Mercury D4.2L D-Tronic

GLOW PLUG SYSTEM
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 4C-11
Glow Plug Circuit Diagram
NOTE: For additional information refer to SECTION 5E.
75476
86
30
87
85
86
30
87
85
BLK
BRN
BLK/YEL
BRN
BRN
BRN
BRN
BLU/YEL
BRN
RED/YEL RED/YEL
RED
BLU/YEL
a
b
b
c
d
e
f
g
h
a-Glow Plug(s) (Dashed Lines Indicate - Not Present on Four Cylinder Models)
b-ECM Circuit Path to Glow Plug Indicator Lamp
c-ECM Supplied Ground (–) Path to Actuator Relay
d-Starter Positive Terminal (Battery +)
e-Glow Plug (Actuator) Relay
f-Glow Plug Auxiliary Relay
g-Circuit Breaker (60 Amp)
h-Circuit Breaker (60 Amp)