Yamaha YZF-R1 Series Service Manual page 604

Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
a. Replace the wire harness.
b. Turn the main switch to "ON", and then check the condition of the DTC using the malfunction mode
of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to step 4.
4. Installed condition of intake air pressure sensor.
• Check for looseness or pinching.
Is check result OK?
YES
→ Go to step 5.
NO
a. Reinstall or replace the sensor.
b. Turn the main switch to "ON", and then check the condition of the DTC using the malfunction mode
of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to step 5.
5. Defective intake air pressure sensor.
• Execute the diagnostic mode. (Code D03)
• When engine is stopped: Atmospheric pressure at the current altitude and weather conditions is in-
dicated.
At sea level
1000 m (3300 ft) above sea level
2000 m (6700 ft) above sea level
3000 m (9800 ft) above sea level
• When engine is cranking: Make sure that the indication value changes.
Is check result OK?
YES
→ Go to step 6.
NO
a. Replace the intake air pressure sensor.
Refer to "THROTTLE BODIES" on page 7-11.
b. Turn the main switch to "ON", and then check the condition of the DTC using the malfunction mode
of the YDT.
Approx. 101 kPa (757.6 mmHg, 29.8 inHg), approx.
3.64 V
Approx. 90 kPa (675.1 mmHg, 26.6 inHg), approx.
3.30 V
Approx. 80 kPa (600.0 mmHg, 23.6 inHg), approx.
3.00 V
Approx. 70 kPa (525.0 mmHg, 20.7 inHg), approx.
2.70 V
9-107
P0107, P0108