Get Over the Volvo XC90 Start Prevented Try Again Message!
Volvo XC90 start prevented try again message may indicate a potential issue with the system responsible for sending the starting signal. To pinpoint why your Volvo XC90 isn’t starting, focus on a few key components.
Mostly, the Volvo XC90 will not start with the “start prevented, try again” message due to key security system failure, disruptions to the key antenna or transponder chip, loose connections, problems with the immobilizer, and challenges related to the battery.
For the full insight, keep on reading…
The Top Causes Behind Volvo XC90 Start Prevention Try Again Error
Below, I am going to discuss 7 major causes that often lead to the start prevented, try again message in Volvo xc90.
XC90 May Fail To Start Due To Key Security System Failure
Encountering problems with the key security system can make the XC90 unresponsive when attempting to start. This is often accompanied by the discouraging Volvo message “Start prevented, try again”.
While not a commonly reported issue, it could be the case if you’re facing challenges with the key antenna or the key itself.
The key antenna plays a pivotal role in maintaining the communication between the key and the XC90’s security system. Now any disruption to this communication may result in triggering the message.
I recommend beginning your investigation by checking for any visible damage to the key antenna. You should also make sure no loose connections are interfering with the communication.
If the key antenna proves to be in working order, the next potential culprit is the key itself. The transponder chip within the key can wear out over time. It can also be damaged due to minor accidents.
When it comes to transponder damages, I get what the folks at US Key Service are saying.
They mention that, aside from a weak battery messing things up, the chip is pretty vulnerable to water and mechanical shocks. So, if your key takes a dive on a hard surface or, heaven forbid, gets wet, it could fry the transponder chip.
This could pose a perceived threat to the security system. So, it may prevent the engine from starting. This time too, you need to carefully inspect the xc90 key for any visible damage.
Keep in mind, that the security module serves as the brain behind the key security system. And that’s why if it detects any malfunctions or anomalies, it triggers the “Start Prevented” warning.
Addressing issues with this module requires professional handling. As there’s a need for some specialized tools to detect and resolve the problem.
Solutions To Try:
- For any key antenna or key-related problems, replacing the unit may be necessary.
- Security module issues require a visit to the service center or consultation with a specialized expert of your choice.
Error With Immobilizer Leading To XC90 Strat Prevention
Due to the Volvo xc90 immobilizer problem, you may come across the “Start prevented, try again” message as well. Now this calls for understanding exactly why is the Volvo having trouble starting because of the immobilizer.
The Volvo may have trouble starting due to the immobilizer failing to receive the signal from the key. A noticeable indicator is a dim ring around the ignition lock cylinder, demonstrating a signal-related problem.
Usually, possible causes include a damaged immobilizer antenna or the need for a software update to the latest immobilizer version. You should check the harness connections, especially if this is a Volvo XC90 2005 variant.
Particularly the part grounding to the engine block. Corrosion in these areas can disrupt the signal. Pay special attention to the front side of the engine below the manifold for potential corrosion issues affecting the signal.
For those who have recently used diagnostic tools or tinkered with electronic components, this could be a consequence. Such actions may trigger unwanted messages like the one we are discussing.
The immobilizer can also stop the engine from starting if it detects irregularities. And it’s true for other Volvo models as well, for example when a V70 model dies right after start,
an immobilizer is the one to doubt. Especially due to power supply errors with the ECU.
Severe issues with the control unit can result in further complications such as a malfunctioning low beam bulb in xc90.
Solutions to Try:
- Replace the immobilizer antenna.
- Consider updating to the latest immobilizer software version to address underlying issues.
- Check and clean corroded areas to restore functionality.
- Reset the system if the immobilizer is preventing starting due to irregularities.
- For more precise detection and solutions, seeking professional help using the VIDA tool is recommended.
Battery-Related Issue Causing Starting Error in XC90
Another significant factor leading to the appearance of the “start prevented, try again” message could be a malfunctioning battery.
This applies to both the car battery and the key fob battery. A weak or depleted battery has the potential to trigger such warnings.
To confirm, try using both the primary and spare key fobs. Additionally, eliminate any non-Volvo key fobs, as they may interfere with the immobilizer and cause the problem.
Solutions To Try:
- Utilize the key fob to lock and unlock the Volvo.
- If the problem persists, consider replacing the weak or depleted battery.
If you still encounter the message after replacing the battery, there may be interference with the antenna or even an RFID signal mismatch. An indicative sign is attempting to turn the key or shift gears while facing the message.
This strongly suggests a potential sensor/antenna ring issue with the ignition switch. While replacing the key and antenna ring could be a plausible solution, it’s advisable to seek expert inspection for better resolution.
XC90 Starting Issue Due to Low Voltage Cranking and Computer Failure
The Volvo xc90 start prevented try again issue, particularly in 2006 or 2009 models, could be a result of computer failure. This is often caused by low voltage during cranking.
If you have tried to:
- Replace the battery.
- Replace the antenna ring.
- Used another key.
- Reset the system.
- Unlock/lock multiple times with the key remote for immobilizer reset.
Despite trying these options, if the problem lingers, it’s likely a computer malfunction from low voltage cranking.
A potential solution is reprogramming the computer. This could resolve the issue at a cost of less than $300 in most cases.
However, if the computer needs replacement, you’ll need to budget for a more substantial expense. And unfortunately, it is likely exceeding a thousand dollars.
Other Potential Causes for XC90 Start Prevention
- Worn-out Starter Motor: With general wear and frequent starts, the starter motor might fail after covering 100k to 150k miles. You may hear a clicking sound from the engine without any signs of starting. It’s likely due to starter motor issues. In such cases, a replacement is essential.
- Alternator Troubles: Although rare, after 200k to 300k miles, a declining alternator can disrupt electricity generation. This will result in a depleted battery and a failing radio in xc90. And it will trigger the start prevention error. Replacement of the faulty alternator is required to resolve this issue.
- Fuel Filter Blockage: The accumulation of debris in the fuel filter over time can affect fuel pressure. It may contribute to start prevention in the XC90. While cleaning may offer a temporary fix, replacing the filter provides a more lasting solution.
- Fuel Pump Malfunction: Leaks, contamination, and wear can cause the fuel pump to fail. This will interrupt the XC90’s startup. The most likely solution in such cases is to replace the fuel pump.
- Blown Fuse in the Starting Circuit: If the starting circuit has a blown fuse, it needs replacing to eliminate the start prevention error.
- Faulty Spark Plugs: Loose connections can lead to damaged spark plugs, initiating startup problems. Replacing the spark plugs and securing any loose connections is necessary to address this issue.
Here is a compiled list of Volvo fault codes that I have written down for you, which you can check for further reference.
Wrapping Up
And there you go! As you can see decoding the Volvo xc90 “start prevented, try again” message will require exploring quite a few potential troublemakers.
From key security issues to battery concerns, I have tried to keep this guide insightful by discussing each.
Also, spoiler alert, I am working on debugging more Volvo xc90 problems soon. Stay tuned for future guides.
