Maintenance Manual for Chery·Windcloud Marelli EFI System
ECU Pin Definition:
Pin Connected to Pin Connected to
1 Not in use 41 Air conditioning compressor relay control
2 Not in use 42 Not in use
3 Not in use 43 Not in use
4 Engine speed signal 44 Oxygen sensor ground
5 Not in use 45 Not in use
6 Not in use 46 Not in use
7 Not in use 47 Power supply (ignition key)
8 Not in use 48 Air conditioner ON signal
9 Oxygen sensor signal (-) 49 Not in use
10 Not in use 50 Vehicle speed signal
11 Not in use 51 Not in use
12 Not in use 52 Electromagnetic carbon canister valve
control
13 Dual-way anti-theft wire 53 Rotational speed sensor signal (+)
14 High speed fan relay control 54 Coolant temperature sensor ground
15 Injection relay control 55 Air intake temperature signal
16 Not in use 56 Knock sensor signal (+)
17 Not in use 57 Idle speed stepper motor C
18 Not in use 58 Idle speed stepper motor D
19 Not in use 59 Ignition coil control (1, 4)
20 Oxygen sensor (+) 60 Throttle position sensor power (+5V)
21 High speed fan request 61 Not in use
22 Not in use 62 Coolant temperature sensor signal
23 Not in use 63 Knock sensor ground
24 Not in use 64 Idle speed stepper motor B
25 Diagnose (serial K wire) 65 Idle speed stepper motor A
26 Fault indicating lamp control 66 Ignition coil control (2, 3)
27 Power supply ground 67 Rotational speed sensor signal (-)
28 Power supply ground 68 TEMP sensor power (+5V)
29 ECU power (12V) 69 Not in use
30 Not in use 70 Knock sensor signal (-)
31 Not in use 71 Injector control 1
32 Not in use 72 Injector control 4
33 Not in use 73 Not in use
34 Not in use 74 Not in use
35 Low speed fan request 75 Pressure sensor signal
36 Not in use 76 Throttle position sensor signal
37 Not in use 77 Rotational speed sensor ground
38 Not in use 78 Injector control 3
39 Not in use 79 Injector control 2
40 Low speed fan control relay 80 Not in use
7
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