P2814 critical

Gear Shift Position Actuator Circuit High

The P2814 code means the vehicle's onboard diagnostic system has detected: Gear Shift Position Actuator Circuit High. This is a critical severity code.

My Garage →

Keep driving?: Short distances only
DIY difficulty: hard
Estimated cost: $300 - $1500 (parts and labor)

Check Your Fluid First

ANCEL AD310 OBD-II Scanner

Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Read Transmission Codes

LAUNCH CRP123X (Reads All Systems)

Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Common Symptoms

Shift actuator running continuously
Actuator overheating
Grinding from constant shift attempts
Transmission rapidly cycling between gears

Probable Causes (Ranked by Likelihood)

Short to voltage in actuator circuit Very High
TCM driver stuck commanding actuator High
Actuator relay welded closed Moderate
Wiring cross-contact with power circuit Low

Step-by-Step Diagnostic Procedure

Check actuator circuit for constant voltage
Test for welded actuator relay
Verify TCM can stop commanding actuator
Inspect wiring for contact with power sources

Frequently Asked Questions

Can continuous actuator operation cause damage?

Yes. The actuator motor can overheat and burn out, and constant gear mesh attempts can damage synchronizers and gear teeth.

Should I disconnect the battery?

If the actuator is running continuously with the key off, disconnecting the battery prevents further damage and battery drain until repairs can be made.

What does rapid gear cycling feel like?

The vehicle may lurch and jerk as the transmission rapidly engages and disengages different gears, creating a very unpleasant and potentially dangerous driving experience.