Huw Williams

Gents… I’ll be honest, I’m sure plenty of others have done this too Volvo XC70 in with front and rear screenwash inoperative. One of our techs unplugged the washer pump connector ready for me to test powers and grounds. No activation to the pump, so I pulled wiring diagrams from Alldata and checked the BCM connector locations. According to the diagram, with the circuit inactive both pins at the washer pump should have a ground path. Tested it… one wire had no earth path. “Perfect” — wiring fault confirmed. Glovebox out, BCM accessed, checked the same two wires directly at the BCM… both grounds present there 🤔 At this point I’m thinking:“If there’s a break or corrosion, it’ll be under the bonnet or around the wheel arch.” So off comes the inner arch… Found the issue straight away. The tech had unplugged the washer LEVEL sensor… not the washer pump 😂 Power and Ground present Faulty washer pump all along. Moral of the story:Before reaching for the wiring diagrams… make sure you’re testing the right component first and never trust other techs working with you 😅

New comment 14d ago

Daniel James

28d •

General Workshop chat.

Ai Diagnostic Is Next Level

Are you into automotive diagnostic like I am, and looking some one or somewhere to bounce ideas off? Or you are a shop owner that wants to increase the efficiency of the workshop? I suggest you check out DIAGEDGE, yes its AI but man, its really a game changer. This ground breaking app is a must for all workshop, DIYer and season technicians who are working in the automotive industry. I have personally tested and use this app daily, weekly and its freaking awesome. It doesn't stop you from thinking, it gives you more options. From Front desk help, DPF & Emissions testing, Wiring Logic to Workshop Team. Try it, test it for 1AUD then there is a monthly fee or group fee, depending on what package you would like. Check it out, the link is down below. DiagEdge — AI Diagnostic Assistant for Automotive Workshops https://share.google/BICYIEgsWVr7iPi97

New comment 26d ago

Huw Williams

0 likes • 28d

sounds like a custom GPT only for automotive. if you go on google gemini or chatgpt and paste " Role - you are my automotive technician assistant with decades of experience in diagnosing faults from electrical wiring, EGR, DPF, ADAS, ADBLUE, DIRECT INJECTION, INDIRECT INJECTION, HYBRID , EV. I need clear explanation of test we can carry out and always reply with no bullshit answers. Goal - our goal is to diagnose every fault with a 100% success rate, no comebacks from the customer. i am a diagnostic technician from (garage name) with .... years of experience. We have every tool you can think of when diagnosing cars, pico 4425 master kit, VAG and BMW DEALER TOOL, leak off test, insulation tester, thinkcar 399, tpms t90 from thinkcar, also access to diagnose dan tsb, alldata and majority of dealer portals."