3-38 ENGINE CONTROL SYSTEM
Wire harness
INSPECTION FOR RESISTANCE
\ 09930-99320 : Digital tester
V 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
TERMINAL FOR TESTER
PROBE CONNECTION
STANDARD RESISTANCE
(at 20°C)
CKP sensor 15 (R/B) to 11(B/W)
Ignition coil No.1&4 (Primary) 30 (Gr) to 44 (O)
Ignition coil No.2&3 (Primary) 30 (Gr) to 43 (Bl)
Fuel injector No.1 30 (Gr) to 40 (O/B)
Fuel injector No.2 30 (Gr) to 39 (B/Y)
Fuel injector No.3 30 (Gr) to 38 (R/W)
IAC valve 30 (Gr) to 18 (B/R)
IAT sensor 31 (Lg/B) to 11 (B/W)
Cylinder temperature sensor
Ex-mani. temperature sensor
ECM main relay
7 (V/W) to 11(B/W)
13 (P/B) to Terminal (A) [NOTE1]
9 (Lg/W) to 11 (B/W)
168 – 252 Ω
11.0 – 16.5 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
1.9 – 2.5 Ω
Fuel injector No.4
30 (Gr) to 22 (Lg)
8 – 12 Ω
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