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Unknown Electrical Component - Caterham 310


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Does anyone know what this is? It has two connectors on it and mounts on the inside of the firewall above the heater opening. 

Elec Component.jpg

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  • 3 weeks later...

They call it a dash control module but it is actually just a set of jumpers to map switches to the right place. It has no electronics in it and could be replaced by cutting off both connectors and splicing the appropriate wires. I mapped it out while troubleshooting a 420 that came miss-wired from the factory. That resulted in developing a complete wiring spreadsheet for the latest wiring harness. The car came with multiple swapped pins in connectors. The fuel gauge was connected to the alternator and the fuel pump was running backwards!

  • Shocked 2
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58 minutes ago, CatManDo said:

The car came with multiple swapped pins in connectors. The fuel gauge was connected to the alternator and the fuel pump was running backwards!

 

This seemed an appropriate post to try out the new shocked reaction :)   Amazing they could get it that wrong.

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I'm all in with hiring the disadvantaged but a dyslexic color blind worker may not be a good choice in a wiring harness factory. It took us at least 3 days to figure out what was going on.

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6 hours ago, CatManDo said:

I'm all in with hiring the disadvantaged but a dyslexic color blind worker may not be a good choice in a wiring harness factory. It took us at least 3 days to figure out what was going on.

 

@CatManDo - I feel your pain. When I first started up my Caterham I couldn't figure out why the fuel gauge and temp gauge were giving weird readings or no readings at all. It turned out the signal wires were swapped (I think they were G/B and G/P), but thankfully I was able to figure it out without too much trouble. 

 

I'm presently going through some electrical issues with my car. I seem to have a fuel pump that is permanently on, as well as a draw on the battery (with the FP disconnected) that might be related to the fuel pump issue but haven't pinpointed it yet. The first time I took the scuttle off I couldn't believe how much wiring there is on the Caterham. I mean, it's supposed to be a simple car, right??? When I had my Birkin I spent probably a week rewiring everything under the dash. Some of that was wiring in the Emerald ECU I was using, but most of it was just the poor initial installation of the original build. I was hoping for a lot better with the Caterham, but the wiring/electrical/gauges and the lack of a decent wiring diagram/relay layout has been the only disappointment in my ownership so far. I ended up having to wire in a master disconnect switch until I can find the time to dive deeper into this issue.

 

I'm going to start another topic as it relates to the fuel pump relay.

 

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I surmised the purpose of the module a few months ago with a related discussion. At least you guys on the inside (part time) should have access to the actual schematics. Very annoying when trying to figure these things out.

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  • 1 month later...

Believe it or not there are no real schematics available. The only thing to work with is a drawing defining the wiring harnesses. Believe me, if there was a real schematic I would post it here.

 

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The wiring harness layout/pinout drawings you describe would benefit the community. I think they stopped sharing those in the assembly guides around 2016.

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