Difference between revisions of "USDM VIII ECU Pinout"
Jump to navigation
Jump to search
Line 6: | Line 6: | ||
{| border=0 cellspacing=0 cellpadding=5 | {| border=0 cellspacing=0 cellpadding=5 | ||
+ | !C-121!!C-119!!C-117!!C-115 | ||
+ | |- | ||
| | | | ||
{| border=1 cellspacing=0 style="text-align: center" | {| border=1 cellspacing=0 style="text-align: center" |
Revision as of 18:48, 29 November 2009
The USDM Evo VIII ECU uses a four-plug harness, with two rows of pins for each plug. The factory service manual refers to these plugs as C-121, C-119, C-117, and C-115.
For a picture of the ECU-side of the harness, see Road Race Engineering's EVO VIII pinout page.
Contents
Complete harness
C-121 | C-119 | C-117 | C-115 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
C-121
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
Pin | Description |
---|---|
1 | Injector #1 |
2 | Injector #3 |
3 | Fuel pressure solenoid |
4 | Idle air control motor, coil A1 |
5 | Idle air control motor, coil B1 |
6 | Exhaust gas recirculation solenoid relay control, ground |
7 | |
8 | A/C compressor clutch control, ground |
9 | Evaporative emission purge solenoid |
10 | Ignition coil, cylinder #1 and #4 |
11 | Turbocharger wastegate solenoid |
12 | 12V power (through MFI relay) |
13 | Chassis ground |
14 | Injector #2 |
15 | Injector #4 |
16 | |
17 | Idle air control motor, coil A2 |
18 | Idle air control motor, coil B2 |
19 | Volume airflow sensor reset (MAF filter?) |
20 | |
21 | A/C condenser fan control |
22 | Fuel pump relay |
23 | Ignition coil, cylinder #2 and #3 |
24 | A/C control (?) |
25 | 12V power (through MFI relay) |
26 | Chassis ground |
C-119
31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 |
39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 |
Pin | Description |
---|---|
31 | |
32 | A/C condenser fan relay (high) |
33 | Alternator voltage regulator, ground |
34 | A/C condenser fan relay (low) |
35 | Charge air cooler water spray fluid meter |
36 | Check-engine light |
37 | Power steering pressure sensor signal |
38 | MFI relay control, ground |
39 | Fuel pump relay control, ground |
40 | Sensor ground (IAT, cam position, fuel tank pressure, MDP, TPS) |
41 | Alternator voltage regulator signal |
42 | Aftermarket use: ADC 0F, typically used for map switching in TephraMod |
43 | Clutch pedal position switch |
44 | Charge air cooler water spray switch (auto control) |
45 | A/C control (?) |
46 | Fuel level sender signal (gauge) |
C-117
51 | 52 | 53 | 54 | 55 | 56 |
57 | 58 | 59 | 60 | 61 | 62 |
Pin | Description |
---|---|
51 | Engine immobilizer system |
52 | |
53 | |
54 | Rear O2 sensor signal |
55 | Evaporative emission ventilation solenoid |
56 | |
57 | Charge air cooler water spray relay control |
58 | Engine speed (RPM) |
59 | |
60 | Front O2 sensor signal |
61 | Fuel tank differential pressure sensor signal |
62 | Data link (OBD-II/MUT-III comms, pin 7 on OBD-II port, C-14) |
C-115
71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 |
82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 |
Pin | Description |
---|---|
71 | Starter relay signal |
72 | Intake air temperature sensor signal |
73 | MAP sensor signal |
74 | Fuel level sender signal (low-fuel light) |
75 | Rear O2 sensor heater control |
76 | Front O2 sensor heater control |
77 | Fuel temperature sensor signal |
78 | Knock sensor signal |
79 | Data link (flash signal, pin 26 on diagnostic port, C-15) |
80 | 12V power (backup ECU power, wired directly from battery) |
81 | Throttle position sensor power (+5V) |
82 | Ignition switch IG1 (power when ignition in postion "ON" and "START") |
83 | Coolant temperature sensor signal |
84 | Throttle position sensor signal |
85 | MAF barometric pressure sensor signal |
86 | Vehicle speed sensor signal |
87 | |
88 | Intake cam position sensor signal |
89 | Crankshaft position sensor signal |
90 | MAF sensor signal |
91 | Charge air cooler water spray switch (manual control) |
92 | Sensor ground (O2 heaters, coolant temp, tps signal, MAP, fuel tank pressure signal) |