Home VolvoCEM-1A62 Volvo DTC CEM-1A62 Make: Volvo Code: CEM-1A62 Definition: Communication With The Engine Control Module (ECM). Signal Missing Description: The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that communication with the engine control module (ECM) is not operating.

2014年6月18日 · My local volvo mechanic (been in the business for more than 20 years) does not understand what is this problem... just read this post: http://forums.t5d5.org/topic/23565-majo ... #82081a62= it seems that his issue was fixed by swapping the starter and engine relays

2014年6月18日 · My local volvo mechanic (been in the business for more than 20 years) does not understand what is this problem... "By swapping the engine relay and starter relay over in the engine bay fuse box - MA1 and MA3, the dash messages have gone at IGN II and it has started first time!" not sure if this applies to my situation though...

2010年6月11日 · The CEM-1A62 is a nice code, this code says that there's a problem with communication between the CEM and the ECM, but the problem isn't in the CEM. That leaves wiring issues (anywhere in the system that isn't a module counts as a wiring issue). Here's VOLVO's note on the code : Note!

2019年2月23日 · Just got a Volvo reader and found these codes: CEM-1A5D, CEM-1A62, CEM-1C01. Looks like I've got a Central Electronic Module problem but don't know how to diagnose whether it's a problem internal to the module or an electrical/contact issue.

I'm looking for diagnostic information on a 2001 Volvo S80. I have multiple codes from the Central Electronics Module.

Detailed repair manual for the 2001 Volvo S60 2.4T L5-2.4L Turbo VIN 58 B5244T3.

as of now the car only has code cem1a62 that will not erase. also the car won't start. Try unplugging and replugging the control units to reset them, then do a battery reset by disconnecting the positive and negative and touching them together for a few minutes.

2014年3月28日 · VIDA shows fault CEM-1A62 - "communication with ECM missing". Volvo (VIDA) suggests for troubleshooting to check for battery voltage present at ECM and check for faulty ground - then check network cabling.

Customer: Volvo v70xc 2001 hart to start when hot trouble 1a62 communication ecm module signal missing. Good afternoon, this is likely the ECM is faulty or you have a broken wire. In order to properly test it we need what is called a breakout box. I am getting you all the pdf files to do it yourself. Hang tight.