2011 suzuki kizashi viper 5704 issues

I installed a customer supplied viper 5704 along with an ads-al-ca into his Suzuki kizashi. I hoping someone has some Insite in what else I can do. Here's my problem the car starts 90% of the time. The problem I see is the way idata has you set up the system your using the starter output to power up the brake lights for the car to start. I've tried tach and the car won't run at all. Add of right now I have it on virtual tach set to 4 seconds. This way it keeps the brakes on for 4 seconds. Most of the time it works but on cold mornings the car takes a little longer to start and the 4 seconds isn't enough because there is a delay from when the brake lights come on the when the car starts. This delay causes the issue if the car has started to crank then the brake lights shut off the car stops cranking and puts the car in a state to where neither the factory fob or the viper for can be used ,also keep the ingition on the customer has to use the key in the door then press the start button to turn off the ingition. Sorry for the ramble just trying to give as much info as possibleIf i Can't Install it    I Don't need it   Joe

On the iDatalink Tech Forums, other installers have had issues with timing on this car. The crank signal has to be sent just right while the brake wire is being energized otherwise it won't work. Go W2W with all connections from the Viper (including tach) to the module. Set the Viper for tach setting and relearn tach and extend the crank time to the highest time.

I'm w2w with all my connections including tach relearned it 3 times different RPMs doesn't even try too crank when set to tach. I set it to virtual and the longest crank time 4 seconds still having these issuesIf i Can't Install it    I Don't need it   Joe

If you have access to the iDatalink support forums, I would post on there to see what they suggest. I can only suggest to double check the connections to the vehicle, ensuring the diodes are installed and in the right direction. I've not worked the vehicle personally. But others that have (including iDatalink tech support), states it's a timing issue and voltage sensing is not recommended.

I was on the phone with tech support and they suggested I check the firmware make sure there was no updates which I did and there were none. They also suggested relearning tach to a higher rpm which I did. I'm going to call them back again. Was hoping someone on here had a suggestion I could try.If i Can't Install it    I Don't need it   Joe

did you try engine checking off ?Advanced

I've never done one of these cars, but what about trying a short Wait to start delay. That would give the ignition time to fully energize the circuit & activate the BCM which could possibly allow the brake timing to be better. It's probably a complete shot in the dark, but it might be worth a try.Kenny

Owner / Technician

KKD Garage LLC

Albany, NY 12205

I haven't shut the engine checking off for 2 reasons 1. I don't like doing it 2. I don't think it will help because it will still only output the 4 second crank. Its the car that stops cranking when the brake lights shut off. I could try the wait to start see what it does. I have a bit writer coming to see of there's any options that will help me out. Been meaning to buy one anyway this just have me the nudge to buy. I do enough starters to justify it.If i Can't Install it    I Don't need it   Joe

I understand what you mean by not a fan of turning off engine checking but this isn't the usual install. I am by no means a pts expert but just stating what worked for me on the last kizashi. Between the bypass and the r/s we are only holding the brake and pushing the pts button which then means the car is going to do what it always does as long as it sees the key.Advanced

how did you set it up ? 4 second crank and engine checking off ?If i Can't Install it    I Don't need it   Joe