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After replacing the battery and ECU in a Renault Laguna, ensure that all connections are secure and properly seated. You may need to reprogram the ECU using specialized diagnostic equipment to match it with the vehicle's key and immobilizer system. Once everything is connected, turn the ignition key to the "on" position without starting the engine to allow the ECU to initialize. Finally, attempt to start the engine; if it doesn't start, further diagnostics may be needed to check for any additional issues.
What else can I help you with?
When the battery in a Renault laguna goes flat does the imoblizer kick in and cause the car not to start?
well the batterys flat, so it won't start, with or without an imoblizer
How can you start your Renault Laguna after battery replacement?
After replacing the battery in your Renault Laguna, ensure the new battery is properly connected, with the positive terminal first followed by the negative terminal. Once connected, get inside the vehicle, insert the key into the ignition, and turn it to the "On" position without starting the engine to allow the electronics to reset. Then, turn the key to the "Start" position to crank the engine. If the car doesn't start immediately, wait a few moments and try again, ensuring all connections are secure.
How do you do an air conditioning reset on a Renault Laguna 2003?
To reset the air conditioning on a 2003 Renault Laguna, first, turn off the vehicle and disconnect the battery for about 10-15 minutes. This can help reset the system's electronic controls. After reconnecting the battery, start the car and turn on the air conditioning system to see if it functions properly. If issues persist, consulting a professional may be necessary.
No ignition lights and car wont even try too start when key card is entered on a Renault laguna II?
Your battery may be flat and could need recharging or replaced.
2005 Renault laguna 1.9 dci dash lights come on but won't start just clicks and won't quite fire is it the starter or maybe just the battery?
I also have a 2005 Laguna. And had the same problem.Turned out it was the battery.Charging it wasn't a solution.Changed it out and no more problems.
Where is the start motor located on a Renault Laguna 1999?
Starter i located on the back of the engine - between manifold and driveshaft.
Radio works doors lock and unlock but your Renault laguna will not start with key card?
If your Renault Laguna won't start with the key card despite the radio and door locks functioning, it may indicate a problem with the key card itself, such as a dead battery or a faulty transponder chip. Additionally, there could be an issue with the vehicle's immobilizer system, preventing it from recognizing the key card. Try using a spare key card if available, and if the problem persists, consult a professional mechanic or a Renault dealership for further diagnosis.
Why wont Renault laguna 19tdi start?
There are several potential reasons why a Renault Laguna 19 TDI might not start. Common issues include a dead battery, faulty starter motor, or problems with the fuel system, such as a clogged fuel filter or air in the fuel lines. Additionally, issues with the ignition system or engine sensors could prevent the engine from starting. It's best to perform a thorough diagnostic check to identify the specific problem.
My car is reading in km instead of miles after battery power loss ie not enough to start the engine but did so with jump leads the car in question is a Renault laguna 51 plate?
Km may be the default setting- should be correctable
How do you replace PCV valve on my Renault laguna 2 1.6 petrol year 2003?
To replace the PCV valve on your 2003 Renault Laguna 2 1.6 petrol, first ensure the engine is cool and disconnect the negative battery terminal. Locate the PCV valve, which is typically situated on the valve cover; disconnect the hoses attached to it. Remove the old valve by twisting or pulling it out, then install the new valve, reconnect the hoses, and secure everything in place. Finally, reconnect the battery and start the engine to check for proper operation.
How do you fix an immobilizer on a Renault laguna?
Try disconnecting battery for a minute or so and then try to start your car. I had the same problem on my 1999 1.9 dti. Or some of the older lagunas had little black thing beside sunroof, try to lock and unlock the car with remote and try to star your car then. Had this problem wiht 1995 1.8 laguna...
How do you take the Renault laguna key card apart to fix it?
To take apart a Renault Laguna key card, start by using a small flat-head screwdriver to gently pry open the seam along the edge of the card. Carefully work your way around to avoid damaging the casing. Once opened, you can access the internal components, including the battery, which can be replaced if necessary. Reassemble the card by snapping the two halves back together securely.
