Suzuki FL125S Service Manual page 334

8-59 FL125SDW
Step 2
1) Turn the ignition switch OFF.
2) Disconnect the ET sensor coupler.
3) Measure the ET sensor resistance between B wires.
! ET sensor resistance: Approx. 13.0 kΩ at 20 °C
$ 09900-25008: Multi-circuit tester set
& Tester knob indication: Resistance (Ω)
Refer to page 78 for details.
Is the resistance OK?
• O/B or Br/B wire open or shorted to ground, or
poor K or 4 connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
YES
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Replace the ET sensor with a new one.
%
When using the multi-circuit tester, do not strongly
touch the terminal of the ECM coupler with a needle
pointed tester probe to prevent the terminal damage
or terminal bend.
4) After repairing the trouble, clear the DTC using SDS tool.
(#8-39)
! ET sensor specification
Engine temperature
20 °C
40 °C
80 °C
100 °C
Approx. 6.2 kΩ at 40 °C
(B – B)
Resistance
Approx. 13.0 kΩ
Approx. 6.2 kΩ
Approx. 1.7 kΩ
Approx. 1.0 kΩ
2
2
ECM coupler (Harness side)