2004 Peugeot 307 1.4s Indicators not working or heater, lights stay on

Peugeot 307 Problem
The Problem

Indicators not working or heater, lights stay on
Nov 1, 2015 (4 years ago)
Heater stopped working this morning along with indicators. Lights won't switch off either. After stopping the car it now will not start.

Car details
Car: Peugeot 307
Variant: 1.4s
Model Year: 2004
Category: Electrics, ECU, Warnings & Lights

Recalls: Peugeot 307 Recalls
More: Peugeot 307 Problems
Replies and solutions
Fixes: 1,862
Nov 1, 2015 (4 years ago)
Everything electrical on these is controlled by the "Body Systems Interface"
which is basically a computer control system.
You need it scanned just like the engine control computer would need scanned if the engine warning lamp was lit.
It's connected to the same interface as the engine control.
But it does sound like water has got into the BSI.
Which isn't too good for electrics.
Scan is the first step.
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