Hola amigo,
este es el pinout para la ECU de tu auto
Focus ecu pinout
1 shift solenoid - B gn/bu
2 not used
3 IMRC module signal wh/rd
4 Transmission range sensor - reverse gn/bu
5 not used
6 not used
7 transmission range sensor - 1st / EVAP vent valve gn/wh - bk/og
8 transmission range sensor - 2nd gn/og
9 Barometric absolute pressure sensor wh/bk
10 not used
11 transmission range sensor - drive gn/bk
12 switched ground bk/wh
13 Flash EEPROM power supply og/bk
14 not used
15 SCP - bu/bk
16 SCP + gy/og
17 switched ground bk/wh
18 not used
19 TX signal gy/og
20 Injector 3 control bk/bu
21 crankshaft position sensor + wh/rd
22 crankshaft position sensor - bn/rd
23 ground bk/ye
24 ground bk/ye
25 ground bk
26 switched ground CDA (coil 1-) bk/og
27 start inhibit relay circuit bk/rd
28 vehicle speed signal output wh/vt
29 overdrive cancel switch input gn/bk
30 not used (12v input from auto tranny only. DO NOT hook this up on manual trans ecu's, you will fry them)
31 Power steering pressure sw input / press. sensor bk/yel / wht/vt
32 sensor return (reference/ground) bn/ye
33 Output shaft speed sensor - bn/bu
34 turbine speed sensor + wh/vt
35 HO2S 2 signal wh/rd
36 MAF return bn/bu
37 transmission fluid temp + wh/gn
38 cylinder head temp / coolant temp sensor wht/vt / wh
39 MAF input wh/vt
40 fuel pump monitor gn/bk
41 A/C clutch pressure cycling switch input gn/ye
42 PATS indicator control bk/og
43 sensor signal wh/bu
44 Pressure control solenoid A + gn/og
45 Camshaft timing actuator control bk/rd
46 Low fuel indicator bk/wh
47 electronic vacuum regulator solenoid valve control bk/gn
48 not used (tach signal, anything needing this signal can be hooked here)
49 CAN bus L bu/rd
50 CAN bus H gy/rd
51 ground bk/ye
52 switched ground CDB bk/gn
53 RX signal wh/gn
54 fuel pump output / switched ground bk/wh - bk/bu
55 hot at all times rd
56 EVAP purge valve control bk/bu
57 Knock sensor + wh/bk
58 VSS / OSS + wh/bu - wh/bu
59 generator monitor circuit gy
60 HO2S 1 signal wh
61 not used
62 fuel tank pressure transducer sensor signal wt/vt
63 fuel rail pressure transducer sensor signal wh/gn
64 transmission range sensor P/N / clutch switch grn/yel / wht
65 exhaust pressure transducer signal wh/bu
66 not used
67 EVAP canister vent control bk/og
68 switched ground bk/bu
69 switched ground bk/ye
70 injector 1 control bk/wh
71 power hold relay output (VPWR) gn/ye
72 generator communicator command lb
73 shift solenoid - A / check fuel cap light grn/yel / blk/wht
74 not used
75 gnd (power return) bk/wh
76 turbine speed sensor - / signal return / sig rtn bn - wh/vt - bn/wh
77 power ground bk/ye
78 not used
79 not used
80 IMRC control bk/wh
81 pressure control solenoid A- bk/rd
82 Shift solenoid C gn/bk
83 idle air control valve control grn/yel
84 not used
85 camshaft position sensor signal / sensor sig rtn wh/vt - bn/wh
86 sensor signal wh/rd
87 knock sensor - bn/ye
88 MAF output wh/bu
89 throttle position sensor signal wh
90 VREF ye
91 transmission fluid temp - bn
92 stop lamp switch input gn/rd
93 HO2S 1 control bk/ye
94 not used
95 injector 4 control bk/og
96 injector 2 control bk/ye
97 power hold relay output gn/ye
98 not used
99 shift solenoid D gn/og
100 HO2S 2 control bk/bu
101 not used
102 shift solenoid E gn/wh
103 ground bk/ye
104 not used
Debes conectar el cable de señal del tacómetro al pin 48 de la ECU que tiene la señal que necesitas.