Volvo S40 Reduced Power light is on Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(176)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(176)

Reduced Power light is on Inspection Service

How much does a Reduced Power light is on Inspection cost?

On average, the cost for a Volvo S40 Reduced Power light is on Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Volvo S40L5-2.5L TurboService typeReduced Power light is on InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2005 Volvo S40L5-2.4LService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2011 Volvo S40L5-2.5L TurboService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2002 Volvo S40L4-1.9L TurboService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
2007 Volvo S40L5-2.4LService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2006 Volvo S40L5-2.5L TurboService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2003 Volvo S40L4-1.9L TurboService typeReduced Power light is on InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
2008 Volvo S40L5-2.5L TurboService typeReduced Power light is on InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Volvo S40 Reduced Power light is on Inspection prices

A Reduced Power light usually indicates a fairly serious problem with the throttle system. When this light illuminates the vehicle will often go into a “safe mode”, which will severely limit the speed of the car and in some cases will render the vehicle un-drivable.

Since the Reduced Power light can trigger for a number of different reasons, tracking down the exact cause is extremely important, if the vehicle is not properly diagnosed and repaired, the Reduced Power light will trigger again, putting the vehicle in safe mode.

How this system works:

When the vehicle’s computer detects a fault in the engine that affects its drivability, performance, transmission or emission system it will trigger the reduced power light. It will also trigger if there is an issue with the electronic throttle, the accelerator pedal or the throttle module.

When a vehicle goes into reduced power mode it will seriously impact its performance. Some vehicle will be restricted to idle speed while others restrict speed to 20-30 miles per hour. The Reduced Power trigger will save Diagnostic Trouble Codes (DTCs), which will indicate where the fault occurred. In most cases, a Restricted Power light is related to a throttle body or the connector.

Common reasons for this to happen:

  • Faulty Throttle Body: A throttle body is part of the of the air intake system which helps control the amount of air going into the engine. If a throttle body is failing the engine will not get the correct mixture of air and fuel. This can trigger the Reduced Power light as well as lead to a poor running engine. It can also trigger the Check Engine light.

  • Failing Throttle Position Sensor: The throttle position sensor tells the vehicle computer the position of the gas pedal. The computer uses this information to calculate the proper amount of air and fuel to send to the engine. The throttle position sensor also controls shifting the gears of a vehicle, which means that a faulty throttle position sensor will prevent a car from changing gears. If this part is failing, the Reduced Power light will trigger.

  • Faulty Engine Control Unit: The engine control unit is an essential component of a vehicles computer. It regulates and controls many systems, including the drive train and parts of the engine. If a fault is detected in this crucial part, it can trigger the Reduced Power light as well as the Check Engine light. This is a major issue that should be investigated as soon as possible.

  • Faulty Wiring: Exposed or damaged wires can cause issues with the any of these components and will possibly trigger the Reduced Power light. A loose wiring crimp can also be the culprit. Wiring issues can be tricky to track down so using a professional mechanic is a necessity.

  • Malfunctioning Oxygen Sensors: Oxygen sensors are responsible for measuring how rich or lean exhaust gases are leaving a vehicles combustion chamber. The vehicle’s computer uses this information to constantly adjust the amount of fuel going into the engine. A failing or dirty sensor can put too much or too little fuel into the engine. While a failing oxygen sensor will usually trigger a Check Engine light it is possible that the Reduced Power light could also trigger.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the Reduced Power light issue, ​and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will inspect your vehicle's air intake system, electrical wiring and sensors, including the throttle body and oxygen sensors, along with other important components. It may be necessary for the mechanic to test drive the car to verify the complaint and provide an accurate diagnosis.

How important is this service?

The Reduced Power light only illuminates if there is a serious issue with the vehicle that must be addressed immediately. In almost all cases, the throttle or the vehicles computer will be malfunctioning which can make driving the vehicle dangerous. While it varies by manufacturer, most vehicles that go into “safe mode” will stay there until the error codes are read by a code scanner.

If the vehicle Reduced Power light illuminates the vehicle should immediately be inspected, diagnosed and repaired.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Volvo mechanics

Real customer reviews from Volvo owners like you.

Excellent Rating

(176)

Rating Summary
168
2
2
1
3
168
2
2
1
3

Robert

31 years of experience
641 reviews
Robert
31 years of experience
Volvo S40 L5-2.4L - Brake Pads Replacement (Front) - San Jose, California
Awesome

Kerry

31 years of experience
27 reviews
Kerry
31 years of experience
Volvo S40 L4-1.9L Turbo - Oxygen Sensor Replacement (Front/Upper/Upstream, Rear/Lower/Downstream) - Atlanta, Georgia
Very timely and efficient. Had all the right tools

Kiri

20 years of experience
372 reviews
Kiri
20 years of experience
Volvo S40 L5-2.5L Turbo - Brake Pads Replacement (Front) - Woodbury, New Jersey
Excellent work

Robert

16 years of experience
81 reviews
Robert
16 years of experience
Volvo S40 L5-2.5L Turbo - Radiator - Chandler, Arizona
Dud a great job on a hot day

Excellent Rating

(176)

Rating Summary
168
2
2
1
3
168
2
2
1
3
Number of Volvo S40 services completed
1936+
services done by our mechanics
TOTAL NUMBER OF EXPERT Volvo MECHANICS
600+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Ignition Relay
Common signs include the car stalling or not starting, a dead battery, and a burned relay.
Symptoms of a Bad or Failing Trunk Lock Actuator
Common signs include the trunk not opening even after hearing a click, the release buttons not working, and an actuator that doesn't stop clicking.
The Guide to Right-of-Way Laws in Alaska
Traffic Traffic laws are founded in common sense, and are in place to ensure that traffic moves safely and smoothly. In Alaska, most accidents are due to failure to yield right of way when required by law. “Right-of-way” is the...

Knock sensor 1

Hello there. The knock sensor code (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-faulty-knock-sensor) can have various causes on your 2004 Chevrolet Silverado. The knock sensor circuit low, bank 1 code is telling us that the knock sensor in bank 1 that it has low circuit voltage....

I hit something last night and smell gas in the car - is it my gas pump or something else?

Hi there. In most cases, a fuel leak after hitting an object may be caused by a ruptured fuel line, the fuel cell being damaged, or it could be caused by the fuel pump that is damaged. If you've booked...

Must you replace all ignition coils or faulty ones only for 2010 BMW 550i GT?.

Ignition coils (https://www.yourmechanic.com/services/ignition-coil-replacement) can be individually replaced without concern as to engine operation however fuel injectors are a different matter. If you replace one fuel injector, the other 7 fuel injectors should be removed from the fuel rail and professionally...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com