Yamaha TMAX 2020 Service Manual page 593

EAS20589
P0507
EAS33069
TROUBLESHOOTING
Item
Engine idling speed is too high.
Fail-safe system
• Able to start engine
• Able to drive vehicle
Procedure
TIP
If more than one DTC is detected at the same time, perform troubleshooting of DTC listed below first.
• P0560, P0638, P0500
1. Intake system abnormal (intake of secondary air supply).
• Check the throttle bodies.
Refer to "THROTTLE BODY" on page 7-5.
Is check result OK?
YES
 Go to step 2.
NO
a. Replace the throttle bodies.
b. Start the engine and let it idle for approximately 5 minutes.
c. Push the ON/start switch, 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 4, and complete the service.
NO
 Go to step 2.
2. ISC learning overcompensated.
• Check the intake system and clean the throttle bodies.
Refer to "CHECKING AND CLEANING THE THROTTLE BODIES" on page 7-10.
Is check result OK?
YES
 Go to step 3.
NO
a. Execute the diagnostic mode. (Code No. 67)
b. Execute clearing of the ISC learning data.
c. Start the engine and let it idle for approximately 5 minutes.
d. Push the ON/start switch, 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 4, and complete the service.
NO
 Go to step 3.
9-119
P0507