Checking the wiring and component
- Ignition off
- Open the transmission control system.
Check the cable between transmission connector (transmission side) terminal #A (#A1) and solenoid S1 terminals #A and #E (#A5) and solenoid S1 terminal #B. Check for an open-circuit. See Open-circuit, permanent faults .
HINT: Check solenoid S1 by measuring the solenoid resistance between terminals A and B. The resistance must be between 18 and 30 Ω.
Remedy as necessary.
Other information:
- To open the transmission control system, for removal see Removing gearbox side cover To install see Installing the gearbox side cover .
- To connect the breakout box to the transmission connector, see Connecting the breakout box, GM automatic transmissions
- To replace solenoid S1, see Solenoid for shifting 1-2 and 3-4, 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