Preparation for Test: 1. Vehicle battery must be sufficiently charged (electrolyte specific gravity: 1:3.6) 2. Check fuses OK. 3. Rear/front axle sensor (A51, A52) are mechanically OK. Electrical wiring diagrams (location of grounds and connectors): Electrical Troubleshooting Manual, Model 202, group 82, Model 208, group 82 Model 210, group 82

Conventional tools, test equipment

Description	Brand, model, etc.
Multimeter 1)	Fluke models 23, 83, 85, 87
Headlight adjustment tester 1)	Hella Hopkins Mfg./SPX Corp.

1) Available through the MBUSA Standard Equipment Program.