Mercury MerCruiser D2.8L D-Tronic Service Manual page 624

Marine engines in-line diesel
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EDI DIAGNOSIS
Glow Plug Lamp (Glow Plug Display)
MODELS WITH LATE (21 PIN) CONNECTOR
NOTE: Functional only if the engine is equipped with a Glow Plug System.
Scan Code:
Blink Code:
Malfunction Indicator Lamp:
BLK
ORN
RED
RED
CIRCUIT DESCRIPTION:
The Glow Plug Lamp is controlled by the ECM. The lamp is supplied 12 volts with the key
in the ON/RUN position. A ground (–) path is closed when the ECM is operating the relays
for the glow plugs and the lamp is illuminated.
3
Page 5E-56
a
PPL/YEL
ORN
PPL
BLK
BRN
RED
PPL
BLU/BLK
PPL/YEL
c
GRN
RED
RED
BLK
BLK
a -
Electrical Box
b -
Pin K of Instrumentation Harness 21 Pin Connector
c -
Pin 6 of ECM 12 Pin Harness Connector
d -
Glow Plug Lamp
e -
Instrument Panel
f -
ECM Supplied Ground Circuit
CKT PIN
ECM controlled Ground (–) for dash panel Glow Plug Lamp
P1645
1411
OFF
b
BLU/TAN
BLK/YEL
SERVICE MANUAL NUMBER 22
d
3
NAME
90-860074--1 FEBRUARY 2002
e
75305
ECM
f
75476

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