Section 17.2 Motor Control Module

Section 17.2
Motor Control Module

The engine mounted Motor Control Module (MCM) includes control logic to provide overall engine management. See Figure "Motor Control Module" .‪

Click to see this graphic in a separate window

1. 21–pin Connector (OEM Responsibility)‪

2. 120–pin Connector (Detroit Diesel Responsibility)‪

Figure 1. Motor Control Module

Note: Do NOT ground the MCM. This can result in false codes being logged.

Section 17.2.1
Engine Harness

The MCM has a 120–pin connector Engine Harness which is factory installed. It also has a 21–pin connector which is the responsibility of the OEM. The pinouts for the 120–pin connector are listed in Table "MCM Connector – Series 60 (1 of 4)" , Table "MCM Connector – Series 60 (2 of 4) – C Sample" , Table "MCM Connector – Series 60 (3 of 4) – C Sample" , and Table "MCM Connector – Series 60 (4 of 4) – C Sample" .‪

The pinout for the 21–pin connector is listed in Table "21–Pin Connector to the MCM" .‪

Pin‪	Function‪	Connector‪
1‪	NC‪
2‪	NC‪
3‪	NC‪
4‪	Spill Control Valve (cyl 4) - pin 4‪
5‪	Spill Control Valve Common - pin 3‪
6‪	Spill Control Valve (cyl 6) - pin 4‪
7‪	Spill Control Valve Common - pin 3‪
8‪	Spill Control Valve (cyl 5) - pin 4‪
9‪	Spill Control Valve Common - pin 3‪
10‪	Spill Control Valve (cyl 2) - pin 4‪
11‪	Spill Control Valve Common - pin 3‪
12‪	Spill Control Valve (cyl 3) - pin 4‪
13‪	NC‪
14‪	Spill Control Valve (cyl 1) - pin 4‪
15‪	NC‪
16‪	Needle Control Valve (cyl 4) - pin 2‪
17‪	Needle Control Valve Common - pin 1‪
18‪	Needle Control Valve (cyl 6) - pin 2‪
19‪	Needle Control Valve Common - pin 1‪
20‪	Needle Control Valve (cyl 5) - pin 2‪
21‪	Needle Control Valve Common - pin 1‪
22‪	Needle Control Valve (cyl 2) - pin 2‪
23‪	Needle Control Valve Common (cyl 1,2,3) - pin 1‪
24‪	Needle Control Valve (cyl 3) - pin 2‪
25‪	NC‪
26‪	Needle Control Valve (cyl 1) - pin 2‪
27‪	NC‪
28‪	NC‪
29‪	DOC Outlet Temp Sensor‪
30‪	DPF Outlet Pressure Sensor‪

Table 2. MCM Connector – Series 60 (1 of 4)

Pin‪	Function‪	Connector‪
31‪	NC‪
32‪	Jake 1‪
33‪	Two-speed Fan or Variable Speed Fan‪
34‪	NC‪
35‪	NC‪
36‪	NC‪
37‪	NC‪
38‪	Ground‪
39‪	NC‪
40‪	NC‪
41‪	NC‪
42‪	CKP/TRS (-)‪
43‪	CKP/TRS (+)‪
44‪	CMP/SRS (-)‪
45‪	CMP/SRS (+)‪
46‪	NC‪
47‪	Fan Speed‪
48‪	NC‪
49‪	NC‪
50‪	Sensor Ground‪
51‪	Turbo Speed Sensor‪
52‪	Sensor Ground‪
53‪	NC‪
54‪	Engine Oil Pressure Sensor‪
55‪	Sensor Ground‪
56‪	NC‪
57‪	NC‪
58‪	Sensor Power Supply‪
59‪	NC‪
60‪	EGR Valve Position‪

Table 3. MCM Connector – Series 60 (2 of 4) – C Sample

Pin‪	Function‪	Connector‪
61‪	EGR Valve‪
62‪	Power Supply‪
63‪	NC‪
64‪	Power Supply‪
65‪	Doser‪
66‪	Jake 2‪
67‪	Ground‪
68‪	NC‪
69‪	Fuel Cutoff Valve‪
70‪	Ether Start‪
71‪	NC‪
72‪	NC‪
73‪	NC‪
74‪	VNT CAN (-)‪
75‪	VNT CAN (+)‪
76‪	NC‪
77‪	Supply Fuel Temperature Sensor‪
78‪	NC‪
79‪	NC‪
80‪	NC‪
81‪	NC‪
82‪	Sensor Supply‪
83‪	EGR Temperature Sensor‪
84‪	Fuel Compensation Pressure Sensor‪
85‪	Sensor Supply‪
86‪	Turbo Compressor In Temp‪
87‪	Intake Manifold Pressure Sensor‪
88‪	Sensor Ground‪
89‪	DOC Inlet Temp Sensor‪
90‪	Intake Air Throttle Valve‪

Table 4. MCM Connector – Series 60 (3 of 4) – C Sample

Pin‪	Function‪	Connector‪
91‪	Power Supply‪
92‪	NC‪
93‪	Power Supply‪
94‪	NC‪
95‪	NC‪
96‪	NC‪
97‪	NC‪
98‪	Single-speed Fan or Two-speed Fan‪
99‪	NC‪
100‪	Intake Air Throttle (+)‪
101‪	Intake Air Throttle (-)‪
102‪	Sensor Ground‪
103‪	Sensor Ground‪
104‪	Sensor Ground‪
105‪	Sensor Ground‪
106‪	Intake Air Temperature Sensor‪
107‪	NC‪
108‪	Engine Oil Temperature Sensor‪
109‪	EGR Delta Pressure Sensor‪
110‪	Engine Coolant Temp Sensor‪
111‪	Fuel Line Pressure Sensor‪
112‪	Turbo Compressor Out Temp‪
113‪	NC‪
114‪	Sensor Ground‪
115‪	DPF Outlet Temp Sensor‪
116‪	NC‪
117‪	Sensor Power Supply‪
118‪	DPF Inlet Pressure Sensor‪
119‪	NC‪
120‪	NC‪

Table 5. MCM Connector – Series 60 (4 of 4) – C Sample

Section 17.2.1.1
Connector Brackets

The harnesses on MCM must be bracketed and held secure. The bracket design will change for different engines as the routing is different. The 120–pin connector and the 21-pin connector must be tie-wrapped to the brackets as shown in the following drawing for the Series 60 engine (see Figure "Series 60 Engine 120–pin Connector and 21–pin Connector Tie-wrapped to Brackets" ).‪

1. 21–pin Connector Bracket‪	3. 120–pin Connector Bracket‪
2. Tie Wrap‪	‪

Figure 2. Series 60 Engine 120–pin Connector and 21–pin Connector Tie-wrapped to Brackets

Section 17.2.1.2
MCM 21–pin and 31–pin Connectors

The wiring for the VIH 21–pin to the MCM is listed in Table "21–Pin Connector to the MCM" . The side of the connector shown is looking into the pins. ‪

Pin‪	Signal Type‪	Function‪	Connector‪
21/1‪	CAN2L‪	Not Used‪	Front‪ Looking into the Pins on the Harness‪
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

Table 7. 21–Pin Connector to the MCM

The pinout for the 31–pin pigtail on the Engine Harness is listed in Table "31–pin MCM Pigtail Connector" . The OEM is responsible for wiring to this connector.‪

31–pin‪	120–pin‪	Function‪	Series 60‪
31/1‪	—‪	Spare‪	—‪
31/2‪	—‪	Power Supply (IGN)*‪	—‪
31/3‪	—‪	Fuel Heater Supply #1†‪	—‪
31/4‪	—‪	Spare‪	—‪
31/5‪	—‪	Full Heater Supply #2†‪	—‪
31/6‪	—‪	Spare‪	—‪
31/7‪	—‪	Power Supply Ground*‪	—‪
31/8‪	120/70‪	Ether Start‪	X‪
31/9‪	120/33‪	Fan Control #2 – High of Two-speed Fan or Variable Speed Fan‪	X‪
31/10‪	120/98‪	Single Speed Fan or Low for Two-speed Fan‪	X‪
31/11‪	—‪	Fuel Heater Ground #1†‪	—‪
31/12‪	—‪	Spare‪	—‪
31/13‪	—‪	Spare‪	—‪
31/14‪	120/71‪	Water-in-Fuel Sensor Supply‪	—‪
31/15‪	120/67‪	Water-in-Fuel Sensor Ground‪	—‪
31/16‪	120/96‪	Engine Brake Solenoid Control‪	—‪
31/17‪	120/29‪	DOC Outlet Temp Sensor (Exhaust Gas Temperature in Front of Particulate Trap)‪	X‪
31/18‪	120/89‪	DOC Inlet Temp Sensor‪	X‪
31/19‪	120/115‪	DPF Outlet Temp Sensor( Exhaust Gas Temperature After Particulate Trap)‪	X‪
31/20‪	—‪	Full Heater Ground #2†‪	—‪
31/21‪	—‪	Spare‪	—‪
31/22‪	120/91‪	Power Supply (Eng Brk, Fan, Ether)‪	X‪
31/23‪	120/47‪	Fan Speed‪	X‪
31/24‪	120/88‪	Sensor Ground‪	X‪
31/25‪	—‪	Spare‪	—‪
31/26‪	120/57‪	Water-in-Fuel Sensor‪	—‪
31/27‪	120/86‪	TCI Temp‪	X‪
31/28‪	120/114‪	Sensor Ground‪	X‪
31/29‪	120/85‪	Sensor Supply‪	X‪
31/30‪	120/30‪	DPF Outlet Pressure Sensor (Exhaust Gas Pressure After Particulate Filter)‪	X‪
31/31‪	120/118‪	DPF Inlet Pressure Sensor (Exhaust Gas Pressure Before Particulate Filter)‪	X‪

Table 8. 31–pin MCM Pigtail Connector

*Fused at 15 amps
† Optional for MBE 900 and HDE. Must use 14 AWG wire and fuse at 20A.

EPA07 Series 60 DDEC VI Troubleshooting Guide - 6SE567

Generated on 10-13-2008

Section 17.2.1 Engine Harness

Section 17.2.1.1 Connector Brackets

Section 17.2.1.2 MCM 21–pin and 31–pin Connectors