Citroen XM, ZX, Xantia - Engine RFZ, LFZ (1992-1996).pdf

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Pin Tables Copyright Equiptech
Number oof ECM
ECM pins:
pins: 555
Pin Connection
Connection
Test condition
condition
Volts/Duty Cycle
Cycle etc
etc
1
coil negative: t1 (cyls 1 & 4)
cranking
nbv
primary switching
200 min
dynamic volt drop
2.0 max
2
earth
ignition on/running
0.25 max
3
main relay driver: t10
ignition on
nbv
cranking/running
1.25 max
4
unused
5
CFSV : t1
ignition on
nbv
engine running, active
switching 0 to nbv
6
tachometer (if fitted)
7
MAP signal : t3
WOT/ignition on
4.35
Idle speed
1.5 approx
8
unused
9
VSS signal : t3
ignition on
nbv
vehicle moving
HE signal, when actuated
10 OS signal return : t4
engine running
0.25 max
11 CAS return : t1
cranking/running
0.25 max
12 sensor supply MAP: t1, TPS: t1 ignition on/running
5.0 ± 0.1
13 diagnostic socket : tC2,C3
ignition on
no major faults
nbv
major faults
0.25 max
14 earth
ignition on/running
0.25 max
15 ISCV : t3
ignition on
nbv
engine running
30 to 40%
16 diagnostic socket : tC1
17 injectors (pulse) : t1
ignition on/running
nbv
cranking cold
3.0+ ms
running cold
3.0 ms
cranking warm
2.4+ ms
running warm
2.0 ms
snap acceleration
6.0+ ms
18 battery positive: t30
ignition off/on
nbv
19 earth
ignition on/running
0.25 max
20 coil negative: t2 (cyls 2 & 3)
cranking
nbv
primary switching
200 min
dynamic volt drop
2.0 max
21 unused
22 diagnostic socket : tC2, C3
ignition on
no major faults
nbv
major faults
0.25 max
23 unused
24 unused
25 CTS signal : t2
ignition on/running
20°C 3.0 to 3.5
80°C 1.0 to 1.3
26 sensor return ATS: t1, CTS: t1,
MAP: t2, TPS: t2, VSS: t3
ignition on/running
0.25 max
27 ATS signal
ignition on/running
20°C 3.0 to 3.5
28 OS signal : t3
ignition key on
0.4 to 0.5
engine running
200 to 1000 mv
throttle fully open
1.0 constant
1
Number
Pin
Test
Volts/Duty
272663246.001.png
29 TPS signal : t3
Pin Tables Copyright Equiptech
0.3
fully open
5.0 approx
30 CAS signal : t2
cranking:
AC 2.0v+ (peak to peak)
Idle:
AC 11.0v+ (peak to peak)
cruise:
AC 14.0v+ (peak to peak)
31 unused
32 A/C
33 ISCV : t1
ignition on
nbv
engine running
duty cycle 30 to 40%
34 A/C
35 unused
36 unused
37 supply from main relay : t4
ignition on/running
nbv
38 unused
39 unused
40 unused
41 unused
42 unused
43 unused
44 unused
45 unused
46 unused
47 unused
48 unused
49 unused
50 unused
51 unused
52 unused
53 unused
54 unused
55 unused
< END
2
ignition on/running
closed
END >

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