Suzuki DF 90 - Page 90

3-42 ENGINE CONTROL SYSTEM
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(White connector)
(Black connector)
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Wire harness
CMP SENSOR SIGNAL
\ 09930-89950 : 44-pin test cord
09930-99320 : Digital tester
U Tester range :


 V (DC voltage)
1. Remove CMP sensor. (See page 3-53.)
2. Connect 44-pin test cord between ECM and wire harness
as shown in figure.
3. Connect tester probe + (Red) to No.33 terminal.
4. Connect tester probe - (Black) to No.11 terminal (or to
body ground).
5. Turn ignition switch ON.
6. Measure voltage when steel tip of a screwdriver is brought
near and then pulled away from sensor tip.
CMP sensor signal : Approx. 0.3V or 5V
IGNITION SECONDARY COIL RESISTANCE
\ 09930-99320 : Digital tester
V Tester range :
Ω Ω
Ω Ω
Ω (Resistance)
1. Disconnect spark plug caps from spark plugs.
2. Measure resistance between both spark plug caps as shown
in figure.
Ignition secondary coil resistance :
No. 2&3 18 – 34 k
ΩΩ
ΩΩ
Ω
No. 1&4 19 – 36 k
ΩΩ
ΩΩ
Ω
NOTE:
Two signal voltages mentioned above (0.3V or 5V) will
change by repeating movement of screwdriver.
1
2
1
2
1. Screwdriver
2. CMP sensor
1. Screwdriver
2. CMP sensor