Greetings form Portugal!

I own a Volvo 960 2.0 Turbo (Petrol) from 1993.
I needed your expertise for the following situations:

1. When I start the car the ABS light turns on, but after 5 minutes it goes off. I have already connected the Diagnostic Link Connector on Unit A, Position 3 but the red light does not come on. Any suggestions?
   
2. Following point 1 I tested the Diagnostic Link Connector in the remaining positions and detected a 4-3-1 error in position 5. After some research on the internet I have found that it could be EGR temp sensor faulty or missing. Can anyone confirm if this error in this position is really EGR?

Thanks to everyone who can help me in advance!

Best regards,
José Faria

OBD1 image:

 

A 960 with a four cyl. is a 940. I'd check the electrical system, battery, etc. Low or high voltage will trigger the ABS light.

 

This website might help

https://www.volvoclub.org.uk/faq/EngineOBDCodes.html

 

It's a 960 with B204FT engine. You can check this website for more info about this engine Info on the B204GT/FT engine - Turbobricks Forums but these models only came for a few countries in Europe, which Portugal is included.
Thank you for your advice, I'll check my electrical system just to be sure.

Thanks, unfortunately I can't find my 4-3-1 code on the site but it helps to understand why the red light on the ABS connector doesn't turn on.

 

I've heard of that motor, didn't know it was in 960s... Interesting set up, would love to have one.