Having problems with your 2000 Volvo S40 ?

DTC code-P1618 = fault in lead between aw 50-52 and motronic 4.3. what does this mean and were is it on the car . its a vovlo s 40 year 2000, made 09/99 motor is 1.9 gas auto trans

Posted / edited by AnonymousUser on : 20-08-2018

Answers :

Aw50-52 is the transmission. motronic is the fuel system. it means the two modules are not communicating with each other.you will need a pinout diagram for these modules and go from there.its difficult to remove computers on late volvos without the speciall tool.furthermore getting an acurate diagram other than a volvo service manuel [paper service manuels were discontinued in 2000].will be near impossible. in this case it makes sense to bring to the dealer.
I have a 2001 KIA Carnival, the OEM automatic transmission is Hyundai F4A51 and I would like to change to Aisin AW 50-40 LE automatic transmission and I undertans I need to change some hiposynetic coupling, but I will like to know the following:
1.- Is it the same coupling with the engine?
2.- What is the wiring diagram aplicable?
3.- Is the same PCM transmission?
Luis Borjas, Venezuela
Repair Help & Product Troubleshooting for 2000 Volvo S40

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