P1D34 – Transmission Gear Position Learn Not Run

P1D34 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1D34 Possible Causes

Transmission Control Module (TCM) Quick Learn Not Performed

P1D34 Description

This diagnostic checks for the successful completion of the gear position learning procedure. This test is only performed when the learning procedure is externally requested by a service technician after transmission repairs, software updates or at the transmission assembly end of line.