AutoCodes – Lincoln – P0C29 Lincoln

P0C29 Lincoln 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 Lincoln 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 1,077
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 21, 2020
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Code P0C29 Lincoln 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 Lincoln - Electric Transmission Fluid Pump Motor Current High - AutoCodes.com
P0C29 Lincoln Code - Electric Transmission Fluid Pump Motor Current High

What are the Possible Causes of the DTC P0C29 Lincoln?

  • 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 Lincoln?

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 Lincoln 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.

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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.

Frequently Asked Questions about P0C29 Lincoln Code

1. What does the OBDII code P0C29 mean on a Lincoln vehicle?

The P0C29 code indicates that the Electric Transmission Fluid Pump Motor is experiencing a high current condition, which could signal an electrical or mechanical issue with the pump.

2. What are the common symptoms of the P0C29 code?

Symptoms may include transmission overheating, reduced fuel efficiency, a check engine light, and possible transmission performance issues like erratic shifting.

3. What causes the P0C29 code to appear?

Common causes include a faulty electric transmission fluid pump, damaged wiring or connectors, low transmission fluid, or internal pump motor failure.

4. Can I drive my Lincoln with the P0C29 code?

Driving with this code is not recommended, as it may lead to transmission damage due to insufficient fluid circulation or overheating.

5. How is the P0C29 code diagnosed?

A mechanic will inspect the transmission fluid level, check the wiring and connectors for damage, test the electric pump motor, and use a scan tool to verify the code and monitor pump performance.

6. How can I fix the P0C29 code on my Lincoln?

Repairs may include replacing the electric transmission fluid pump, repairing damaged wiring or connectors, or refilling transmission fluid if low.

7. How much does it cost to fix the P0C29 code?

Repair costs can vary, but replacing the transmission fluid pump typically ranges between $500 and $1,500, depending on labor and parts.

8. Can low transmission fluid cause the P0C29 code?

Yes, low or contaminated transmission fluid can strain the pump motor, leading to high current draw and triggering the P0C29 code.

9. Is the P0C29 code specific to Lincoln vehicles?

While the P0C29 code can appear on other makes, it is often associated with hybrid or electric Lincoln models with an electric transmission fluid pump.

10. What tools are needed to address the P0C29 code?

Tools may include an OBDII scan tool, a multimeter for electrical testing, and basic automotive tools to access and replace the pump if necessary.

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