AutoCodes – Lincoln – P0012 Lincoln

P0012 Lincoln Code - 'A' Camshaft Position Timing Over-Retarded Bank 1

Quick Answer

The Variable Camshaft Timing (VCT) solenoid valve is an integral part of the VCT system. Common causes include Low or Dirty Engine Oil, Incorrect camshaft timing, Faulty Variable Camshaft Timing (VCT) Bank 1 Solenoid 1 (VCT11). 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: P0012 Lincoln indicates 'A' Camshaft Position Timing Over-Retarded Bank 1.
Common causes: Common causes include Low or Dirty Engine Oil, Incorrect camshaft timing, Faulty Variable Camshaft Timing (VCT) Bank 1 Solenoid 1 (VCT11).
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 3,286

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 Aug 28, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0012 Lincoln Description

The Variable Camshaft Timing (VCT) solenoid valve is an integral part of the VCT system. The solenoid valve controls the flow of engine oil in the VCT actuator assembly. As the Powertrain Control Module (PCM) controls the duty cycle of the solenoid valve, oil pressure/flow advances or retards the cam timing. Duty cycles near 0% or 100% represent the rapid movement of the camshaft. Retaining a fixed camshaft position is accomplished by dithering (oscillating) the solenoid valve duty cycle.
The PCM calculates and determines the desired camshaft position. It continually updates the VCT solenoid duty cycle until the desired position is achieved. A difference between the desired and actual camshaft position represents a position error in the PCM VCT control loop. The PCM disables the VCT and places the camshaft in a default position if a concern is detected. A related Diagnostic Trouble Code (DTC) also sets when the concern is detected.
When the VCT solenoid is energized, engine oil is allowed to flow to the VCT actuator assembly which advances or retards the camshaft timing. One half of the VCT actuator is coupled to the camshaft and the other half is connected to the timing chain. Oil chambers between the 2 halves couple the camshaft to the timing chain. When the flow of oil is shifted from one side of the chamber to the other, the differential change in oil pressure forces the camshaft to rotate in either an advance or retard position depending on the oil flow.
This DTC sets when the VCT position is over-retarded. This DTC sets when the camshaft timing exceeds a maximum calibrated value or remains in a retarded position.

OBDII Code P0012 Lincoln - 'A' Camshaft Position Timing Over-Retarded Bank 1 - AutoCodes.com — P0012 Lincoln Code - 'A' Camshaft Position Timing Over-Retarded Bank 1

What does this mean?

What are the Possible Causes of the DTC P0012 Lincoln?

Low or Dirty Engine Oil
Incorrect camshaft timing
Faulty Variable Camshaft Timing (VCT) Bank 1 Solenoid 1 (VCT11)
Faulty Camshaft Position (CMP) Bank 1 Sensor 1 (CMP11)
Variable Camshaft Timing Bank 1 Solenoid 1 circuit is open or shorted
Variable Camshaft Timing Bank 1 Solenoid 1 circuit poor electrical connection
Camshaft Position Bank 1 Sensor 1 circuit is open or shorted
Camshaft Position Bank 1 Sensor 1 circuit poor electrical connection
Faulty Variable Camshaft Timing Phaser

How to Fix the DTC P0012 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 does this mean?

Code Tech Notes

This Diagnostic Trouble Code (DTC) may be accompanied by other DTCs. Diagnose all Camshaft Position (CMP) Sensor DTCs first. If no CMP sensor related DTCs are present, continue checking the Variable Camshaft Timing (VCT) Solenoid.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0012 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.

Need more information about the P0012 Lincoln code?

Need more information on how to fix the P0012 Lincoln code? Get Access to Factory Service Manuals

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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 P0012 Lincoln Code

1. What are the common symptoms of OBDII code P0012 in a Lincoln?

- Common symptoms include rough idling, decreased fuel efficiency, engine misfires, and in some cases, the Check Engine light may illuminate.

2. What does the OBDII code P0012 'A' Camshaft Position Timing Over-Retarded Bank 1 mean in a Lincoln?

- This code indicates that the camshaft timing on bank 1 is over-retarded, potentially causing issues with engine performance.

3. What are the possible causes of OBDII code P0012 in a Lincoln?

- Possible causes include a faulty camshaft position sensor, issues with the camshaft phaser, a malfunctioning variable valve timing (VVT) solenoid, or problems with the engine oil system.

4. How can I diagnose the OBDII code P0012 in my Lincoln?

- Diagnosis typically involves using a scan tool to read the code, checking the camshaft position sensor and VVT solenoid for proper functioning, inspecting the camshaft phaser, and ensuring the engine oil is clean and at the correct level.

5. What are the repair options for OBDII code P0012 in a Lincoln?

- Repair options may include replacing the camshaft position sensor, VVT solenoid, or camshaft phaser, as well as addressing any issues with the engine oil system or timing components.

6. Can driving with OBDII code P0012 in a Lincoln cause further damage?

- Continuing to drive with this code present can potentially cause damage to the engine over time, so it is recommended to address the issue promptly.

7. How much does it typically cost to repair OBDII code P0012 in a Lincoln?

- Repair costs can vary depending on the specific cause of the code and the extent of the repairs needed, but it is advisable to budget for diagnostic fees, parts, and labor costs.

8. Are there any preventive measures to avoid OBDII code P0012 in a Lincoln?

- Regular maintenance, such as oil changes at recommended intervals, can help prevent issues that may trigger this code. Additionally, addressing any warning signs promptly can help avoid more significant problems.

9. Can I reset the OBDII code P0012 in my Lincoln without fixing the underlying issue?

- While clearing the code may temporarily turn off the Check Engine light, it will not resolve the underlying problem causing the code to trigger. It is essential to diagnose and address the root cause of the issue.

10. Is it safe to drive my Lincoln with OBDII code P0012 if the symptoms are not severe?

- It is generally not recommended to drive with this code present, as it can lead to potential engine damage and worsen over time. Addressing the issue promptly is advisable.