Workshop Manual

7A1–28
TRANSMISSION CONTROL SYSTEM (4L30–E)
Test Description
The numbers below refer to the step numbers on the
diagnostic chart:
3. This test checks the indicated range signal to the
manual valve actually selected.
6. This test checks for continuity between each
selected range switch connector terminals.
Range Switch Logic Table
Range
Range Switch Pin
g
Position
A B C P(G)
Park ON OFF OFF ON
Reverse ON ON OFF OFF
Neutral OFF ON OFF ON
D4 OFF ON ON OFF
D3 ON ON ON ON
2 ON OFF ON OFF
L OFF OFF ON ON
Illegal OFF OFF OFF OFF
Illegal OFF OFF OFF ON