Posted December 7, 2013. Failsafe is generally known as an emergency running mode that the car is placed in to enable you to get to a garage albeit, at a reduced engine power output. There could be many reasons for it going into 'Limphome Mode' and it can only really be efficiently diagnosed by using a scan tool. jaguar radio code - how to get the jaguar radio code? jaguar radio codes . different car radio models require differently shaped removal keys.🚗 jaguar x t If you have lost your Jaguar Radio Security Code then you are only a few clicks away from obtaining your code number via our Automated Servers. Affectionately known as Jag, it matters not to us. Whether you drive a Jaguar S-Type, X300, XJ6, XJ12, XJ40, XJ Series, XK8 or X-Type, we can certainly help you with your Jaguar Radio Security Code Number. To: s-type@jag-lovers.org. Sent: Friday, November 03, 2006 6:47 AM. Subject: [s-type] Failsafe Engine Mode. Driving along this came up with the amber light with limited engine. speed. Drives fine. Not displaying it any longer but still limited. speed. There are no DTCs and the MIL light is OFF (so nothing to. 780 Answers. Sounds like an issue with the car's immobiliser. In order to prevent theft by disconnecting the alarm system when the power is cut the immobiliser is programmed to interrupt the car restart when power resumed. You will need to reset the alarm code. Posted on Jul 04, 2010. The Bypass code only worked on the S type, X Type and X350 XJ which share the same radio system . For many people, this simple key-press procedure will work, depending on the manufacture date of the CD/Radio headunit. Press >> PTY and A.MEM on the radio simultaneously and hold for a second or two. The radio should burst into life. 1990-92 XJ6 cars. 1. Record radio security code (if so equipped). 2. Disconnect negative battery terminal/cable. 3. Reconnect negative battery terminal/cable; "beeping" should be heard. 4. Press each transmitter so a total of 5 confirmations are heard. PO171 + PO174. 20. Asked by Dragana Jan 16, 2015 at 03:14 PM about the 2004 Jaguar X-TYPE 3.0L AWD. Question type: Maintenance & Repair. Hi everyone. I went for my inspection today and couldn't pass as the engine light came up. PO171 + PO174. Seems to be vacuum leak. PMqeI6.