Inspection For Resistance - Suzuki DF 90 Service Manual

3-38 ENGINE CONTROL SYSTEM

INSPECTION FOR RESISTANCE

09930-99320 : Digital tester
Tester range : Ω Ω Ω Ω Ω (Resistance)
NOTE:
Make sure ignition switch is always OFF when measuring resistance.
1. Disconnect battery cables from battery.
2. Disconnect wire harness connector from ECM.
3. Connect the tester probes to terminal (wire harness side), and
measure resistance according to "RESISTANCE TABLE".
RESISTANCE TABLE
ITEM
CKP sensor
Ignition coil No.1&4 (Primary)
Ignition coil No.2&3 (Primary)
Fuel injector No.1
Fuel injector No.2
Fuel injector No.3
Fuel injector No.4
IAC valve
IAT sensor
Cylinder temperature sensor
Ex-mani. temperature sensor
ECM main relay
Wire harness
TERMINAL FOR TESTER
PROBE CONNECTION
15 (R/B) to 11(B/W)
30 (Gr) to 44 (O)
30 (Gr) to 43 (Bl)
30 (Gr) to 40 (O/B)
30 (Gr) to 39 (B/Y)
30 (Gr) to 38 (R/W)
30 (Gr) to 22 (Lg)
30 (Gr) to 18 (B/R)
31 (Lg/B) to 11 (B/W)
9 (Lg/W) to 11 (B/W)
7 (V/W) to 11(B/W)
13 (P/B) to Terminal (A) [NOTE1]
STANDARD RESISTANCE
(at 20°C)
168 – 252 Ω
1.9 – 2.5 Ω
11.0 – 16.5 Ω
8 – 12 Ω
0°C ( 32°F) : 5.3 – 6.6 kΩ
25°C ( 77°F) : 1.8 – 2.3 kΩ
50°C (122°F) : 0.73 – 0.96 kΩ
75°C (135°F) : 0.33 – 0.45 kΩ
(Thermistor characteristic)
80 – 120 Ω