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Diagnostic Manual, Engines, Volume 3

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LOCATION:    7.1 Cruise Control/Idle Speed Control (CC/ISC)   >   22 Electrical Test Program - Preparation for Test


Electrical Test Program - Preparation for Test

Preliminary work: Diagnosis - Diagnostic Trouble Code (DTC) Readout 11

1. Ignition: OFF
2. Remove CC/ISC control module (N4/3).
3. Connect socket box (see connection diagram, Figure 1 to 3)

Electrical wiring diagrams :
Electrical Troubleshooting Manual, Model 124
Electrical Troubleshooting Manual, Model 140

Equipment

Digital multimeter 1) Fluke models 23, 83, 85, 87
Signal generator 1) 2) Sun DTR 8416
1) Available through the MBUSA Standard Equipment Program.
2) Two signal generators and two multimeters are required for testing the potentiometer and cruise control.