Yamaha FJR1300A(D), Service Manual

Page: 503 / 662

FUEL INJECTION SYSTEM
8-54
3 Wire harness continuity. Open or short circuit
→
Re-
place the wire harness.
Between atmospheric pres-
sure sensor coupler and
ECU coupler.
pink–pink
Between atmospheric pres-
sure sensor coupler and joint
coupler.
blue–blue
black/blue–black/blue
Between joint coupler and
ECU coupler.
blue–blue
black/blue–black/blue
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 4.
4 Installed condition of atmo-
spheric pressure sensor.
Check for looseness or
pinching. Improperly installed sensor
→
Reinstall or replace the
sensor.
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 5.
5 Defective atmospheric pres-
sure sensor. Execute the diagnostic
mode. (Code No. 02)
When engine is stopped:
Atmospheric pressure at the
current altitude and weather
conditions is indicated.
At sea level: Approx. 101 kPa
(757.6 mmHg, 29.8 inHg)
1000 m (3300 ft) above sea
level: Approx. 90 kPa (675.1
mmHg, 26.6 inHg)
2000 m (6700 ft) above sea
level: Approx. 80 kPa (600.0
mmHg, 23.6 inHg)
3000 m (9800 ft) above sea
level: Approx. 70 kPa (525.0
mmHg, 20.7 inHg)
Displayed value is incorrect
→
Check the atmospheric
pressure sensor.
Replace if defective.
Refer to “CHECKING THE
ATMOSPHERIC PRES-
SURE SENSOR” on page
8-190.
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 6.
6 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-174.
Fault code No. 23
Item Atmospheric pressure sensor: open or short circuit detected.