Yamaha YZF-R6T Supplementary Service Manual page 449

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Fault code No. 12
Used diagnostic code No. – –
Inspection operation item and probable
cause
Installed condition of sensor
Defective crankshaft position sensor.
Open or short circuit in wiring harness.
Connected condition of connector
Inspect the coupler for any pins that may
have pulled cut.
Check the locking condition of the coupler.
email: info@motomatrix.co.uk
FUEL INJECTION SYSTEM
Symptom No normal signals are received from the crankshaft position sensor.
Operation item and countermeasure
Check the installed area for looseness or
pinching.
Replace if defective.
1. Disconnect the crankshaft position sensor cou-
pler from the wire harness.
2. Connect the pocket tester (Ω
crankshaft position sensor coupler as shown.
Tester positive probe ! gray
Tester negative probe ! black
3. Measure the crankshaft position sensor resis-
tance.
4. Is the crankshaft position sensor OK?
Repair or replace if there is an open or short
circuit between the main wiring harnesses.
Between sensor coupler and ECU coupler
Gray - Gray
Black / Blue - Black / Blue
If there is a malfunction, repair it and connect it
securely.
Crankshaft position sensor coupler
Main wiring harness ECU coupler
100) to the
1
2
Crankshaft position sensor
resistance
248 X 372 Ω at 20_C (68 _F)
(between gray and black)
7-13
FI
Reinstatement
method
Reinstated by
cranking the
engine.
2
1