USDM IX ECU Pinout
Revision as of 18:36, 29 November 2009 by EdwardMarshall (talk | contribs) (Created page with '== Evo IX == The USDM Evo IX ECU uses a three-plug harness, with three rows of pins for each plug. The factory service manual refers to these plugs as C-121, C-119, and C-117. …')
Evo IX
The USDM Evo IX ECU uses a three-plug harness, with three rows of pins for each plug. The factory service manual refers to these plugs as C-121, C-119, and C-117.
C-121
1 | 2 | 3 | 4 | JAE | 5 | 6 | 7 | 8 | ||||||
9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 |
Pin | Description |
---|---|
1 | Injector #1 |
2 | Injector #4 |
3 | Front O2 heater control |
4 | |
5 | |
6 | Exhaust gas recirculation solenoid relay control, ground |
7 | |
8 | Alternator voltage regulator, ground |
9 | Injector #2 |
10 | |
11 | Ignition coil, cylinder #1 and #4 |
12 | Ignition coil, cylinder #2 and #3 |
13 | |
14 | Idle stepping motor (A) |
15 | Idle stepping motor (B) |
16 | Evaporative purge solenoid relay control, ground |
17 | |
18 | Cooling fan relay control, ground |
19 | AFS active filter (MAF signal filter?) |
20 | A/C compressor clutch relay control, ground |
21 | Fuel pump relay control, ground |
22 | Check-engine light control, ground |
23 | |
24 | Injector #3 |
25 | |
26 | Rear O2 heater control |
27 | |
28 | Idle stepping motor (C) |
29 | Idle stepping motor (C) |
30 | A/C condenser fan relay control, high |
31 | A/C condenser fan relay control, low |
32 | MIVEC valve control |
33 | |
34 | General sensor ground |
35 | Evaporative ventilation solenoid relay control, ground |
C-119
41 | 42 | 43 | 44 | 45 | 46 | 47 | |||||
48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 |
60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 |
Pin | Description |
---|---|
41 | Wastegate solenoid relay control, ground |
42 | Throttle position sensor power (+5V) |
43 | Crankshaft position sensor signal |
44 | Coolant temperature sensor signal |
45 | Engine speed (RPM) |
46 | Chassis ground |
47 | 12V power (through MFI relay) |
48 | Fuel pressure solenoid control, ground |
49 | Sensor ground (O2, MAP, air temp, coolant, TPS) |
50 | Exhaust camshaft position sensor signal |
51 | MAF barometric pressure sensor signal |
52 | Alternator voltage regulator signal |
53 | Intake camshaft position sensor signal |
54 | Power steering pressure sensor signal |
55 | Fuel pump relay control, ground |
56 | |
57 | MFI relay control, ground |
58 | Chassis ground |
59 | 12V power (through MFI relay) |
60 | 12V power (backup ECU power, wired directly from battery) |
61 | MAF sensor signal |
62 | Intake air temperature sensor signal |
63 | |
64 | Aftermarket use: ADC 0F, typically used for map switching in TephraMod |
65 | Air conditioning control |
66 | |
67 | |
68 | Starter relay signal |
C-117
71 | 72 | 73 | 74 | JAE | 75 | 76 | 77 | |||||
78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 |
91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 |
Pin | Description |
---|---|
71 | Front O2 sensor signal |
72 | |
73 | Rear O2 sensor signal |
74 | |
75 | |
76 | |
77 | |
78 | Throttle position sensor signal |
79 | |
80 | Vehicle speed sensor signal |
81 | |
82 | |
83 | Air conditioning control |
84 | |
85 | Data link (OBD-II/MUT-III comms, pin 7 on OBD-II port, C-122) |
86 | |
87 | |
88 | Clutch pedal switch |
89 | |
90 | |
91 | Knock sensor signal |
92 | MAP sensor signal |
93 | Fuel tank pressure differential sensor signal |
94 | |
95 | Fuel level sender sensor signal (gauge) |
96 | Fuel temperature sensor signal |
97 | Fuel level sender sensor signal (low-fuel light) |
98 | Engine immobilizer system |
99 | Ignition switch IG1 (power when ignition in position "ON" and "START") |
100 | Data link (flash signal, pin 26 on diagnostic port, C-121) |