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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - 42RE & 44RE & 46RE & 47RE Automatic Transmission (W/O TCM) >> Diagnostic Tests >> Test TC-171D - Governor Pressure Solenoid Circuit

Test TC-171D - Governor Pressure Solenoid Circuit

CAUTION: Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
NOTE: Perform TEST TC-171A  before proceeding. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS . Perform VERIFICATION TEST VER-1A  after each repair.
  1. Turn ignition off. Disconnect transmission solenoid connector. Inspect connector and terminals for damage. Repair connector and terminals as necessary. If connector and terminals are okay, go to next step.
  2. Using an external ohmmeter, measure resistance between terminal No. 8 on PCM White connector and engine ground. If resistance is less than 5 ohms, repair short to ground in governor pressure solenoid circuit. If resistance is 5 ohms or more, go to next step.
  3. Measure resistance between transmission control relay output circuit on transmission control relay connector and engine ground. If resistance is less than 5 ohms, repair short to ground in governor pressure solenoid circuit. If resistance is 5 ohms or more, go to next step.
  4. Drain and remove transmission pan. Reconnect transmission solenoid connector. Disconnect governor pressure solenoid connector. Inspect connector and terminals for damage. Repair connector and terminals as necessary. If connector and terminals are okay, go to next step.
  5. Measure resistance between terminal No. 8 on PCM White connector and engine ground. If resistance is less than 5 ohms, replace internal transmission wiring harness. If resistance is 5 ohms or more, go to next step.
  6. Measure resistance between transmission control relay output circuit on transmission control relay connector and engine ground. If resistance is less than 5 ohms, replace internal transmission wiring harness. If resistance is 5 ohms or more, replace governor pressure solenoid.
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