13 Pin Socket Wiring
On my 13 pin socket pin number 10 for powering the fridge is energised when the ignition is turned on without starting the engine. On previous cars the fridge was not energised until the engine was running. I have queried this with the towbar installer (a
professional and accredited company) whose answer is pin 10 is ignition controlled because it is a dedicated wiring loom specific to my make and model of car. I am not convinced this is correct as it means the fridge is drawing power from the car battery before
and while starting the car. Has anyone else come across this.
Comments
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Hi Mollysmummy thanks for your reply. I guess now that I am aware I will limit the time I have the ignition on without the engine running eg when checking the lights on the caravan.
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I've just had my Mondeo wired up with a dedicated wiring loom. Part of the kit is a voltage control module connected to pin 10 for the fridge. This is not live until the car's voltage output is 13.4 volts or above. But, if the engine is turned off, pin 10
remains live until the battery voltage drops to approxiumately 12.7 volts0 -
Vehicles fitted with these infuriating engine stop/start systems to save seconds of emissions seem to support heated seats, heated screens, fan motors, main beam and goodness knows what else while the engine is stopped. Perhaps a fridge motor is insignificant
amongs the other loads.0 -
Vehicles fitted with these infuriating engine stop/start systems to save seconds of emissions seem to support heated seats, heated screens, fan motors, main beam and goodness knows what else while the engine is stopped. Perhaps a fridge motor is insignificant
amongs the other loads.good point but on my car if the engine is in stop mode for any length of time it automatically starts up. There must be some sensor monitoring the battery condition.
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It all depends on the manufacturer ( the problem with using a charge sensing relay on a modern vehicle with a smart charging system is that once the vehicle battery has enough charge the vehicle charging systems reduce output and not enough voltage is
generated to activate the relay)if you are worried your battery will go flat while the vehicle is stopped on your stop start system then dont be, as the stop start systems are voltage sensitive and will restart the engine as soon as the voltage drops
below a pre set level.However it is relatively easy to fit a voltage sensing relay inline to the fridge supply these only operate and allow current to pass once a pre set voltage level is reached.
Jeffcc LAE MIMI
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Thanks all for your replies. for info pin 10 voltage is zero with ignition off and 12 to 13 volts with ignition on then 13 to 14 volts when engine is running. The car is a 15 reg Skoda Yeti Outdoor model it is manual and does not have stop start.
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Stop/start cars have sensors that sense all sorts of variables connected to the stop/start system. If it senses the battery is low the car will keep running, if it has stopped the engine and the battery voltage drops to a certain level the car will start
again. On my car, an MY15 Volvo V70, the car will start up after 5 minutes regardless of battery voltage.I wouldn't add a relay into a dedicated wiring system.
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