TGB BLADE 600 Service Manual page 88

4-1. FUEL INJECTION SYSTEM
Is the voltage OK?
YES Go to step 2
• Loose or poor contacts on the ECU
coupler (terminal 42 or 27)
NO
• Open or short circuit in the Y/R wire
or Gr/R wire
Step 1
(When sensor voltage is higher than specified)
1) Turn the ignition switch OFF.
2) Check the ECT sensor coupler for loose or
poor contacts.
If OK, then check the ECT sensor lead wire
continuity.
3) Remove the left side cover.
4) Disconnect the ECT sensor coupler.
5) Remove the ECU coupler.
6) Check the continuity between Y/R wire and
terminal 42.
7) Also, check the continuity between Gr/R wire
and terminal 27.
ECTS lead wire continuity: Continuity (sound)
Is the continuity OK?
YES Go to step 2
NO Y/R or Gr/R wire open
8) After repairing the trouble, clear the DTC
using Diagnosis tool.
Step 1
(When sensor voltage is lower than specified)
1) Turn the ignition switch OFF.
2) Check the ECT sensor coupler for loose or
poor contacts.
If OK, then check the ECT sensor lead wire
continuity.
3) Disconnect the ECT sensor coupler.
4) Check the continuity between Y/R wire and
ground.
5) If the sound is not heard from the tester, the
circuit condition is OK.
Tester knob indication: Continuity (sound)
4-1-40
42