Intermittent fault
Check the cable between control module terminal #50 (#A50) and transmission connector (control module side) terminal #A (#A1). Check for an intermittent short-circuit to supply voltage.
Check the cable between control module terminal #53 (#A53) and transmission connector (control module side) terminal #A (#A5). Check for an intermittent short-circuit to supply voltage.
HINT: With the ignition off and an ohmmeter connected to control module terminals #50 (#A50) and #53 (#A53), the resistance must be 18-25 Ω.
Remedy as necessary.
Other information
- To connect the breakout box, see Connecting the breakout box
- 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
- See Checking wiring and terminals
- Continue
Refer to Information