Q: computer will not talk to altenator 2011 vw routan

asked by on

battery was dead had system checked by dealer. Told I need a new alternator and the cost would be around 900 dollars. Purchased a new alternator fro auto parts store. Had alternator replaced. Van will run as long as battery is fully charged, But for some reason it seems that the computer in the van will not communicate with the new alternator. any help will be good.

My car has 100000 miles.
My car has an automatic transmission.

Hi there. Each mechanical and electrical system in today’s vehicles are monitored and in many ways, controlled by a series of sensors and electrical connections that send and receive data from the ECU in order to work effectively. The alternator however, is pretty much a mechanical system, meaning that it won’t fail in most cases due to communication issues with the ECU. It is possible that a few of the charging cables attached to the alternator are not correctly installed or damaged or an error code is stuck in the ECU that is causing a glitch. It would probably best to have a professional mechanic come to your location to complete a car will not hold a charge inspection to determine what is causing these issues with your Volkswagen.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. computer will not talk to altenator 2011 vw routan

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Where is Crankshaft Position Sensor on 2011 VW Routan with 3.6L engine?

The crankshaft position sensor is located in the right rear of the engine block. There is a protective shield that needs to be removed for access to the sensor.

Q: Fuel gauge reads empty way too soon.

Hi there. The diagnoses and repair for the inaccurate fuel gauge should be entirely covered by the manufacturer's warranty. They have three chances to correct this problem, before it falls under the lemon law category. The most likely cause would...

Q: VW Bora V5 2001 automatic dosnt shift gear from 3rd (manually shifted) until i hit the rpm over 6000 plus

This is common when the vehicle is low on transmission fluid or has a faulty transmission control solenoid. Automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...