Refer to the Transmission Internal Harness illustration Transmission Connector Layouts  in this article.
NOTE: Refer to the Transmission Vehicle Harness Connector illustration Transmission Connector Layouts  in this article.
  1. A1 ELECTRONIC DIAGNOSTICS 
    • Select PARK.
    • Key in OFF position.
    • Check to make sure the transmission harness connector is fully seated, pins are fully engaged in connector and in good condition before proceeding.
    • Connect the diagnostic tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Diagnostic Data Link
    • Enter the following diagnostic mode on the diagnostic tool: PCM
    • Enter the following diagnostic mode on the diagnostic tool: Active Command Modes
    • Enter the following diagnostic mode on the diagnostic tool: Output State Control (OSC)
    • Enter the following diagnostic mode on the diagnostic tool: Trans-Bench Mode
    • Does vehicle enter Trans-Bench Mode? 
    1. YES  : Go to  A2.
    2. NO  : REPEAT procedure to enter Trans-Bench Mode. If vehicle did not enter Trans-Bench Mode, Refer to the INTRODUCTION - GASOLINE ENGINES article for diagnosis of PCM.
  2. A2 WIGGLE TEST 
    • Select PIDs to be monitored.
      PID Command PID Actual
      SSA SS1F
      SSB SS2F
      TCC TCCF
    • Select "ON" to turn suspect solenoid on.
    • Press "SEND".
    • Wiggle all wiring and connectors to the transmission. Monitor the Solenoid State for changes.
    • Select "OFF" to turn solenoid off.
    • Press "SEND".
    • Does the suspect solenoid(s) fault state change? 
    1. YES  : REPAIR open or short in the vehicle harness or connector.
    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 (GR_CM OR TCC) 
    • Carry out OSC Trans-Drive Mode.
    • Select GR_CM for Shift Solenoids or follow procedures for GR_CM as listed.
    • Select TCC for Torque Converter Clutch Solenoid. Follow procedures of TCC in Drive Mode as listed.
    • 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  in this article to diagnose shift or torque converter concern.
    2. NO  : Go to  A5.
  5. A5 CHECK FOR BATTERY VOLTAGE 
    • Remove transmission fluid pan.
    • Visually inspect the lead frame and connectors for damage.
    • Key in ON position.
    • Measure the voltage with the positive lead to VPWR solenoid pin and negative lead to a good ground.
      • Fig 1: Checking For Battery Voltage
      GF0003434Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A6.
    2. NO  : CHECK for open or short circuit in harness, or solenoid.
  6. A6 ELECTRICAL SIGNAL CHECK 
    • Measure the voltage with the positive lead connected to VPWR solenoid pin and the negative lead to the signal pin of the appropriate solenoid.
      Fig 2: Checking Electrical Signal
      GF0003435Courtesy of FORD MOTOR CO.
    • Enter the following diagnostic mode on the diagnostic tool: Trans-Bench Mode
    • Select Parameter SSA, SSB or TCC.
    • Select "ON".
    • Press "SEND".
    • Turn the solenoids ON and OFF, while monitoring the voltage, solenoid state on the scan tool (ON and OFF), and listen for the solenoid to activate (click).
    • Measure the voltage with the positive lead to VPWR pin and the negative lead to the TCC pin.
      • Fig 3: Measuring Voltage With Positive Lead To VPWR Pin And Negative Lead To TCC Pin
      GF0003436Courtesy of FORD MOTOR CO.
    • Enter the following diagnostic mode on the diagnostic tool: Select Parameter TCC
    • Select "ON".
    • Press "SEND".
    • Turn the solenoid ON and OFF, while monitoring the voltage, solenoid state on the scan tool (ON and OFF), and listen for the solenoid to activate (click).
    • Select "OFF", press "SEND".
    • Does the voltage and solenoid state change? 
    1. YES  : Go to  A7.
    2. NO  : CHECK for open or short circuit in harness, solenoid or a PCM concern.
  7. A7 CHECK MOLDED LEAD FRAME CONNECTIONS 
    • Key in OFF position.
    • Disconnect: Molded Lead Frame
    • Inspect the molded lead frame for damage.
    • Using special tool, check all molded lead frame connector pins.
      • Fig 4: Checking All Molded Lead Frame Connector Pins
      GF0003437Courtesy of FORD MOTOR CO.
    • Does the special tool go easily through the molded lead frame connector pins? 
    1. YES  : INSTALL a new molded lead frame. Go to  A8 .
    2. NO  : Go to  A8.
  8. A8 CHECK SOLENOID RESISTANCE AT SOLENOID 
    • Measure the resistance of the SSA and SSB solenoids.
      • Fig 5: Measuring Resistance Of SSA And SSB Solenoids
      GF0003438Courtesy of FORD MOTOR CO.
    • Measure the resistance of the TCC solenoid.
      Solenoid Resistance (ohms)
      SSA 20-30
      SSB 20-30
      TCC 10-16
      • Fig 6: Measuring Resistance Of TCC Solenoid
      GF0003439Courtesy of FORD MOTOR CO.
    • Are the resistances correct? 
    1. YES  : Go to  A9.
    2. NO  : INSTALL a new solenoid.
  9. A9 CHECK SOLENOID FOR SHORT TO GROUND 
    • Measure the resistance between each of the TCC solenoid pins and ground.
      • Fig 7: Measuring Resistance Between Each Of TCC Solenoid Pins And Ground
      GF0003440Courtesy of FORD MOTOR CO.
    • Measure the resistance between the SSA, SSB and vehicle power pins and ground.
      • Fig 8: Measuring Resistance Between SSA, SSB And Vehicle Power Pins And Ground
      GF0003441Courtesy of FORD MOTOR CO.
    • Is each resistance greater than 10,000 ohms? 
    1. YES  : REFER to Diagnosis By Symptom  in this article for diagnosis of shift or torque converter concerns.
    2. NO  : INSTALL a new solenoid.
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