😱This Nissan Leaf Wouldn’t Start… The Real Cause Will Surprise You🔧💦

In this video, I diagnose a Nissan Leaf non-start issue with multiple dashboard warning lights and stored fault codes. The vehicle would not enter READY mode and, at times, wouldn’t even switch off. I begin the diagnosis by checking the key fob RF signal and batteries, an essential first step when dealing with no-start conditions on electric vehicles like the Nissan Leaf. Next, I move on to the Body Control Module (BCM), inspecting power, grounds, wiring, and connectors located behind the glove box. This is where the real issue starts to show. During inspection, I find corrosion (green crusties) on the BCM connectors. After carefully cleaning the pins and reinstalling the module, the car starts and drives normally again. Finally, I trace the root cause to water ingress from a leaking passenger-side windscreen, allowing moisture to drip directly onto the BCM over time. Key Points: Nissan Leaf won’t start / no READY mode Key fob signal and battery testing BCM location and inspection Corrosion caused by windscreen leak EV electrical fault diagnosis and repair 👍 Like, subscribe, and thanks for watching! #mechanic #automobile #carrepair #evcars #nissan #nissanleaf #waterleak #diagnosis #diygarage #carparts #keysystemfault #NissanLeafNoStart #NissanLeafProblem #evrepair #cartroubleshooting

I Replaced This Nissan LEAF’s Faulty Battery in Under 2 Hours – Fixed the EV!
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I Replaced This Nissan LEAF’s Faulty Battery in Under 2 Hours – Fixed the EV!

Nissan leaf won't charge!  I can't believe it was just this! Thousands saved....
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Nissan leaf won't charge! I can't believe it was just this! Thousands saved....

Smart ForTwo/ForFour EQ Cooling System Warning + Fault Code P0463F1 Coolant Pump Electrical Fault
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Smart ForTwo/ForFour EQ Cooling System Warning + Fault Code P0463F1 Coolant Pump Electrical Fault

NEVER Use 32 PSI — Stop Falling For The Tire Industry’s $1,000 Trap
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NEVER Use 32 PSI — Stop Falling For The Tire Industry’s $1,000 Trap

p0AA6 HV Battery voltage Isolation.                 p31E7 Restart inhibiton  Nissan Kicks e-power
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p0AA6 HV Battery voltage Isolation. p31E7 Restart inhibiton Nissan Kicks e-power

I Tried to Double My Nissan Leaf’s Horsepower…
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I Tried to Double My Nissan Leaf’s Horsepower…

Nissan LEAF 62 kWh “EV Service” Mystery — Battery Isolation Fault EXPOSED & Fixed! ⚡🔧
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Nissan LEAF 62 kWh “EV Service” Mystery — Battery Isolation Fault EXPOSED & Fixed! ⚡🔧

I Hacked This Temu Router. What I Found Should Be Illegal.
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I Hacked This Temu Router. What I Found Should Be Illegal.

Why Did We Stop Using This Natural Cooling System?
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Why Did We Stop Using This Natural Cooling System?

One Bad Cell Killed the Range – Nissan Leaf Pack Swap to the Rescue!
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One Bad Cell Killed the Range – Nissan Leaf Pack Swap to the Rescue!

I Bought The UK's Cheapest Electric Car For £600!
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I Bought The UK's Cheapest Electric Car For £600!

Isolation Fault! Replacing A Cell In A (Recently Warrantied) Faulty Nissan Leaf Battery Pack
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Isolation Fault! Replacing A Cell In A (Recently Warrantied) Faulty Nissan Leaf Battery Pack

NEVER Seen A Car Do This Before / 2026 Nissan LEAF Review
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NEVER Seen A Car Do This Before / 2026 Nissan LEAF Review

Mike Brewer Reveals The Truth About What Happened to Wheeler Dealers
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Mike Brewer Reveals The Truth About What Happened to Wheeler Dealers

Restore Old Headlights to NEW in 1 Minute with WD-40! Genius Trick
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Restore Old Headlights to NEW in 1 Minute with WD-40! Genius Trick

Beginner's or new owners guide to using a Nissan Leaf 40kWh (& 62kWh model)
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Beginner's or new owners guide to using a Nissan Leaf 40kWh (& 62kWh model)

2011-2017 Nissan Leaf won’t charge
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2011-2017 Nissan Leaf won’t charge

Nissan LEAF 40kWh High Voltage Module swap - Fix for fail code EVC-157 EV Systems
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Nissan LEAF 40kWh High Voltage Module swap - Fix for fail code EVC-157 EV Systems

This trick will reset your car in 2 minutes (workshops hate it!)
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This trick will reset your car in 2 minutes (workshops hate it!)

Restore Old Headlights to NEW in 1 Minute with Old Batteries! Genius Trick
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Restore Old Headlights to NEW in 1 Minute with Old Batteries! Genius Trick