-88 SL560 OBD1 codes

Hello all,

Ii have ben searching all over trying to find correct error codes from the OBD1, but there are several suggestions for the codes and I am not able to figure which is correct.
What I believe is correct, only because this information is the most common, is the following:
Readouts from port 6. Code 3: airbag. Code 5: Driver seat buckle. Code 6: Passenger seat buckle. Code 9: Warning lamp faulty.
Other "suggestions" for the codes are: Code 3: Cooling temperature sensor. Code 5: Idle air control. Code 6: Throttle position switch. Code 9: ECU error.

As you can see, quite different results. These reults keep coming, even from AI, but I dont trust them enough to start buying parts.

Does anyobe have the real, correct code table?
Appreciate any inputs.

Rgds Erik

Check document 07.3-121 from here sternzeit-107.de/de/slpedia/w116-wsm/116...7sl-ri-engc-m11696ke