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Hi, on my ‘93 W140 Diesel the ignition is not recognized as “On” by HHT. I’m using a July 2017 edition multiplexer. I think it is a C4. Am I doing something wrong or is there an issue with the car that someone recognizes by this symptom? When I attempt to scan the car, it tells me to switch ignition on and I only have the “back” button available, so can’t move forward. Anyone run into this before? I’ve been using DAS/Xentry for years. Only used HHT before a couple of times (with no issues). Thanks in advance,

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