AutoCodes – Cadillac – P055D Cadillac

P055D Cadillac Code - Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage

Quick Answer

The Intake Camshaft Position Actuator Oil Pressure Sensor, located in the cylinder head, is a 3-wire sensor comprising of a signal circuit, low reference circuit and the 5-volt reference circuit. Common causes include Faulty Intake Camshaft Position Actuator Oil Pressure Sensor, Intake Camshaft Position Actuator Oil Pressure Sensor harness is open or shorted, Intake Camshaft Position Actuator Oil Pressure Sensor 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: P055D Cadillac indicates Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Intake Camshaft Position Actuator Oil Pressure Sensor, Intake Camshaft Position Actuator Oil Pressure Sensor harness is open or shorted, Intake Camshaft Position Actuator Oil Pressure Sensor 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 748

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 Oct 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P055D Cadillac Description

The Intake Camshaft Position Actuator Oil Pressure Sensor, located in the cylinder head, is a 3-wire sensor comprising of a signal circuit, low reference circuit and the 5-volt reference circuit. The Engine Control Module (ECM) supplies 5 volts to the sensor via the 5-volt reference circuit and provides ground via the low reference circuit. The ECM monitors the signal circuit to determine the sensor voltage is within the normal operating range of approximately 1-4 volts. When the intake camshaft position actuator oil pressure is high, the sensor voltage is high and the ECM senses a high signal voltage. When the intake camshaft position actuator oil pressure is low, the sensor voltage is low and the ECM senses a low signal voltage. The intake camshaft position actuator oil pressure sensor is used by the ECM for variable valve lift performance diagnosis.

OBDII Code P055D Cadillac - Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage - AutoCodes.com — P055D Cadillac Code - Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P055D Cadillac?

Faulty Intake Camshaft Position Actuator Oil Pressure Sensor
Intake Camshaft Position Actuator Oil Pressure Sensor harness is open or shorted
Intake Camshaft Position Actuator Oil Pressure Sensor circuit poor electrical connection

How to Fix the DTC P055D Cadillac?

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 P055D Cadillac 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 P055D Cadillac Code

1. What are the common symptoms of OBDII code P055D in a Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

The common symptoms include check engine light illumination, rough idling, decreased fuel efficiency, and potential engine stalling.

2. What are the typical causes of OBDII code P055D in a Cadillac triggering the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

Common causes include a faulty oil pressure sensor, issues with the camshaft position actuator, wiring harness problems, or engine oil-related issues.

3. How can I diagnose the cause of OBDII code P055D in my Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

Diagnosis typically involves using a scan tool to read the code, checking the oil pressure sensor's functionality, inspecting the camshaft position actuator, and examining the wiring for any visible damage.

4. Can I continue driving my Cadillac with OBDII code P055D related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

It is not recommended to drive your Cadillac with this code active, as it can lead to potential engine damage or performance issues. It is best to address the underlying problem promptly.

5. What repairs may be needed to fix OBDII code P055D in a Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

Repairs may involve replacing the faulty oil pressure sensor, fixing wiring issues, replacing the camshaft position actuator, or addressing any engine oil-related problems.

6. Are there any DIY tips for addressing OBDII code P055D in a Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

While some basic checks like inspecting wiring connections can be done DIY, it is recommended to consult a qualified mechanic for proper diagnosis and repair of this code.

7. How much can I expect to pay for repairing OBDII code P055D in a Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

The cost of repair can vary depending on the exact cause of the code, but it may range from $200 to $500 or more, including parts and labor.

8. Is it necessary to reset the OBDII code P055D in a Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage after making repairs?

Yes, it is essential to reset the code after repairs are made to clear the fault memory in the vehicle's system and ensure that the issue has been successfully addressed.

9. Can extreme weather conditions affect the triggering of OBDII code P055D in a Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

Extreme weather conditions like high temperatures or humidity can potentially exacerbate existing issues leading to the activation of this code. It is important to address any underlying problems promptly.

10. How long does it typically take to repair OBDII code P055D in a Cadillac related to the Intake Camshaft Position Actuator Oil Pressure Sensor Circuit High Voltage?

The repair time can vary based on the exact cause of the code and the complexity of the repair needed. It may take anywhere from a few hours to a full day to address this issue effectively.