500SEL (126.037) V8-5.0L (117.963) (1984)
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br = brown
ge = yellow
gn = green
gr = grey
rt = red
sw = black
vi = purple
ws = white
Test Condition:
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Engine at operating temperature, shift lever in position "P", ACC system turned off and no leaks in air intake system.
1. Check voltage supply to idle speed adjuster
