Chosen Solution
Sorry my bad English. I’ll try to explain a bug. I have a Grand Voyager 2006 3.3 limited (European). When the engine is idle sometimes a part of electronic stops working suddenly. Instrument panel (odometer is still on!), fog lights, electric slide doors and tailgate, Central lock and something else (can’t remember) but the same ones and all together. By the way the remote control of the “non-native” alarm continues to turn the central lock on and off! When the bug occurs I may start start the engine and the car goes without any other problems. This problem will not occur if I start the engine before. But if this happens I need to remove the terminal from the battery or pull out the fuse “IDO” for a few seconds or just close all doors manually (if open) and wait typically until the odometer is lit off and then everything restores itself. Problem occurs in any weather and its occurrence is unpredictable. Replacement of the BCM and FCM did not help. I need Your help! Thank you very much!
Remove the ecm connected to the side of the fuse panel in the engine compartment . Check for corossion on the pins use a spray electrical cleaner to clean the socket and the pins then before reassembling put dielectric gel on the contacts and pins to keep the corrosion from returning. Hope this helps