Checking solenoid STH
- Ignition off
- Disconnect the transmission connector
- Connect adapter 9511505 and breakout box 9813190 to the transmission connector (transmission side)
- Connect an ohmmeter between terminals #C (#A3) and #D (#A4) on the breakout box.
The solenoid STH resistance must be between 3 and 5 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 .
Was the resistance OK?
- YES
Refer to Checking the cables in the circuit for solenoid STH
- NO
Refer to Checking the wiring and component