mochoukri

Fuse box near brake master cylinder checked. All ok...

Ok Wvicary, i have checked the fuses one by one of both fuse boxes. They all seem ok...

@Wvicary No i didn't. You mean the fuse box inside on the left hand side of the steering wheel, right?

ok guys, i have unplugged the connections of both fans. Did a reset with durametric but the error codes of fan and MAF still show up. I am desperate know. Suggestions??? DME module maybe?? if yes, how to access/check??

Goodmorning Guys, i have replaced the brake switch sensor and the brake switch error is gone now. Still remaining are the MAF and fan 2. Yesterday i have reached the fan connectors but what b***tches to unplug them. I didn't succeed in unplugging the connection. Someone whone knows how exactly to unplug them?? Thanks mo

Dear Loren, hahnmgh63 and wvicary, it is easy to find the connections for the Mass Air Flow Meters. But where are the connections situated for the Fans and the Brake Switch? Can someone please explain me how to access. Your input is highly appreciated. thanks Mo

Battery was replaced 10 months ago. By now the connections shoumd be dry,but maybe corrossion ocurred. I will check the connection plugs and try to reset the faults and see what happens. The connection pkugs for the afm are easy to find.how about the other plugs?where are they located and hiw to access?

Dear loren, Many thanks for your quick reply. It is a porsche cayenne s - 2004- 4.5 v8. You gave me some possible causes.is there a tutorial available on how to measure/check the causes?or can you explain to me? Thanks a lot. Regards, Mo

Dear all, before i started this post i have searched through the topics but couldn't find any relevant info/solution for my problem. Let's start from the beginning. A couple of weeks ago, i took my car to the car wash. The dude at the car wash used high pressurized water to clean the engine. After the wash the psm failure signal came up and the car went into limp mode. I guess some water messed up the electronics of the car. With durametric i made a diagnose and 3 errors showed up: - P0481 Description: Fan 2 Control Circuit - P0103 Description: Mass or Volume Air Flow Circuit = P0571 Description: Brake Switch A Circuit After resetting the errors, the rpm goes to zero after starting the engine, so engine goes dead. When i prevent the rpm going to zero by pushing the gas pedal, the psm failure shows up again and rpm doesn't drop to zero anymore. So i am completely confused. Is someone familiar with this problem? Any tips are welcome. Thanks in advance the log sheet is as following: USB Hardware Present Device is present but not plugged into the car. USB Hardware Present All Porsche Models Selected Device is plugged into car and ready Cayenne Selected Cayenne DME Selected About to get fault codes moduleType = CayMotronicDME71 dtcCount = 3 Fault Number: P0481 Description: Fan 2 Control Circuit dtcCount = 3 Fault Number: P0103 Description: Mass or Volume Air Flow Circuit dtcCount = 3 Fault Number: P0571 Description: Brake Switch A Circuit Cayenne Tiptronic Selected About to get fault codes moduleType = CayTiptronic dtcCount = 1 Fault Number: 1314 Description: DME control module Cayenne Airbag Selected About to get fault codes moduleType = CayAirbag dtcCount = 1 Fault Number: 0 Description: Module failed to initialize Repair Infomation: Make sure the key is in the ON position. The vehicle may not have this option or there may be a wiring problem to the computer. This could also be a module that simply failed to respond. Cayenne Kessy Selected About to get fault codes moduleType = CayKessy dtcCount = 1 Fault Number: 0 Description: Module failed to initialize Repair Infomation: Make sure the key is in the ON position. The vehicle may not have this option or there may be a wiring problem to the computer. This could also be a module that simply failed to respond. Cayenne Air Condtioning Selected About to get fault codes moduleType = CayHeating dtcCount = 1 Fault Number: 0 Description: Module failed to initialize Repair Infomation: Make sure the key is in the ON position. The vehicle may not have this option or there may be a wiring problem to the computer. This could also be a module that simply failed to respond. Cayenne Cluster Selected About to get fault codes moduleType = CayInstrumentCluster Cayenne PCM2 Selected About to get fault codes moduleType = CayPCM2 dtcCount = 1 Fault Number: 0 Description: Module failed to initialize Repair Infomation: Make sure the key is in the ON position. The vehicle may not have this option or there may be a wiring problem to the computer. This could also be a module that simply failed to respond. Cayenne Steering Column Switch Selected About to get fault codes moduleType = CaySteeringColumnSwitch dtcCount = 1 Fault Number: 0 Description: Module failed to initialize Repair Infomation: Make sure the key is in the ON position. The vehicle may not have this option or there may be a wiring problem to the computer. This could also be a module that simply failed to respond. Cayenne Wiper Selected About to get fault codes moduleType = CayWiper dtcCount = 1 Fault Number: 0 Description: Module failed to initialize