Volvo Immobilizer See Manual Problem

If your Volvo doesn't start, don't panic. Take a look at several tips that will help you start your Volvo again or help you narrow down the problem.

What does Volvo Immobilizer See Manual mean?

Immobilizer See manual error 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 none of these tips work, follow the troubleshooting steps below.

Common Causes

Let's take a look at some of the most common problems that prevent a Volvo from starting and trigger Immobilizer error messages.

Central Electronic Module

If your Volvo won't start, and you are getting an Immobilizer message, plus your Volvo is acting strangely and is displaying several random messages 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. Another possibility is that one of the wire harnesses to the CEM module is loose. You can verify this by ensuring that the wire harnesses to the CEM under the dashboard are not loose.

Unrecognized Key

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

Ignition Antenna Ring

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

Low Battery Voltage

The car battery is partially discharged, in which case there is not enough charge to power up all the modules. This is often when the dashboard lights turn on, but you can't start the engine.

You can use a Battery Charger to charge your Volvo battery or get back on the road to jump-start your Volvo.

Troubleshooting a Volvo that won't start

1. Try starting the car with the shifter in a Neutral position. If that doesn't work, move the shifter back in Park and try again. If the car does start with the shifter in Neutral, the shifter module or Park Neutral switch could be the culprit.
2. Disconnect the negative battery terminal for at least 5 minutes. Reconnect the battery. Press unlock on your Volvo remote. Insert key in the ignition and try to start the engine.
3. Cycle the key to Position II (don't start the engine) five times. On the sixth time, try starting the engine.
4. Remove Engine Control Module fuse. If the immobilizer is activated, but it shouldn't, you can reset it by disconnecting power to the Engine Control Module. Look at the fuse box in the engine bay or side of the dashboard. Find the fuse that says Engine Control Module (ECM) and unplug it for at least 5 min. Reconnect it and try to start the engine.
5. Under the dashboard on the driver's or passenger's side, you have the Control Electronic Module (CEM). Check the CEM terminals for corrosion.The CEM wire harnesses can get loose, especially if you hit a pothole or drive on bumpy city roads. Check the wire harnesses and ensure none of them are loose.
6. The problem may be the key itself. If you 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.
7. Check the car battery voltage with a digital multimeter. Just because the dash lights turn on, it doesn't team the battery is ruled out. The battery 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 require much power. The battery charge may not be sufficient to power up all the modules. To rule out a bad battery, try jump-starting your Volvo with a jump box. Or follow these instructions to charge a Volvo battery using a car battery charger.
8. The alarm siren is known to fail as well. 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 flash as well. If none of that happened, then the chances are that the alarm system is bad. When your Volvo alarm fails, it sets fault codes related to the immobilizer, which can disable the engine start.
9. Now we are starting to run out of options. The next logical step is to diagnose your car 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 can be quite expensive in most cases. You may want to consider getting a Volvo scanner and read the fault codes yourself. These scanners allow you to perform a full system scan, which means they can read and clear codes from all the modules. In most cases, a fault code will be stored in the ignition module, which in most cases, is enough information to figure out why your Volvo won't start.

This problem affects many models, including XC70, V70, S60, S40, V40, V50, XC60, XC90, S60, S70, S80, C30.

Symptoms

• Volvo won't start
• Immobilizer See Manual Error
• Brake failure Stop Safely
• Cranks but wouldn't start
• Check engine light on P1670 P1671 P1672
• Alarm system service required
• Start disabled. Try again

Frequently Asked Questions