Engine-Codes - Generic - P100A

P100A Code - VVEL Response Malfunction Bank 1

- Code Popularity: 5,273 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P100A?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty VVEL Actuator Motor
  • VVEL Actuator Motor harness is open or shorted
  • VVEL Actuator Motor circuit poor electrical connection
  • Faulty VVEL actuator sub assembly
  • Faulty VVEL ladder assembly
  • Faulty VVEL control module
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How to Fix the DTC P100A?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P100A code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P100A Code Mean?

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Rotational movement of the drive shaft equipped with an eccentric cam is transmitted to the output cam via the rocker arm and two kinds of links to depress the intake valve. The Engine Control Module (ECM) decides the target valve lift according to the driving condition and sends the command signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the movement of the output cam by shifting the link supporting point. As a result, valve lift changes continuously to improve engine output and response.

P100A Code - VVEL Response Malfunction Bank 1

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Code P100A Information for Specific Makes

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