I am on vacation at the moment, and writting thus on a mobile phone with very dodgy signal, so please bear with any mistakes.
My 2011 JGC 3.0CRD Limited (UK spec) has decided to throw a fit. A few weeks back, sitting in heavy traffic, the sort where you move a cars lenght, stop for 30 seconds, then move another cars length, I heard the engine fan come on, and noticed for the first time the engine temp had actually risen to the half way point. My car seems to normally only sit about a third of the way up the guage. After about 1/2 an hour of this traffic, there was a chime and the red battery symbol came up on the dash. I have fitted a voltmeter to the car, so checked that, but it displayed the normal 14.2volt. The traffic cleared, and as soon as the temp dropped the light went out. It did it once more a bit later in a second smaller jam, and again cleared as soon as I got moving.
I got home, and checked the cables as well as I could on the alternator, and also checked the battery connections. My volt meter is connected straight to the battery terminals, so I know I am reading the voltage at the battery, and reading 14.2 volts tells me the alternator is still working
Drove for a few weeks, and there was no repeat, also no major traffic jams.
Purchased BlueDriver app, which arrived the day before I was going on vaccation towing our 2 ton caravan. Connected it up and had a look, but there were a few codes showing and I had no idea how long they had been there, so I decided the best thing was to clear them and start from scratch.
Onca again, on the motorway, but this time towing the caravan I got caught in traffic, and again the temp rose a bit, then the ping, and the battery light. Again as soon as I got moving it cleared. It did it once more while we were crawling down some very narrow lanes. This time I had the BlueDriver app running, and was watching the volts, which remained constant at 14.2 volts on both my meter and the app.
When I stopped, I read the codes, and had a few, but the most notable was "U0120-00: Lost Communication With Starter/Generator Control Module". There are a couple more, but it's hard to cut and paste on the phone, and I don't think they are related.
Cleared the codes again, and the vacation has been great, with the car behaving... until today. Today driving solo round the very thin Welsh roads dight sering, and suddenly there was the dreaded ping and read battery symbol. Today though it was like a pinball game, pinging multiple times, sometimes leaving the light on, sometimes clearing almost straight away. Still the voltages were constant at 14.2volt. This went on for quite some time, then stopped again, with no further occurrences for the remainder of our day out. My wife commented that it almost seemed to be related to the roughness of the road.
Anyone have any clues where to look? Where is the "Starter/Generator Control Module" is located so I can look for a loose connection?
Sent from my SM-T705 using Tapatalk
My 2011 JGC 3.0CRD Limited (UK spec) has decided to throw a fit. A few weeks back, sitting in heavy traffic, the sort where you move a cars lenght, stop for 30 seconds, then move another cars length, I heard the engine fan come on, and noticed for the first time the engine temp had actually risen to the half way point. My car seems to normally only sit about a third of the way up the guage. After about 1/2 an hour of this traffic, there was a chime and the red battery symbol came up on the dash. I have fitted a voltmeter to the car, so checked that, but it displayed the normal 14.2volt. The traffic cleared, and as soon as the temp dropped the light went out. It did it once more a bit later in a second smaller jam, and again cleared as soon as I got moving.
I got home, and checked the cables as well as I could on the alternator, and also checked the battery connections. My volt meter is connected straight to the battery terminals, so I know I am reading the voltage at the battery, and reading 14.2 volts tells me the alternator is still working
Drove for a few weeks, and there was no repeat, also no major traffic jams.
Purchased BlueDriver app, which arrived the day before I was going on vaccation towing our 2 ton caravan. Connected it up and had a look, but there were a few codes showing and I had no idea how long they had been there, so I decided the best thing was to clear them and start from scratch.
Onca again, on the motorway, but this time towing the caravan I got caught in traffic, and again the temp rose a bit, then the ping, and the battery light. Again as soon as I got moving it cleared. It did it once more while we were crawling down some very narrow lanes. This time I had the BlueDriver app running, and was watching the volts, which remained constant at 14.2 volts on both my meter and the app.
When I stopped, I read the codes, and had a few, but the most notable was "U0120-00: Lost Communication With Starter/Generator Control Module". There are a couple more, but it's hard to cut and paste on the phone, and I don't think they are related.
Cleared the codes again, and the vacation has been great, with the car behaving... until today. Today driving solo round the very thin Welsh roads dight sering, and suddenly there was the dreaded ping and read battery symbol. Today though it was like a pinball game, pinging multiple times, sometimes leaving the light on, sometimes clearing almost straight away. Still the voltages were constant at 14.2volt. This went on for quite some time, then stopped again, with no further occurrences for the remainder of our day out. My wife commented that it almost seemed to be related to the roughness of the road.
Anyone have any clues where to look? Where is the "Starter/Generator Control Module" is located so I can look for a loose connection?
Sent from my SM-T705 using Tapatalk
