EDI DIAGNOSIS SERVICE MANUAL NUMBER 22
Page 5E-54 90-860074--1 FEBRUARY 2002
Glow Plug Lamp (Glow Plug Display)
MODELS WITH EARLY (16 PIN) CONNECTOR
NOTE: Functional only if the engine is equipped with a Glow Plug System.
Scan Code:
P1645
Blink Code: 1411
Malfunction Indicator Lamp: OFF
ECM
75476
BLK/YEL
75305
BLK/YEL
3
BLK/YEL
b
c
d
e
a
a-Electrical Box
b-Pin 6 of Instrumentation Harness 16 Pin Connector
c-Pin 6 of ECM 11 Pin Harness Connector
d-Glow Plug Lamp
e-Instrument Panel
f-ECM Supplied Ground Circuit
CIRCUIT DESCRIPTION:
The Glow Plug Lamp (wait-to-start) 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.
CKT PIN
NAME
3 ECM controlled Ground (–) for dash panel Glow Plug Lamp
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