Okay, possible causes listed below.
Also. Some additional information. This is not an electrical issue but either a valve body issue or worn clutches. Info below
- This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.
- This malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis malfunction.
- This malfunction is detected when the A/T does not shift into first gear position as instructed by the TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.
Hydraulic Control Circuit
Shift Solenoid Valve A
Shift Solenoid Valve B
Saturday, March 10th, 2018 AT 3:46 PM