XK / XKR ( X150 ) 2006 - 2014

2007 Jag XK P1368 & P1367 Won't Start

 
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Old 08-10-2018, 11:08 AM
FHP
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Default 2007 Jag XK P1368 & P1367 Won't Start

I have a 2007 Xk with 43K mileage. I changed the battery about one month ago. Everything has been fine. Saturday I drove to a wedding and afterwards it would not start. The dash displays Engine System Fault. I got it home and pulled the codes and I had three. P1368, P1367, and U0151. I have had my air bag light on for some time which is what I believe code U0151 is telling me. Be the new codes are P1367&68. Does this mean my ECU is bad. Any help would be appreciated or direct me to a previous post. I have search and not found a lot of info. Thanks
 
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Old 08-10-2018, 12:27 PM
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Check the battery voltage....should be >12.2v (engine off after sitting for 10 mins). The electrical system will not charge a new battery, it has to be charged with a charger first. Once fully charged, and if not driven regularly, it is advisable to keep it topped off with a maintainer such as a CTEK 4.3. There are many threads on the subject that explain why.
 
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Old 08-10-2018, 01:40 PM
FHP
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I have a charger on the battery all the time in the garage. Voltage stays at or above 12.4. Engine will turn over fine just won’t start.
 
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Old 08-10-2018, 02:43 PM
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Last suspect of all is the "ECU".

A good battery would be 12.6 so yours is near dead. Still may not be it but it's a big suspect.

Otherwise go back to basics for a petrol engine...
 
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Old 08-10-2018, 03:02 PM
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A "Hard Reset" sometimes sorts out gremlins. It's free and easy.
The 'easiest' way is to disconnect the negative battery cable from the battery and hold it to the positive cable for a few seconds. Then reinstall the cable.
 
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Old 08-10-2018, 04:21 PM
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Originally Posted by FHP View Post
I have a charger on the battery all the time in the garage. Voltage stays at or above 12.4. Engine will turn over fine just won’t start.
OK this is a different problem then what everyone is thinking. You say the engine turns over meaning the starter and battery are working but the engine won't fire up. Do you have a check engine light. Can you check to see what codes you have at the OBDII port.
 
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Old 08-10-2018, 04:34 PM
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The codes are P1367 and P1368.
 
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Old 08-10-2018, 04:35 PM
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Also the dash display states “Engine System Fault”.
 
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Old 08-10-2018, 04:45 PM
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Before swapping out parts, remove the battery from the vehicle and charge it overnight. After charging, it should have a minimum of 12.6 volts across the terminals for the vehicle to function correctly.
 
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Old 08-10-2018, 05:42 PM
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X150 S/M says ignition amp A+B...

I'm going with removing the battery cables and charge the danged thing overnight. Exactly what NBcCat suggests (for good reason)
 
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Old 08-10-2018, 06:22 PM
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Originally Posted by Ranchero50 View Post
X150 S/M says ignition amp A+B...

I'm going with removing the battery cables and charge the danged thing overnight. Exactly what NBcCat suggests (for good reason)
While he's got the cables off , just touch them together for 5 or 10 seconds as a reset.
 
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Old 08-23-2018, 02:55 PM
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I have taken both cables and the voltage is 12.91. I have touched the cables together for 30 seconds and nothing has changed. It still shows the “Engine System Fault”, it will turn over and sometimes start for about 10 seconds then die.

Any help or ideas are appreciated. I am thinking the ECm.
 
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Old 08-23-2018, 03:14 PM
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Yeah, that may be the next step. Since BOTH banks are involved, it would appear that the commonality would be the ECM.


- Faulty Ignition Amplifier
- Ignition Amplifier harness is open or shorted
- Ignition Amplifier circuit poor electrical connection
- Faulty Ignition Coil Relay
- Faulty Engine Control Module (ECM)
 

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Old 07-08-2019, 11:46 AM
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Hi,

How was this problem finished?

Sandor
 
 
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