Preparation for Test: 1. Battery voltage 11 - 14 V. 2. Check fuses. 3. Systems and fluid levels are o.k. Note: In order to avoid damage to the control modules listed in 23 , please ensure that the ignition is OFF, prior to connecting or disconnecting any electrical leads. Electrical Wiring Diagrams: See Electrical Troubleshooting Manual, Model 202, Vol. 1, group 54

Conventional tools, test equipment

Description	Brand, model, etc.
Multimeter 1)	Fluke models 23, 83, 85, 87
Signal generator 1)	SUN DTR-8416

1) Available through the MBUSA Standard Equipment Program.