3-56
ENGINE CONTROL SYSTEM
IGNITION COIL OPERATING SIGNAL
34 pin test cord
(White connector)
27
28
29
30 31
32 33 34 35 36 37 38 39
44
40
41
42
43
57
" 09930-89340: 26-pin & 34-pin test cord
Peak voltmeter Stevens CD-77
' Tester range: SEN 50
1. Connect test cord between ECM and wire harness as shown
in figure then turn ignition switch ON.
2. Connect the tester probe ("+", Red) to each terminal.
Ignition coil
Terminal
No. 1
42
No. 2
50
No. 3
39
No. 4
45
No. 5
37
No. 6
38
3. Connect the tester probe ("-" Black) to No. 46 terminal (or
to body ground).
4. Crank engine and measure voltage.
Ignition coil operating signal: Approx. 5 V
ECM
45
46
47 48
49 50 51 52 53 54 55 56
58
59
60
(Black connector)
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
(White connector)
42
Wire color
(engine harness)
O
Bl
Gr/Y
Lg/R
W/G
Bl/Y
26 pin test cord
(Black connector)
37
38 39
(White connector)
45
46
50
(Black connector)
34 pin test cord