Checking the cables in the circuit for solenoid STH

Fig 1: Identifying Ignition OFF

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Fig 2: Identifying Connectors

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Fig 3: Identifying Control Module Disconnected

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• Ignition off
• Connect the breakout box to the transmission
• Disconnect the control module.
• Disconnect the transmission connector
• Connect adapter 9511505 and breakout box 9813190 to the transmission connector (control module side).

  Check the cable between control module terminal #A52 and transmission connector terminal #C (#A3) for a short-circuit to ground.

  Check the cable between control module terminal #A70 (#B10) and transmission connector terminal #D (#A4) for a short-circuit to ground.

  Other information: 

  • To connect the breakout box to the control module, see Connecting the breakout box
  • To connect the breakout box to the transmission connector, see Connecting the breakout box, GM automatic transmissions
  • For information about signals, see Signal specification
  • See Checking wiring and terminals. Permanent fault
  Fig 4: Identifying Breakout Box

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  Fig 5: Identifying Ohms Display

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Was the wiring OK? 

• YES 

  Refer to Checking the wiring and component 

• NO 

  Refer to Erasing diagnostic trouble code (DTC)