Quick Method
TEST # 7 (ALDL Quick Method)GROUND THE D WIRE AT THE TRANSMISSION
Note
You must first have passed ALDL Quick method (Test # 1).
^ Connect one end of a test light or jumper wire to terminal A at the ALDL.
^ Go for a road test. (This can also be done on the lift)
^ At approximately 35 mph, connect the other end of the test light or jumper wire to terminal F at the ALDL. The torque converter should Lock-up.
^ Whether the T/C locks up or not, follow the trouble shooting tree to the next step, usually cooler line surge test.