Where is the stop start module?

OConnors · Jul 31, 2021

Hi. A few years back we had a California on which the battery used to go randomly and instantly flat. Drive for 100 miles. Park for and hour, flat. Fine for two weeks then the same again. After much investigation by the dealer, even the service manager drove it for a week until it happened to him. They concluded the fault was caused by the “stop start module”. They changed it and there was never a problem again. We now have the same symptoms on another 2017 van so I am tempted to change the module myself assuming it is simple rather than book in to dealer and all the hassle that ensues. Where is the module and what does it look like? Anybody know. Is it a plug in piece of electronics? Thanks in advance.

Aidy P · Jul 31, 2021

Im not sure but I believe it is located under the passenger seat. I can hear mine clicking when it stops and starts

Alan Andrews · Jul 31, 2021

A quick search on ebay will provide a photo of what you are looking for. Will make looking under the seat so much easier.

ArcticMatt · Jul 31, 2021

Never seen a stop / start module on a T4 cali before

mrcheesbrough · Jul 31, 2021

Looks like one for the T5/T6 section to me.

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Ozzy Pete · Jul 31, 2021

OConnors said:
Hi. A few years back we had a California on which the battery used to go randomly and instantly flat. Drive for 100 miles. Park for and hour, flat. Fine for two weeks then the same again. After much investigation by the dealer, even the service manager drove it for a week until it happened to him. They concluded the fault was caused by the “stop start module”. They changed it and there was never a problem again. We now have the same symptoms on another 2017 van so I am tempted to change the module myself assuming it is simple rather than book in to dealer and all the hassle that ensues. Where is the module and what does it look like? Anybody know. Is it a plug in piece of electronics? Thanks in advance.

Have you checked this by plugging in an OBD2 reader. This should give you a definite answer if the stop/start module is faulty.