DME control module connector assignment

Fig 1: DME Control Module Connector Assignment

Courtesy of PORSCHE OF NORTH AMERICA, INC.

Connector I, 9-pole

Connector II, 24-pole

Pin	Designation
1	Oxygen sensor heating 2 after catalytic converter
2	Pump current regulator of oxygen sensor 1 ahead of catalytic converter
3	CAN low (Tiptronic)
4	CAN high (Tiptronic)
5	Pump current regulator of oxygen sensor 1 ahead of catalytic converter
6	Pump current regulator of oxygen sensor 1 ahead of catalytic converter
7	Oxygen sensor heating 1 after catalytic converter
8	Ground, oxygen sensor 2 after catalytic converter
9	Ground, oxygen sensor 1 after catalytic converter
10	Ground, oxygen sensor 2 after catalytic converter
11	Ground, oxygen sensor 1 after catalytic converter
12	not assigned
13	Oxygen sensor heating 2 ahead of catalytic converter
14	Signal, oxygen sensor 2 after catalytic converter
15	Signal, oxygen sensor 1 ahead ofTWC
16	Signal, oxygen sensor 2 ahead of catalytic converter
17	Signal, oxygen sensor 1 after catalytic converter
18	not assigned
19	Oxygen sensor heating 1 ahead of catalytic converter
20	not assigned
21	Engine compartment temperature sensor
22	5 V supply for mass air flow sensor
23	not assigned
24	Pump current regulator of oxygen sensor 2 ahead of catalytic converter

Connector III, 52-pole

Pin	Designation
1	Valve lift control, cylinder 1 - 3
27	Fuel injector, cylinder 4

Connector III, 52-pole

Pin	Designation
2	Fuel injector, cylinder 5
3	EVAP canister purge valve (closed without flow)
4	Frequency valve, charge pressure
5	Oil temperature sensor
6	not assigned
7	5 V supply for camshaft position? sensor and differential pressure sensor
8	Signal, throttle position sensor 2
9	Ground, mass air flow sensor
10	5 V supply for throttle actuation
11	Triggering of secondary air pump relay (terminal 85)
12	Signal, camshaft position sensor 1
13	Start enable, Tiptronic (P + N)
14	Secondary air valve
15	Fuel injector, cylinder 3
16	Overrun recirculating air valve
17	Ground, sensors
18	Signal, camshaft position sensor 2
19	Charge control
20	not assigned
21	not assigned
22	Engine coolant temperature sensor
23	Signal, mass air flow sensor
24	Signal, throttle position sensor 1
25	Ground, throttle position sensors 1 & 2
26	Valve lift control, cylinder 4 - 6
28	Fuel injector, cylinder 6
29	not assigned
30	not assigned
31	not assigned
32	Ground
33	not assigned
34	Intake air temperature sensor
35	not assigned
36	Input, knock sensor 2
37	Ground, knock sensor 2
38	not assigned
39	Charge pressure sensor
40	Fuel injector, cylinder 2
41	Fuel injector, cylinder 1
42	not assigned
43	not assigned
44	not assigned
45	Signal A, speed sensor
46	.....
47	not assigned
48	not assigned
49	Signal B, speed sensor
50	Ground, knock sensor 1
51	not assigned
52	Speed signal from ABS control module

Connector IV, 40-pole

Pin	Designation
1	Interlock clutch switch
2	not assigned
3	not assigned
4	Coolant fan, stage 1
5	not assigned
6	not assigned
7	Ground, pedal sensor 1
8	Signal, pedal sensor 1
9	5 V supply, pedal sensor 1
10	Triggering of fuel pump relay (terminal 85)
11	not assigned
12	Ground, pedal sensor 2
13	Signal, pedal sensor 2
14	5V supply, pedal sensor 2
15	Ground, differential pressure sensor
16	Crash signal (air bag)
17	Speed signal output
18	not assigned
19	not assigned
20	Coolant fan, stage 2
21	Signal, differential pressure sensor
22	not assigned
23	not assigned
24	Automatic I/M test
25	Triggering of engine compartment fan relay (terminal 85)
26	Triggering of DME relay (terminal 85)
27	Triggering of A/C compressor fan relay (terminal 85)
28	not assigned
29	Knocking signal
30	EVAP canister shutoff valve
31	Coolant fan, stage 3
32	not assigned
33	Manual transmission start enable
34	Air conditioning medium pressure switch
35	not assigned
36	CAN high (PSM and instrument cluster)
37	CAN low (PSM and instrument cluster)
38	not assigned
39	not assigned
40	Tiptronic coolant shutoff valve

Connector V, 9-pole