The automobile fault code P1045 indicates a problem with the Variable Valve Actuator (VVA) Solenoid.

The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. The cause could be a faulty VVA Solenoid, an open or shorted harness, a poor electrical connection, or a faulty Powertrain Control Module (PCM).

To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look for broken, bent, pushed out, or corroded pins in the connectors.

The repair time for this issue is estimated to be around 1.0. It is important to address this problem promptly to prevent further damage to the engine.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1045 fault code.

  • The symptoms of the automobile fault code P1045 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code P1045 can be caused by a faulty Variable Valve Actuator (VVA) Solenoid, an open or shorted Variable Valve Actuator Solenoid harness, a poor electrical connection in the Variable Valve Actuator Solenoid circuit, or a faulty Powertrain Control Module (PCM).

  • The fault code P1045 can be caused by the following: 1.
  • Faulty Variable Valve Actuator (VVA) Solenoid.
  • 2.
  • Variable Valve Actuator Solenoid harness is open or shorted.
  • 3.
  • Variable Valve Actuator Solenoid circuit has a poor electrical connection.
  • 4.
  • Faulty Powertrain Control Module (PCM).

To fix the automobile fault code p1045, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1045, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors.
  • This fix is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code P1045 based on the estimated repair time of 1.0 hour include the hourly rate charged by auto repair shops, which typically ranges between $75 and $150.

The P1045 fault code refers to the Cylinder 1 Oil Supply Solenoid Valve Voltage being out of range. This fault code is related to the Multi-Air system, which is an electronically controlled variable intake valve phase and lift system.

In the Multi-Air system, each intake valve is controlled independently through an electronically controlled hydraulic link between the camshaft and intake valve. The valve lift and timing can be adjusted infinitely. The Multi-Air valve train includes a mechanical camshaft lobe that acts on a hydraulic pump located between the camshaft intake lobe and the intake valve.

This pump provides oil under pressure to a two-way electro-hydraulic solenoid valve called the Variable Valve Actuator (VVA) Solenoid. The P1045 fault code is triggered when the Powertrain Control Module (PCM) calculates that the delay in the measurement of current samples from the VVA Solenoid is greater than the required sampling period.

This indicates that the voltage of the Cylinder 1 Oil Supply Solenoid Valve is out of range. If you encounter this fault code, it is recommended to have the Cylinder 1 Oil Supply Solenoid Valve checked and replaced if necessary.

This will ensure proper functioning of the Multi-Air system and optimize the performance of your vehicle.

What are the possible causes of the automobile fault code P1045?

If you see the engine light or service engine soon warning light on, the fault code P1045 could be the culprit. This code is often caused by a faulty Variable Valve Actuator (VVA) Solenoid, an open or shorted VVA Solenoid harness, a poor electrical connection in the VVA Solenoid circuit, or a faulty Powertrain Control Module (PCM). To fix the issue, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Also, look out for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors to fix the P1045 fault code?

If you’re dealing with the P1045 fault code and your engine light is on, it’s time to take action. The most common cause is a faulty Variable Valve Actuator (VVA) Solenoid, but it could also be due to an open or shorted harness, poor electrical connection, or a faulty Powertrain Control Module (PCM). To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken, bent, pushed out, or corroded pins. This simple step could be the key to resolving the problem and getting your engine running smoothly again.

What should I do if I find damaged components or broken, bent, pushed out, or corroded connector’s pins while fixing the P1045 fault code?

If you come across damaged components or broken, bent, pushed out, or corroded connector’s pins while fixing the P1045 fault code, it is important to address these issues. Visually inspect the related wiring harness and connectors to identify any potential damage. By checking for these issues, you can ensure that the Variable Valve Actuator (VVA) Solenoid and its circuit are functioning properly. This will help resolve the fault code and prevent any further complications.

p1045 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the issue could be a faulty Variable Valve Actuator (VVA) Solenoid or a problem with the wiring harness or connectors. To fix it, visually inspect the wiring and connectors for any damage, and check for broken or corroded pins.

Scroll to Top