Suzuki GSX-R1000 2007, Service Manual

Page: 207 / 549

4-52 FI SYSTEM DIAGNOSIS
Step 2
1) Turn the ignition switch OFF.
2) Disconnect the ECT sensor coupler.
3) Measure the ECT sensor resistance.
ECT sensor resistance:
Approx. 2.45 k
Ω
at 20 °C (68 °F)
(Terminal – Terminal)
\
09900-25008: Multi-circuit tester set
V
Tester knob indication: Resistance (
Ω
)
Refer to page 7-7 for details.
Is the resistance OK?
4) After repairing the trouble, clear the DTC using SDS tool.
( 4-28)
ECT sensor specification
YES
• B/Bl or B/Br wire open or shorted to ground, or
poor
7
or
:
connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• 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 ECT sensor with a new one.
Engine Coolant Temp Resistance
20 °C (68 °F) Approx. 2.45 k
Ω
50 °C (122 °F) Approx. 0.811 k
Ω
80 °C (176 °F) Approx. 0.318 k
Ω
110 °C (230 °F) Approx. 0.142 k
Ω
2
ECM coupler (Harness side)
2
(Black) (Gray)