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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 226 (Automatic Transmission - 6 Speed) >> Diagnosis And Testing >> Pinpoint Tests - Non OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test A: Shift Solenoids

Pinpoint Test A: Shift Solenoids

WARNING: This page is about a different car, the 2005 Mercury Montego and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to the Transaxle Vehicle Harness Connector illustration preceding these pinpoint tests.
  1. A1 ELECTRONIC DIAGNOSTICS 
    • Check to make sure the transmission harness connector is fully seated, pins are fully engaged in the connector and in good condition before proceeding.
    • Key in OFF position.
    • Connect the scan tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: Retrieve DTC Codes.
    • Are their any transmission DTCs fault present? 
    • Yes  : For shift solenoids SSA and SSB, GO to A2. For shift solenoids PCA, SSC, SSD, SSE, SSF and TCC, GO to  A4.
    • No  : CLEAR all DTCs. ROAD TEST to verify if concern is still present. Concern could be intermittent. If concern is still present or reappears go to the appropriate pinpoint test steps: For shift solenoids SSA and SSB, GO to. For shift solenoids PCA, SSC, SSD, SSE, SSF and TCC, GO to A4.
  2. A2 CHECK RESISTANCE OF THE ON/OFF SOLENOID CIRCUIT 
    • Key in OFF position.
    • Remove the transmission control module (TCM).
    • Measure the resistance at the transaxle bulkhead electrical connector between pin 2 and ground for SSB.
      Fig 1: Measuring Resistance At Transaxle Bulkhead Electrical Connector Between Pin 2 And Ground For SSB
      G03991649Courtesy of FORD MOTOR CO.
    • Measure the resistance at the transaxle bulkhead electrical connector between pin 5 and ground for SSA.
      Fig 2: Measuring Resistance At Transaxle Bulkhead Electrical Connector Between Pin 5 And Ground For SSA
      G03991650Courtesy of FORD MOTOR CO.
    • Is the resistance between 11-15 ohms? 
    • Yes  : Install a new transmission control module (TCM) and re-flash to the latest level calibration. CLEAR all DTCs. ROAD TEST to verify concern is not present. Concern could be intermittent. If concern is still present or reappears, GO to A3.
    • No  : GO to A3.
  3. A3 CHECK RESISTANCE OF THE ON/OFF SOLENOIDS 
    • Remove the transaxle side cover.
    • Remove the wiring connector from the effected solenoid (SSA or SSB).
    • Measure the resistance between solenoid pin 1 and ground of the affected solenoid.
      Fig 3: Measuring Resistance Between Solenoid Pin 1 And Ground Of Affected Solenoid
      G03991651Courtesy of FORD MOTOR CO.
    • Is each solenoid resistance between 11-15 ohms? 
    • Yes  : INSTALL a new internal wire harness or repair effected circuit.
    • No  : INSTALL a new main control.
  4. A4 CHECK LINEAR SOLENOID SHORT TO GROUND 
    • Key in OFF position.
    • Remove the transmission control module (TCM).
    • Measure the resistance at transaxle bulkhead electrical connector between pins 1, 3, 4, 9, 10, 11, 14, 16, 17, 18, 21, 22 and ground.
      Fig 4: Measuring Resistance At Transaxle Bulkhead Electrical Connector Between Pins And Ground
      G03991652Courtesy of FORD MOTOR CO.
    • Is each resistance greater than 10,000 ohms? 
    • Yes  : GO to A5.
    • No  : GO to  A6.
  5. A5 CHECK RESISTANCE OF THE LINEAR SOLENOID(S) 
    • Inspect both sides of the transmission control module for damaged or pushed out pins, corrosion or damaged seals.
    • For the TCC solenoid, measure the resistance between pin 4 and pin 9 at the transaxle.
      Fig 5: Inspecting Both Sides Of Transmission Control Module
      G03991653Courtesy of FORD MOTOR CO.
    • For the PCA solenoid, measure the resistance between pin 3 and pin 1 at the transaxle.
      Fig 6: Measuring Resistance Between Pin 3 And Pin 1 At Transaxle
      G03991654Courtesy of FORD MOTOR CO.
    • For the SSF solenoid, measure the resistance between pin 21 and pin 16 at the transaxle.
      Fig 7: Measuring Resistance Between Pin 21 And Pin 16 At Transaxle
      G03991655Courtesy of FORD MOTOR CO.
    • For the SSC solenoid, measure the resistance between pin 11 and pin 10 at the transaxle.
      Fig 8: Measuring Resistance Between Pin 11 And Pin 10 At Transaxle
      G03991656Courtesy of FORD MOTOR CO.
    • For the SSD solenoid, measure the resistance between pin 17 and pin 18 at the transaxle.
      Fig 9: Measuring Resistance Between Pin 17 And Pin 18 At Transaxle
      G03991657Courtesy of FORD MOTOR CO.
    • For the SSE solenoid, measure the resistance between pin 14 and pin 22 at the transaxle.
      Fig 10: Measuring Resistance Between Pin 14 And Pin 22 At Transaxle
      G03991658Courtesy of FORD MOTOR CO.
    • Is the resistance between 5.0 - 5.6 ohms? 
    • Yes  : Install a new transmission control module (TCM) and re-flash to the latest level calibration. CLEAR all DTCs. ROAD TEST to verify concern is not present. Concern could be intermittent. If concern is still present or reappears, GO to A6.
    • No  : GO to A6.
  6. A6 CHECK CONTINUITY OF THE INTERNAL HARNESS 
    • Remove the transaxle side cover.
    • Remove the wiring connector from the effected solenoid(s) (PCA, SSC, SSD, SSE, SSF and TCC).
    • Measure the resistance between the bulkhead connector and the affected solenoid electrical connector.
    • Is each solenoid resistance less than 5 ohms? 
    • Yes  : INSTALL a new main control.
    • No  : INSTALL a new internal wire harness or repair effected circuit.
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