89 420SEL Alarm System schematics
 

I need the electrical schematics for the alarm system on this car. Can anyone help me with a source for this info, and in general a source for maintenance and repair info for that car.... just got it and it is in mint condition; but want to be prepared for the future. The schematics for the alarm system are a current need tho'. Thanks in advance for the help .... Ben H. Carter

One can get a consumer version of Alldata at a reasonable rate. It does a good job of reproducing factory wiring diagrams back to about 84.