10.13
FIRE TRUCK PRESSURE GOVERNOR FAULT
Does the PRESET switch pass the menu I/O test?
Connector 1:
Deutsch DT06-4S
Cavity
Circuit Description
DDC#
EFC Input/Output
1
DDEC Accessory Power
439
(+) System Power
2
DDEC Accessory Ground
953
(-) System Ground
3
DDEC 1708 Data Link (+)
900
J1587 Serial Link
4
DDEC 1708 Data Link (-)
901
J1587 Serial Link
Table 10-18
Electronic Fire Commander Wiring
Connector 2:
DT06-12S
Cavity
Circuit Description
DDC#
EFC Input/Output
1
DDEC PGS Mode Select
523
Output (ground) to DDEC
2
OEM Interlock from OEM
-
Input (+12 VDC)
3
Cavity plug
-
No connection
4
DDEC PGS Mode
499
Input (ground) from DDEC
5
DDEC PGS Enable
-
Output (ground) to DDEC
6
DDEC PGS Increase
-
Output (ground) to DDEC
7
DDEC PGS Decrease
-
Output (ground) to DDEC
8
DDEC PGS Active
-
Input (ground) from DDEC
9
Alarm
-
Output (ground) to DDEC
10
PTO Engaged
-
Input (+12 VDC) from OEM
11
Cavity Plug
-
No connection
12
Low fuel
-
Input (ground) from DDEC
Table 10-19
Electronic Fire Commander Wiring
Pressure Sensor
Connector:
Circuit
Cavity
Wire Color
Description
916
B
Red/Black
Sensor Supply 5 VDC
749
C
Yellow
Fire Pump Pressure
952
A
Black
Sensor Return
Table 10-20
Electronic Fire Commander Wiring
All information subject to change without notice.
10-62
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
