Where is the smart alternator located?

2013 PEUGEOT 208 GTI
84,000 MILES • 1.6L • 4 CYL • 2WD • MANUAL
Avatar
MATT PELLOWE
  • MEMBER
  • 1 POST
Battery stopped being charged. I suspect it is a fault with the smart alternator talking to engine computer.

Trying to locate smart alternator within the engine bay and remove the appropriate smart lead. The alternator/belts are all working fine so I hope this is a software problem but removing smart lead will allow alternator to charge battery (at 14v not 12.5v) until I can get Peugeot to resolve.
Jul 16, 2022 at 11:11 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
Hi,

First, this vehicle isn't offered in the US, so I don't have specifics on it. However, a smart alternator really just takes the place of a traditional alternator. If you found the alternator belt, the smart alternator should be there as well.

Let me know. Also, I'm sorry that I don't have specifics on your vehicle. However, let me know if this helps. Also, let me know if the smart alternator is charging at all. If it is, what voltage is it producing at the battery?

Take care,

joe
Jul 17, 2022 at 3:18 PM
Avatar
BORIS K
  • ✓Experienced Mechanic
  • 836 POSTS
Hello,

On your vehicle the alternator is located at the front of the engine just above the AC compressor.

The engine management system (ECM) is responsible for switching the alternator on/off, depending on load conditions and battery charge.

See illustration below, terminal L is the controlling input from the ECM.
There are only two wires at the alternator, a red main battery cable and the control wire from the ECM.

1010- starter
1020- alternator
1320- ECM

I would suggest first check that the control wire is not broken/disconnected.

Cheers, Boris
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jul 17, 2022 at 11:57 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.