Workshop Manual

7A1–72
TRANSMISSION CONTROL SYSTEM (4L30–E)
B When diagnosing for a possible intermittent short or
open condition, move the wiring harness while
observing test equipment for a change.
Test Description
The numbers below refer to the step numbers on the
diagnostic chart:
5. This test measures the resistance of the component.
6. This test checks the function of the shift solenoid B
and the transmission internal wiring harness.
9.This test checks for power to the shift solenoid B
from the ignition through the PCM.
Shift Solenoid Status Chart
Gear Shift solenoid A Shift solenoid B
1st OFF ON
2nd ON ON
3rd ON OFF
4th OFF OFF