Checking components and wiring
- Ignition off
- Open the transmission control system.
Check the cable between transmission connector (transmission side) terminal #C (#A3) and solenoid SL terminal #A. Check the cable between transmission connector terminal #E (#A5) and solenoid SL terminal #B. Check these cables for a short-circuit to ground. See Short-circuit to ground, permanent faults . Check all the cables in the wiring harness from the transmission connector to the transmission components. Check for short-circuits to each other.
HINT: Check solenoid SL. Measure the solenoid resistance between terminals 1 and 2. The resistance must be between 3 and 5 Ω.
Remedy as necessary.
Other information:
- To connect the breakout box to the transmission connector, see Connecting the breakout box, GM automatic transmissions
- To open the transmission control system, For removal, see Removing gearbox side cover To install, see Installing the gearbox side cover .
- To replace solenoid S2, see Solenoid for shifting 2-3, replace
- To replace the cable harness, see Wiring harness / oil temperature sensor, replacing
- For information about signals, see Signal specification .
- Continue
Refer to Resetting the adaptation