Checking solenoid S2

Fig 1: Identifying Ignition OFF

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Fig 2: Identifying Connector(s) Disconnected

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• Ignition off
• Disconnect the automatic transmission connector
• Connect adapter 9511505 and breakout box 9813190 to the transmission connector (transmission side)
• Connect an ohmmeter between terminals #B (#A2) and #E (#A5).

  The solenoid S2 resistance must be between 18 and 30 Ω.

  Other information: 

  • To connect the breakout box to the transmission connector, see Connecting the breakout box, GM automatic transmissions
  • For information about signals, see Signal specification .
  Fig 3: Identifying Breakout Box

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  Fig 4: Identifying Ohms Display

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  Fig 5: Identifying Shift Solenoid S1 And S2

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Was the resistance OK? 

• YES 

  Refer to Checking the wiring 

• NO 

  Refer to Checking the wiring and component