Car is a 2003 Renault Scenic 1.4 Authentic (run out model of the original style Scenic). We had it from new and it gave great service with minimal problems. It was serviced by myself. When we pensioned it off last year after 14 years and 100K we sold it to a mate at my work who runs bangers. It's continued to give good service but now has a airbag light on. Codes are both DF040. One is Passenger lateral sensor circuit no communication and also Passenger lateral sensor circuit faulty.

They make sense and I want to have a go at fixing it for my mate. My questions are

1. Where is the damn lateral sensor located? Internet searches have been negative.

2. What is the part number (if I can find the sensor I can probably get the part number off of it)? This is to get another one off of ebay etc.

I appreciate it could be the wiring or the sensor and will take the normal precautions when investigating.

PS car is still on the original exhaust!!!!!!!

Many thanks in hope of answers.