P085D Code: Meaning, Causes, and Symptoms | OBD2 Codes

P085D – Gear Shift Control Module ‘A’ Performance

 

P085D Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P085D Possible Causes

 

Faulty Gear Shift Control Module ‘B’,Gear Shift Control Module ‘B’ harness is open or shorted,Gear Shift Control Module ‘B’ circuit poor electrical connection

 

P085D Description

 

The Engine Control Module (ECM) monitors the Gear Shift Control Module. The ECM sets the OBDII when there is a problem communicating with the Gear Shift Control Module.