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Home >> Ford >> 2005 >> Escape Hybrid, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Automatic Transmission - Cd4E) >> 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 variant/trim than selected.
NOTE: Refer to Figure preceding these pinpoint tests.
  1. A1 ELECTRONIC DIAGNOSTICS 
    • Key in OFF position.
    • Make sure the transaxle vehicle harness connector is fully seated, terminals are fully engaged in connector and in good condition before proceeding.
    • Connect the scan tool.
    • Key in ON position.
    • Carry out KOEO Test until continuous DTCs have been displayed.
    • Enter Output Test Mode (OTM). Refer to ON-BOARD DIAGNOSTICS .
    • Select the mode ALL ON. Push START to turn outputs on. Push STOP to turn outputs off.
    • Does the vehicle enter OTM? 
    1. Yes  : REMAIN in OTM. GO to A2.
    2. No  : PRESS START. If vehicle does not enter OTM, refer to INTRODUCTION - GASOLINE article for Escape (gasoline) and Mariner or INTRODUCTION- HYBRID ESCAPE article for Escape (Hybrid).
  2. A2 CHECK ELECTRICAL SIGNAL OPERATION 
    • Key in OFF position.
    • Disconnect: Transaxle Connector.
    • Use a mirror to inspect both ends of the transaxle connector for damaged or pushed-out pins, corrosion, loose wires and missing or damaged seals.
    • Key in ON position.
    • Measure the voltage between pin 5 and solenoid circuit pins 4 and 6 at the transaxle vehicle harness connector.
      Fig 1: Measuring Voltage At Transaxle Vehicle Harness Connector
      G03900545Courtesy of FORD MOTOR CO.
    • While observing the VOM, press START and STOP to cycle the solenoid output on and off.
    • Does the suspected solenoid output voltage change at least 0.5 volt? 
    1. Yes  : GO to  A5.
    2. No  : GO to A3.
  3. A3 CHECK CONTINUITY OF SOLENOID SIGNAL AND VPWR HARNESS CIRCUITS 
    • Key in OFF position.
    • Disconnect: Transaxle Connector.
    • Disconnect: PCM.
    • Inspect for damaged or pushed-out pins, corrosion or loose wires.
    • Measure the resistance between the PCM connector pin T43 and the transaxle vehicle harness connector pin 6.
      Fig 2: Measuring Resistance Between PCM And Transaxle Vehicle Harness Connector
      G03900546Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM connector pin T42 and the transaxle vehicle harness connector pin 4.
      Fig 3: Measuring Resistance Between PCM And Transaxle Vehicle Harness Connector
      G03900547Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM connector pins C35 and C36 and the transaxle vehicle harness connector pin 5.
      Fig 4: Measuring Resistance Between PCM And Transaxle Vehicle Harness Connector
      G03900548Courtesy of FORD MOTOR CO.
    • Is each resistance less than 5 ohms? 
    1. Yes  : GO to A4.
    2. No  : REPAIR open circuit(s). RECONNECT all components. RERUN Quick Test.
  4. A4 CHECK SOLENOID HARNESS FOR SHORT TO POWER AND GROUND 
    • Measure the resistance between the PCM connector pin T43 and the PCM connector pins C35 and C36.
      Fig 5: Measuring Resistance Between PCM Pins
      G03900549Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM connector pin T42 and the PCM connector pins C35 and C36.
      Fig 6: Measuring Resistance Between PCM Pins
      G03900550Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM connector pin T43 and the PCM connector pins C47, C48, C49 and chassis ground.
      Fig 7: Measuring Resistance Between PCM And Ground
      G03900551Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM connector pin T43 and the PCM connector pin T41 and chassis ground.
      Fig 8: Measuring Resistance Between PCM and Ground
      G03900552Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM connector pin T42 and the PCM connector pins C47, C48, C49 and chassis ground.
      Fig 9: Measuring Resistance Between PCM and Ground
      G03900553Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM connector pin T42 and the PCM connector pin T41 and chassis ground.
      Fig 10: Measuring Resistance Between PCM and Ground
      G03900554Courtesy of FORD MOTOR CO.
    • Is each resistance greater than 10,000 ohms? 
    1. Yes  : GO to A5.
    2. No  : REPAIR short circuit(s). RECONNECT all components. RERUN Quick Test.
  5. A5 TRANSAXLE FUNCTIONAL TEST 
    CAUTION: Do not pry on the connector. This will damage the connector and can result in a transaxle concern. Press button and pull up on the transaxle vehicle harness connector.
    NOTE: LED will turn GREEN when solenoid activates and turn OFF when deactivated. LED will turn RED if an activated solenoid/harness is shorted to B+. LED will remain OFF if an activated solenoid/harness is shorted to ground or no continuity (open circuit).
    • Disconnect: Transaxle Harness.
    • Connect: Transmission Tester.
    • Carry out the Solenoid Function Tests as outlined in the Transmission Tester Manual.
    • Do the solenoids (LED) activate (LED green)? 
    1. Yes  : GO to A6.
    2. No  : GO to  A7.
  6. A6 TRANSAXLE DRIVE CYCLE TEST 
    • Connect: PCM.
    • Carry out the Dynamic Testing - Engine On as outlined in the Transmission Tester Manual.
    • Does the vehicle upshift when commanded by the tester? 
    1. Yes  : INSTALL a new PCM. RECONNECT all components. RERUN On-Board Diagnostics Tests. If symptoms are still present, REFER to DIAGNOSIS BY SYMPTOM .
    2. No  : GO to A7.
  7. A7 CHECK RESISTANCE OF SOLENOID/HARNESS 
    • Place the Bench/Drive switch in BENCH mode.
    • Rotate solenoid select switch to OHMS CHECK position.
    • Measure the resistance between SS-1 jack and VPWR jack on tester.
      Fig 11: Measuring Resistance Between SS-1 Jack And VPWR Jack On Tester
      G03900555Courtesy of FORD MOTOR CO.
    • Measure the resistance between SS-2 jack and VPWR jack on tester.
      Fig 12: Measuring Resistance Between SS-2 Jack And VPWR Jack On Tester
      G03900556Courtesy of FORD MOTOR CO.
    • Is the resistance for both solenoids between 12 and 22 ohms? 
    1. Yes  : GO to A8.
    2. No  : INSTALL a new solenoid body assembly. RECORD and CLEAR the DTCs. RERUN On-Board Diagnostics tests.
  8. A8 CHECK SOLENOID/HARNESS FOR SHORT TO GROUND 
    • Measure the resistance of each solenoid between BAT (-) jack (engine ground) and each appropriate jack.
      Fig 13: Measuring Resistance Of Each Solenoid Between BAT (-) Jack (Engine Ground) And Each Appropriate Jack
      G03900557Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms (no continuity)? 
    1. Yes  : REFER to DIAGNOSIS BY SYMPTOM .
    2. No  : INSTALL a new solenoid body assembly. RECORD and CLEAR the DTCs. RERUN On-Board Diagnostics tests.
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