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stefanstar43

Aygo Clutch Switch Problems

I'm having a perplexing issue with my 2007 Toyota Aygo diesel, which has 87976 km on the odometer. The car is showing a faulty clutch pedal switch. Symptoms include an error stored, a non-functional gear selection display, cruise control inoperability, and intermittent starting difficulties. I think it's a defect in the cable or plug connection. Has anyone seen this before, and what did you do?

4 comment(s)

andreas_miller6

Whoa, that's a crazy combo of symptoms for a little Aygo! The gear selector display going bonkers along with the cruise control and starting issues definitely points towards an electrical gremlin tied to that clutch switch. Have you tried wiggling the connector when the ignition is on (but engine not running!) to see if anything flickers on the dash or if you hear any relays clicking? Also, have you checked the condition of the wires going into the connector itself? They might be corroded or even broken inside the insulation. Sometimes, just flexing the wires can reveal a break. Good luck!

stefanstar43 (Author)

When you suggest 'wiggling the connector,' are you referring to the connector at the clutch pedal switch itself, or are there other related connectors I should also examine? Also, regarding the wire inspection, would a multimeter be advisable to check for continuity, or is a visual inspection typically sufficient?

andreas_miller6

Yep, I meant the connector right at the clutch pedal switch. Give that a wiggle first. But since you've got multiple systems acting up, it might be worth tracing the wires back a bit to see if they join any other connectors or wiring harnesses. Toyota wiring can be pretty robust, but you never know! A multimeter would definitely give you a more definitive answer than just eyeballing it. Check for continuity, and also voltage drop while someone operates the clutch. Honestly though, with all those symptoms, and especially if you're not super comfy with auto electrics, it might be worth a quick trip to a workshop. They'll have the proper diagnostic tools to pinpoint the problem fast.

stefanstar43 (Author)

Following your advice, I inspected the wiring and connector at the clutch pedal switch. I didn’t see any breaks, but I decided to have the switch replaced. The total repair cost was 95€. This fixed all the issues. Thanks again for your help.

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