Skip the auto shop - Our mechanics make house calls

Q: Battery messages displayed on the driver's information centre

asked by on

My Vauxhall corsa is just over a year old, the first message was around three weeks ago, saying, service battery charging system, with a picture of a spanner. The next message was two weeks ago on a journey, battery charging activated with a explanation mark. Put it into local dealer and a new engine sensor unit was fitted, but since this has been carried out the first message has returned to the driver's information centre twice. What should I do? We've only had the car a month.

My car has 12500 miles.
My car has a manual transmission.

A: Hello and thank you for contacting YourMech...

Hello and thank you for contacting YourMechanic. The issue is that the vehicle's charging system is malfunctioning. Check the alternator for voltage increase with the engine running. If the voltage is 13.5 to 14.7, then the alternator is producing a good voltage. Now with the engine running, put a load on the battery simulating that the battery is dead and the alternator should produce its full amount of amperage. Check the amperage on the alternator and verify the amperage with the amperage listed on the alternator. If you need assistance with the charging system, then seek out a professional, such as one from YourMechanic, to diagnose the charging issue with your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car shuts off after a few miles

Hello. The most common cause of this on your car is a bad crank position sensor. These fail all of the time on this car and will cause it to stall. I usually install a scan tool and check for...

Q: Battery light on

This may be a sign of a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while...

Q: I recharged the battery in my truck, but it still won't start.

I would have the battery load tested to see if it is bad. When the batteries get old they will not hold a charge and can not crank the car.

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.