P085D OBD-II: Gear Shift Control Module "A" Performance

P085D Severity

Urgent

Should you fix P085D yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

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P085D Summary Find a Repair Shop P085D Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P085D?

The Transmission Control Module (TCM) and the engine computer (PCM) constantly talk to each other to ensure that the driver's request for performance is met. If the TCM and PCM fail to communicate, code P085D is stored.

OBD II Fault Code

OBD II P085D

OBD-II Code Transmission may not shift properly is defined as a Gear Shift Control Module "A" Performance

Transmission may not shift properly Symptoms

Engine may not start
Transmission may not shift properly

Common Problems That Trigger the P085D Code

Powertrain Control Module (PCM) failure
Transmission Control Module (TCM) failure
Wiring issue

OBD Code Resources

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OBD II Fault Code

OBD II P085D

OBD-II Code Transmission may not shift properly is defined as a Gear Shift Control Module "A" Performance

Transmission may not shift properly Symptoms

Engine may not start
Transmission may not shift properly

Common Problems That Trigger the P085D Code

Powertrain Control Module (PCM) failure
Transmission Control Module (TCM) failure
Wiring issue

P085D OBD-II: Gear Shift Control Module "A" Performance

Should you fix P085D yourself?

What causes OBD-II fault code P085D?

Need a P085D diagnosis? Trust our experts.

OBD II Fault Code

Transmission may not shift properly Symptoms

Common Problems That Trigger the P085D Code

OBD Code Resources

Need a P085D diagnosis? Trust our experts.

Ask our experts about P085D.

Other OBD-II Codes

OBD II Fault Code

Transmission may not shift properly Symptoms

Common Problems That Trigger the P085D Code