500SEL (126.037) V8-5.0L (117.963) (1984)
gn = green
gr = grey
rt = red
sw = black
vi = purple
ws = white
Wiring Diagram, Electronic Idle Speed Control
6. Warm-up compensator
19. Temperature switch, 16°C (61°F) oil
21. Electronic idle speed control unit
23. Idle speed adjuster
28. Time delay relay, ACC
31. Relay, fuel pump
a) Terminal (a), automatic climate control
b) Model 107: to terminal block engine, terminal 30
Model 126: to terminal block, terminal 30
c) to terminal block engine, terminal 50
d) to fuse box, terminal 15
e) to starter lockout/back-up lamp switch, terminal 7
f) to tail lamp harness, terminal 2
g) to connector, A/C compressor
h) to ignition/starter switch, terminal 50
i) to relay, lambda control unit with excess voltage protection, terminal 2
k) to low pressure switch, A/C compressor
l) to lambda control unit, terminal 6
m) Model 107: to tachometer
Model 126: to terminal block, terminal TD
n) to electronic temperature control unit
o) to fuse box, terminal 15
p) to temperature switch, 42°C (108°F) coolant
r) to lambda control unit, terminal 7
Color Code
bl = blue