Code 67, TCC Solenoid Circuit Check - 4L60-E Transmission: Notes
TCC solenoid is a normally open exhaust valve. Control module will engage solenoid by grounding circuit with an internal quad-driver.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- This test checks ability of control module to control solenoid.
- This test checks for power, from ignition through fuse, to TCC solenoid.