Part 3 of 3

Chart C-8B Part 3 Of 3:

Wiring Diagram:

CIRCUIT DESCRIPTION:

The 2nd gear switch in this vehicle is open in 3rd and 4th gear. The ECM uses this signal to disengage the TCC when going into a downshift.

The fourth gear switch is open in fourth gear.

TEST DESCRIPTION: Numbers below refer to circled numbers on the diagnostic chart.

4. The switch state should change when the vehicle shifts into 2nd gear.

DIAGNOSTIC AIDS:

If vehicle is road tested because of a TCC related problem, be sure the switch states do not change while in 4th gear because the TCC will disengage. If switches change state, carefully check wire routing and connections.