Question about 2003 Volvo XC90

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Elec power system needs servicing message appeared and the generator warning light came on.

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You should have your starting/charging system tested. The battery or alternator may be bad or starting to get bad, or you may have a bad connection at the battery.

Posted on Aug 20, 2010

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2003 Ford ka what colour is the wire for the alternator warning light on dash cluster


There isn't one ! This vehicle relies on serial data communication . The PCM sends an message on the data bus to the microprocessor inside the instrument cluster . The PCM controls the operation of the charging system warning indicator in the instrument cluster. The PCM is therefore responsible for turning the warning indicator off after the engine is started and illuminating it under fault conditions (when the generator is not generating the correct amount of current with the engine running). The warning indicator will also be illuminated by the PCM at key ON engine OFF, and stall conditions.
Charging System Warning Indicator
The instrument cluster receives the charging system status from the PCM over the SCP or CAN communication network. The PCM controls the charging system and the charging system warning indicator. The PCM is therefore responsible for turning the lamp off once the system is running and illuminating it under fault conditions (including stall conditions).
How to Diagnose Controller Area Network CAN Your best bet would be to take your vehicle to a qualified repair shop .

Jun 23, 2016 | 2003 Ford Focus

1 Answer

I have a '99 dodge grand caravan se, while in park the abs light came on, the battery light came on, and the check engine light has been on,


Looks like you have a few issues there.

1. The battery warning. This is indicative of a weak battery and if your battery is 3 years old or more I would replace it.

2. If you have a weak battery this can trigger other warning lights in the vehicle, typically the ABS warning but sometimes other warning lights as well depending on the electronic features in the car. If you replace the battery this should correct the battery warning and most likely the ABS warning if both of these warnings appeared at the same time.
Normally, once the ABS warning is displayed the anti lock braking system(ABS) will be shut down. Whilst your braking will be normal, if you brake too hard and lock up your wheels on a slippery road there is no ABS assist to prevent the brake lock up which you have when the system is working.

3. If the alternator on the engine is not generating sufficient power and thus not charging the battery at all, or very little, you will likely get a battery warning light. I don't know if your 1999 vehicle has a warning light to indicate a faulty alternator or not.

4. Check Engine Light.
You suggested the CE warning has been showing up for a few days and before the battery and ABS warnings popped up.
The CE warning can be caused by dozens of different engine issues.
The vehicle needs to be scanned with the appropriate scan tool to see what fault codes the onboard computer is generating because if you have a CE warning light there will be fault codes generated 99% of the time.

Once these fault codes have been pulled the mechanic can start to diagnose the cause of the problem or problems. Each engine fault code your car's computer is generating can be caused by different types of problems so it is important that they diagnose the issues correctly. Otherwise your Check Engine light will remain on as long as the causes are not identified and fixed.

Dec 29, 2015 | Dodge Cars & Trucks

1 Answer

Why do i get a increased battery discharge message on bmw 2012


1. If you have a sound battery (and you may not) most likely the alternator is providing insufficient charge to the electrical system in the vehicle when driving and the demands of the system are drawing power from the battery.

2. The battery itself may also be weak and need to be replaced. A weak battery will frequently generate system warnings of various kinds. If it is the original battery still in the 2012 car then as a first step replace the battery with a new one as they can easily begin to fail at 3 years.

The electrical systems on these cars are extremely complex and if you still get the warning message after the battery is replaced then take it to BMW service and have them check the car over. Yes I know that is expensive but that goes with buying that particular brand of car. When you have problems in future with these cars, and you will, they will inevitably be quite expensive to fix in many cases and require specialist knowledge.

Nov 30, 2015 | 2012 BMW 1 Series M

1 Answer

What is causing the battery to drain?


Running the car will drain the battery it if it's not charging ! An if your charging light is on it isn't charging ! Did you check power an grounds on the alternator ? There is a single heavier wire on the back of the alternator, this should have battery voltage ! You may want to take this to a ASE certified repair shop !
Functionality
With the ignition switch in the RUN position, voltage is applied through the warning indicator I circuit 904 (LG/RD) to the voltage regulator. This turns the regulator on, allowing current to flow from battery sense A circuit 35 (OG/LB) to the generator field coil. When the engine is started, the generator begins to generate alternating current (AC) which is internally converted to direct current (DC). This current is then supplied to the vehicle's electrical system through the output (B+) terminal of the generator.
Once the generator begins generating current, a voltage signal is taken from the generator stator and fed back to the regulator S circuit 4 (WH/BK). This voltage feedback signal (typically half the battery voltage) is used to turn off the warning indicator.
With the system functioning normally, the generator output current is determined by the voltage of the A circuit 35 (OG/LB). The A circuit 35 (OG/LB) voltage is compared to a set voltage internal to the regulator, and the regulator controls the generator field current to maintain the correct generator output.
The set voltage will vary with temperature and is typically higher in cold temperatures and lower in warm temperatures. This allows for better battery recharge in the winter and reduces the chance of overcharging in the summer.
Battery Positive Output (B+) Circuit 38 (BK/OG)
The generator output is supplied through the battery positive output (B+) terminal on the back of the generator to the battery and electrical system.
I Circuit 904 (LG/RD)
The I (ignition) circuit 904 (LG/RD) is used to turn on the voltage regulator. This circuit is powered up with the ignition switch in the RUN position. This circuit is also used to turn the charging system warning indicator on if there is a fault in the charging system operation.
A Circuit 35 (OG/LB)
The A (battery sense) circuit 35 (OG/LB) is used to sense battery voltage. This voltage is used by the regulator to determine generator output. This circuit is used to supply current to the generator field (rotor). The amount of current supplied to the rotor will determine generator output.
S Circuit 4 (WH/BK)
The S (stator) circuit 4 (WH/BK) is used to feed back a voltage signal from the generator to the regulator. This voltage is used by the regulator to turn off the charging system warning indicator. The S circuit is fed back externally on external mounted regulator generators.
Visual Inspection Chart Mechanical Electrical
  • Battery case, posts, hold-down clamp, cables and connections
  • Generator drive (serpentine) belt for condition and tension to make sure there is no slip between the belt and the pulley. For additional information, refer to Section 303-05 .
  • Battery charge
  • Generator pulley
  • Battery junction box (BJB)Mega Fuse
  • Battery junction box fuse:
    • 11 (20A)
  • Central junction box (CJB) fuse:
    • 30 (30A)
  • Circuitry
  • Charging system warning indicator
  • Cables
  1. Check the operation of the charging system warning indicator lamp (instrument cluster). Normal operation is as follows:
    • With the ignition switch OFF, the charging system warning indicator should be OFF.
    • With the ignition switch in RUN and the engine off, the charging system warning indicator light should be on.
    • With the engine running, the charging system warning indicator light should be off.
  1. Verify the battery condition. Refer to Section 414-01 .
Normal Charging System Voltages and Charging System Warning Indicator Operation Ignition Switch Position A Circuit 35 (OG/LB) S Circuit 4 (WH/BK) I Circuit 904 (LG/RD) Generator B+ Circuit 38 (BK/OG) Battery Engine to Battery Ground Charging System Warning Indicator Operation OFF 12 volts 0 volts 0 volts 12 volts 12 volts 0 volts Off RUN-engine off 12 volts 0 volts 1-3 volts 12 volts 12 volts 0 volts Illuminated RUN-engine running 13-
15 volts 1/2 battery voltage 13-
15 volts 13-
15 volts 13-
15 volts 0 volts Off
  1. If the customer concern is verified after the initial inspection, refer to the Symptom Chart to determine which tests to carry out.
    • The charging system warning indicator is on with the engine running (the system voltage does not increase)
    • Circuitry.
    • Voltage regulator.
    • Generator.
    • GO to Pinpoint Test B .
    Your whole problem is the alternator is not charging , a couple tests with a volt meter would tell you !

Aug 16, 2015 | 2001 Ford Expedition

1 Answer

I keep getting a message service stabilitrak


StabiliTrak Indicator Light: If the warning light does not come on then, have it fixed so it will be ready to warn you if there is a problem. If it stays on, or comes on when you are driving, there may be a problem with your StabiliTrak system and your vehicle may need service. When this warning light is on, the system is off and will not limit wheel spin. Adjust your driving accordingly.

This light will also flash when the StabiliTrak system is active. If the StabiliTrak system warning light comes on and stays on for an extended period of time when the system is turned on, your vehicle needs service.

The traction control part of StabiliTrak can be turned off by pressing and releasing the StabiliTrak button if both systems (traction control and StabiliTrak) were previously on. To disable both traction control and StabiliTrak, press and hold the button for five seconds.

Traction control and StabiliTrak can be turned on by pressing and releasing the StabiliTrak button if not automatically shut off for any other reason.

When the TCS or StabiliTrak system is turned off, the StabiliTrak light and the appropriate TCS off or StabiliTrak off message will be displayed on the DIC to warn the driver. Your vehicle will still have brake-traction control when traction control is off, but will not be able to use the engine speed management system.

If the StabiliTrak and/or Traction Control are not operating properly, I encourage you to take your vehicle in for inspection. A certified technician will be able to offer a more accurate diagnosis.

Apr 29, 2015 | Cars & Trucks

1 Answer

All the lights on the dash and interior as well as the headlights were flickering on and off suddnely. All the lights on the dash including all warning lights came on. Then a message appeared saying...


Just wanted to let everyone know what the problem was. The brake light switch was causing the problem.

When I spoke with the "GOOD" dealership they had asked if I was having a problem with the cruise control as well and that if I were it was more than likely the brake switch. At the time I didn't know yes or no, as I have mainly been city driving (not to easy to use the cruise). So I went for cruise and tried the cruise control and it didn't work, it came on but I was unable to set it for a specific speed.

So I headed over to the "GOOD" dealership (as they had this part in stock) purchased the brake switch for $15 and proceeded to change the switch out in the parking lot. It only took 5 minutes and no tools were required. Afterwards I went for a cruise and the cruise control was working fine, and I have yet to see the dreaded "Service Elec Brake System" warning message in 3 hours of driving.

Hope helps and keep us updated.

Feb 09, 2011 | 2005 Jeep Grand Cherokee

3 Answers

Electrical power system service required.....ABS warning light, generator warning light, brake failure...car stalled and wont't restart


usually caused by failed generator. Fix the generator and other lights will also extinguish. The car should jump start, but will not stay running without a charged battery. Recommend removing the generator and take to parts store for testing. Would you like instructions for removing generator?

Oct 17, 2010 | 2001 Volvo V70

1 Answer

Brake failure urgent , abs light, low battery


So many lame responses...I went through this same experience and can tell you in my case it was the alternator. All of the warning lights such as the ABS light, airbag light, the warning about the brakes are all because the alternator is not providing the DC voltage all of the car's sophisticated electronics need to correctly monitor these subsystems' status. Mine left me high and dry by the side of Interstate 5 needing a tow. The low battery warning was off and on for about an hour before all of the other warning lights came on, and then about 5 minutes later every needle on the dash went to zero and the car died. After sitting waiting for the tow, it did start up again, but we got it towed to a dealer (thank god it got us within 8 miles of a dealer! the first warnings started when we were in the sticks) who diagnosed it as an alternator. $1200 and two days later and all is well again.

Apr 16, 2010 | 2001 Volvo S60

1 Answer

Message system reads "engine system maintenance required"


WHAT HAPPENED IS WHEN YOU SHUT DOWN AND RESTARTED YOU (RESET THE ENGINE MANAGEMENT COMPUTER) AND THE SERVICE LIGHT SHOULD GO OUT AFTER 10 MINUTES OF DRIVING

Mar 16, 2009 | 2003 Volvo S40

1 Answer

Emission System Warning Light Showing & Regular Service Message


the 1st thing to do is find out which of the over 125 trouble codes is stored in the computers memory, go to any Kragen or Autozone they will test the system for free.

Feb 27, 2009 | 2002 Volvo S80

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