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This is a good idea, some modern cars need to be told the battery has been replaced and then the alternator ecu is reset.
L322 Diesel V8 3.6 2008 Battery is over charging
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Unless your alternator is faulty....
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How was it tested?
If it's not a smart alternator and a start/stop battery and it's giving out more volts than it should, there must be something wrong with it?
A regular alternator shouldn't give out more than design, ie. 14.7v
If it's not a smart alternator and a start/stop battery and it's giving out more volts than it should, there must be something wrong with it?
A regular alternator shouldn't give out more than design, ie. 14.7v
Datatek
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The trouble is that the output is controlled by an external ECU to give an initial fast charge to allow for the school run.
The problem seems to be that the command for high output is staying on when it should be off so the feedback circuit that monitors the battery/alternator is faulty. As the alternator and the ECU have been replaced, it's going to come down to a bad connection or broken wire somewhere, where I know not without detailed schematics.
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I thought we'd determined it wasnt ecu controlled on this car.. i should keep up lolThe trouble is that the output is controlled by an external ECU to give an initial fast charge to allow for the school run.
Datatek
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See post #1.
tomcat59alan
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i had assumed that was an assumption, not a fact
looking at RAVE for the L322;
The integrated regulator controls the output voltage from the alternator to prevent the battery from being overcharged
and to prevent the vehicle electrical systems from excessive voltage. The regulator, which is temperature related to
optimise battery charging, sets the maximum output voltage to a nominal 14.5V and varies the output voltage
depending on the state of charge of the battery and the loads required by the vehicle electrical systems.
Datatek
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That's for the L322 which has a pretty normal regulator but as far as I'm aware the OP is not talking about an L322. Certainly his references to a control module and command lines infer that it's something other thna an L322.
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It's in the L322 section lol
Datatek
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So it is, so maybe the OP is confused. either way it's likely to come down to a bad earth or bad connection.
biketeacherdave
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Lead acid or agm battery ?
Datatek
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or GEL
biketeacherdave
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Well you have the correct battery fitted , it does not require the battery reset that's 2010 onwards.
I would like ask owners L322 for check what Command duty cycle are from engnine control module to generator at engnie idle after few minutes. It can be check by OBD diagnostic tools or direct in wire by oscilosloscope ( multimeter with duty cycle measurment).I want compare.
Datatek
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If the system is smart, it will vary depending on battery state, atmospheric temperature, battery temperature and alternator temperature.
