Start Prevented Try Again 2005 Volvo Xc90

If your Volvo doesn't start, don't panic. Take a look at several tips that volition help yous first your Volvo once more or help you narrow down the problem.

What does Volvo Immobilizer See Manual hateful?

volvo immobilizer see manual

Immobilizer See manual fault message on the dashboard means your Volvo does not recognize the key, and therefore it will not allow you to start the engine. The problem could be caused by many issues, including a bad key, defective ignition, or faulty CEM Module.

If you are stranded in a parking lot, effort these tips as, in about cases, one of them volition assistance you start your Volvo. While sitting in the car, press the keyfob lock and unlock buttons v times. Now try to showtime your Volvo. If the start tip didn't work, become out of the auto. Lock the car. Press the Panic button on the key fob, and the alarm will go off. Press the unlock button. Enter the motorcar and starting time the engine. Turn the cardinal to position II and so off five times. On the sixth endeavor, endeavor to beginning the engine.

If none of these tips piece of work, follow the troubleshooting steps below.

Mutual Causes

Let'south accept a look at some of the nearly common problems that prevent a Volvo from starting and trigger Immobilizer error messages.

Central Electronic Module

If your Volvo won't start, and y'all are getting an Immobilizer message, plus your Volvo is acting strangely and is displaying several random letters such as ABS, Airbag, Steering failure, the chances are that the Central Electronic Module (CEM) module is the culprit.

These units are known to fail. Some other possibility is that one of the wire harnesses to the CEM module is loose. Yous tin verify this past ensuring that the wire harnesses to the CEM under the dashboard are not loose.

Unrecognized Central

Your Volvo key is not being recognized. This could be due to an upshot with the immobilizer or a key that is damaged.

Ignition Antenna Ring

The slot where you insert your Volvo key has a ring. Within that, there is a wire loop that serves as the antenna. When the antenna fails, your Volvo key will no longer exist recognized when inserted into the ignition.

Low Battery Voltage

The car battery is partially discharged, in which case there is non plenty charge to power up all the modules. This is ofttimes when the dashboard lights turn on, merely y'all tin can't commencement the engine.

You can utilize a Battery Charger to charge your Volvo battery or become back on the road to bound-offset your Volvo.

Troubleshooting a Volvo that won't start

Attempt starting the car with the shifter in a Neutral position. If that doesn't work, movement the shifter back in Park and try again. If the machine does start with the shifter in Neutral, the shifter module or Park Neutral switch could be the culprit.
Disconnect the negative battery terminal for at to the lowest degree 5 minutes. Reconnect the battery. Press unlock on your Volvo remote. Insert primal in the ignition and try to start the engine.
Cycle the key to Position II (don't starting time the engine) 5 times. On the sixth fourth dimension, endeavor starting the engine.
Remove Engine Control Module fuse. If the immobilizer is activated, but it shouldn't, you can reset information technology by disconnecting power to the Engine Control Module. Look at the fuse box in the engine bay or side of the dashboard. Detect the fuse that says Engine Control Module (ECM) and unplug information technology for at least 5 min. Reconnect it and attempt to start the engine.
Nether the dashboard on the driver's or passenger'due south side, you have the Control Electronic Module (CEM). Cheque the CEM terminals for corrosion.The CEM wire harnesses can get loose, especially if you lot hitting a pothole or drive on bumpy city roads. Check the wire harnesses and ensure none of them are loose.
The problem may be the key itself. If you lot recently dropped your key or got it wet, your Volvo may no longer recognize it. What you can do to rule out a bad key is to try the spare key and see if that starts the car.
Bank check the machine battery voltage with a digital multimeter. Just because the dash lights plough on, it doesn't team the bombardment is ruled out. The bombardment could be partially discharged. The remaining charge on the battery could be enough to power up the dashboard lights, which are LED and don't crave much power. The bombardment charge may non exist sufficient to power upwards all the modules. To rule out a bad battery, try bound-starting your Volvo with a jump box. Or follow these instructions to charge a Volvo battery using a motorcar battery charger.
The alarm siren is known to fail besides. The easy way to test this is to roll down the driver's window, close the door, lock the car with the keyfob. This will arm the car. While the doors are locked, open the driver's door by pulling the handle inside the car through the open window. This should trigger the alarm to go off. Your lights should wink equally well. If none of that happened, then the chances are that the alert system is bad. When your Volvo alarm fails, it sets fault codes related to the immobilizer, which can disable the engine commencement.
Now we are starting to run out of options. The adjacent logical step is to diagnose your auto with a scanner that can read Volvo-specific fault codes.One option is to tow your Volvo to a good mechanic or the dealer, which tin be quite expensive in about cases. You may want to consider getting a Volvo scanner and read the error codes yourself. These scanners let you lot to perform a full arrangement scan, which means they can read and articulate codes from all the modules. In most cases, a mistake code will be stored in the ignition module, which in almost cases, is enough data to figure out why your Volvo won't beginning.