Jumpy preheating lamp and smoking

Hi, I have a 2017 Citroen Jumpy diesel. The preheating lamp won't switch off, the check engine light is on, and it's smoking when I accelerate. My scanner says it's a defective glow control unit. I checked the connections and they seem okay. Anyone experienced this?

4 comment(s)

I had something similar with my Citroen Dispatch. Is it hard to start when cold? If so, it might actually be the wiring. Have you properly checked the cable and plug connection? Those can be tricky.

Thanks! Cold starts are a bit rough, yeah. By "properly checked," what exactly do you mean? I visually inspected them, but didn't do anything beyond that.

Visually checking isn't enough. The cable or plug could have internal corrosion or damage. I'd suggest a workshop visit to rule it out. In my case, after the error was diagnosed and the defective cable diagnosed, the final bill was 95€

Appreciate the advice. I suspected it might need a more thorough look. I'll take it in. Thanks again for confirming my suspicions!

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