Q: Difficult startup, low battery voltage, no oil pressure with windows, sunroof and locks malfunctioning

asked by on

I bought a 2001 Volvo S60. It was running well until it started showing the DSTC service warning, that appeared from time to time. Although I tested the battery, there were "low battery voltage" warnings. Then other warnings started appearing--no oil pressure; alarm service required and immobilizer warning. Now it has difficulty starting. The battery sometimes appears to be dead. Each time it starts,there are new warnings. In addition to that, the sunroof, windows and locks are not functioning anymore. Do you have any suggestion why this is happening? The previous owner never gave me the master key--could that be the cause of these malfunctions or is it just battery?

If the battery tested good, then I would suspect a problem with the alternator. The battery is basically just an electronic storage device that must be charged regularly by the alternator. In addition, there are a couple dozen modules aboard a Volvo and the must have adequate voltage for proper operation. When this happens, the instrument cluster will light up like a Christmas tree. I suggest you have a trained professional, such as one form YourMechanic, test your charging system to determine if the alternator has failed.

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. Difficult startup, low battery voltage, no oil pressure with windows, sunroof and locks malfunctioning

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: Steering wheel won't lock. Yellow steering lock warning on dash. Only comes on when removing fob.

Hi there. The issue seems to be the shifter interlock solenoid may be malfunctioning causing the steering wheel lock to not release or not engage. I suggest having the computer scanned for any codes that would be stored or pending...

Q: Q: How do I use the express windows?

The express windows allow you to roll down or roll up the windows without keeping your finger on the switch. To use the express mode, press the window switch all the way down, or pull the window switch all the...

Q: Stop car check oil warning

This light will usually come on when one of two things are happening. Either the motor is in fact low on oil or the oil pressure sending unit is not working properly and may be producing a faulty reading. I...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.