Erratic Shifting: Fails to Shift In D, S, and 1ST In S; Starts Off In 3RD

Erratic shifting: fails to shift in D, S, and 1st in S; starts off in 3rd

Diagnostic Procedure:

1. Shift solenoid valve A defective

2. Shift valve A defective

Also check for:

- Check for a stored DTC, and check for loose connectors.
- Inspect the O-ring, and check for a seized shift solenoid valve.