K-Can Line Fault Bmw E604/8/2021
The K-CAN, a 2-wire bus, connects the instrument cluster, climate control (IHKA), airbags (SRS), lighting system and tire pressure control.A failure in the K-CAN may cause malfunctions in the warnings lights or control modules for any of those system.
The technical will notice a slew of K-CAN faults in the vehicle. NOTE: The best tool for checking bus systems is an oscilloscope. Check for any obvious issues like to water damage to control units logging K-CAN faults. Disconnect all modules successively (except the Gateway and CAS will need to be swapped from another vehicle). If you still have no communication on K-CAN, test the wiring harness for short to B or B-. If several modules show K-CAN faults, check the K-CAN system. A volt meter is only a quick check and not a definitive diagnostic tool. Check voltages on K-CAN wires when disconnecting the modules. ![]() E70 BMW X5 water ingress into trunk. E70 BMW X5 wiring damages against seat rails. E70 BMW X5 damaged wiring on the 3rd row seats. E70 BMW X5 rear view camera not working. Damaged wiring around the rear fuse box. E70 BMW X5 corrosion in right rear of the trunk. Splice X15005 X15006 -E87 BMW 1 Series damaged wiring rubbed through the metal dashboard frame. E87 BMW 1 Series damaged wiring at the IHKA module. K-Can Line Fault Bmw E60 Full Of WaterE87 BMW 1 Series PDC module full of water. E909293 BMW 3 Series damaged wiring under the rear seats. E909293 BMW 3 Series water ingress into trunk. Damaged modules. -E92 BMW M3 damaged wiring under center console causing a battery drain. E82 BMW 1 Series damaged wiring rubbing through parking brake mechanism. E88 BMW 1 Series multiple warnings on dashboard, K-CAN Low.
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