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I fail to understand your interpretation and reasoning as to how DICE(628) is directly connected to EHU(353) via DLC(445) connector when under normal operations, 445 is not occupied and there is nothing connected to it.
On all models, Tech2 connects to DICE through single wire/line K-Line through 445's pin 7 and taps in to I-Bus in DICE via pin 28. Later all 2008+ 9-5 models received CAN+/- pinouts to DLC pin 6 and pin 14 as more modules were added eg. TPMS and K-line was insufficient to carry out more data. Pin 6 and pin 14 on DLC connects directly to MIU where P-bus and I-bus can be tapped into through CAN +/- network.
Back to wiring diagram from my previous post. All I-bus communication including theft protection from/to DICE and EHU is accomplished through SID. Have a look for yourself, drawing E367D203... GN and WH or CAN network wires are used. I am only going by what electrical diagrams show me. SID communicates with EHU on single line through pin 1 on SID and pin 13 on EHU side.
All of the following modules (DICE), (TWICE), (SID), (EHU) as far as I know must have same VIN to work and have any communication.
FROM WIS >>> "The audio system checks at regular intervals that the theft protection information is correct (if “marriage” has occurred). This applies also if +30 is temporarily disconnected. If the information is not correct the display shows "LOCKED"."
EHU checks for correct theft protection from SID as SID is the gateway between EHU and DICE as per wiring diagram. I am certain that when SID gets theft protection code from EHU and compares it to theft protection code of DICE, codes don't match and SID locks out the radio.
Are you in GTA, Ontario area? PM me if you'd like to meet.
posted by 24.246.45...
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