AutoCodes – Generic – P0C29

P0C29 Code - Electric Transmission Fluid Pump Motor Current High

Quick Answer

The Electronic Transmission Fluid Auxiliary Pump is used to keep the transmission engaged when the engine is stopped and the transmission is in drive. Common causes include Faulty Electronic Transmission Fluid Auxiliary Pump, Electronic Transmission Fluid Auxiliary Pump harness is open or shorted, Electronic Transmission Fluid Auxiliary Pump circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0C29 indicates Electric Transmission Fluid Pump Motor Current High.
Common causes: Common causes include Faulty Electronic Transmission Fluid Auxiliary Pump, Electronic Transmission Fluid Auxiliary Pump harness is open or shorted, Electronic Transmission Fluid Auxiliary Pump circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 10,532

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0C29 Description

The Electronic Transmission Fluid Auxiliary Pump is used to keep the transmission engaged when the engine is stopped and the transmission is in drive. The Transmission Control Module (TCM) monitors the Electronic Transmission Fluid Auxiliary Pump Control Circuit. The TCM sets the OBDII code when the Electronic Transmission Fluid Auxiliary Pump Control Circuit signal is out of factory specifications.

OBDII Code P0C29 - Electric Transmission Fluid Pump Motor Current High - AutoCodes.com — P0C29 Code - Electric Transmission Fluid Pump Motor Current High

What does this mean?

What are the Possible Causes of the DTC P0C29?

Faulty Electronic Transmission Fluid Auxiliary Pump
Electronic Transmission Fluid Auxiliary Pump harness is open or shorted
Electronic Transmission Fluid Auxiliary Pump circuit poor electrical connection

How to Fix the DTC P0C29?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0C29 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0C29 code?

Need more information on how to fix the P0C29 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P0C29 Ford — Electric Transmission Fluid Pump Motor Current High
P0C29 Lincoln — Electric Transmission Fluid Pump Motor Current High
P0C29 Mercury — Electric Transmission Fluid Pump Motor Current High

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.