Electric Cars · Fuse guide
Main high-voltage contactor Fuse Guide
Main high-voltage contactor has stopped working, and the likely cause is a blown fuse.
System
High-voltage
Location
Under the steering column. Slot for main high-voltage contactor.
Amp rating
200 A
Fuse type
Blade (ATO) mini
Color
Green
The Main high-voltage contactor circuit is protected by a 200 A fuse. When that fuse blows, the circuit stops working and a simple replacement usually restores it. This guide shows you where the fuse lives and how to swap it safely.
Fuse Details
| Specification | Value |
|---|---|
| Location | Under the steering column. |
| Amp rating | 200 A |
| Fuse type | Blade (ATO) mini |
| Standard color | Green |
Checking the Fuse
Never work on the high-voltage fuse yourself. It requires high-voltage certification and special tools. Pull the fuse out and hold it up to the light. If the metal link is broken or melted the fuse has blown. Test across the two prongs with a multimeter set to continuity: a good fuse reads near zero ohms, an open reading confirms it is dead.
Step-by-Step Replacement
- Switch the ignition off and isolate the circuit.
- Open the relevant fuse panel and find the Main high-voltage contactor fuse using the lid diagram.
- Pull the fuse with a fuse puller and inspect the link.
- Fit a new fuse with the exact same 200 A rating. Never use a higher rating.
- Re-test the Main high-voltage contactor before replacing the cover.
If It Blows Again
A fuse that blows again immediately points to a short or an overloaded circuit, not a bad fuse. Check the wiring and the component it feeds, and see a professional if it keeps happening.
Tools you'll need
Related error codes
P0AA1
P0AA2