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DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
MCM 21–pin and 31–pin Connectors
The wiring for the VIH 21–pin to the MCM is listed in Table 3-13. The side of the connector
shown is looking into the pins.
Pin
Signal Type
Function
Connector
21/1
CAN2L
Not Used
21/2
CAN2GND
Not Used
21/3
CAN2H
Not Used
21/4
CAN2GND
Not Used
21/5
KL31
Battery (-)
21/6
KL31
Battery (-)
21/7
KL15
IGN
21/8
KL31
Battery (-)
21/9
KL31
Battery (-)
21/10
CAN1GND
Engine CAN Shield
21/11
KL30
Battery (+)
21/12
KL30
Battery (+)
21/13
CAN1H
Engine CAN +
21/14
KL30
Battery (+)
21/15
KL30
Battery (+)
21/16
CAN1GND
Not Used
21/17
BOOT
Not Used
21/18
KDiag_S
Not Used
21/19
CAN1L
Engine CAN –
21/20
KL50
Crank Start Input
21/21
START_B
Crank Activation Output
Front
Looking into the Pins on the Harness
Table 3-13
21–Pin Connector to the MCM
Part
DDC Part Number
Connector
024 545 76 26
1.0 – 2.5 mm Contact (single)
014 545 82 26
0.5 – 1.0 mm Contact (single)
014 545 83 26
Seal (2.2 – 3.0 mm
2
insulation diameter)
000 545 29 39
Seal (1.2 – 2.1 mm
2
insulation diameter)
000 545 28 39
Backshell
001 545 79 83
Cavity Plug
000 545 62 80
Table 3-14
21–Pin Connector to the MCM Part Numbers
All information subject to change without notice.
(Rev. 01/07)
3-17
7SA827 0701
Copyright © 2007 DETROIT DIESEL CORPORATION