Ydt; Parts Connected To The Ecu - Yamaha TMAX 2020 Service Manual

TIP
*1: The ABS warning light goes off when the vehicle is judged to normal with running.
EAS32806

YDT

This model uses the YDT to identify malfunctions.
For information about using the YDT, refer to the operation manual that is included with the tool.
Yamaha diagnostic tool USB
90890-03267
Yamaha diagnostic tool (A/I)
90890-03264
TIP
• Yamaha diagnostic tool (A/I) (90890-03264) includes YDT sub harness (6P) (90890-03266).
• If you already have Yamaha diagnostic tool (A/I) (90890-03262), YDT sub harness (6P) (90890-
03266) is separately required.
• A GST can also be used to identify malfunctions.
Connecting the YDT
Remove the protective cap "1", and then connect the YDT to the coupler.
EAS32864

PARTS CONNECTED TO THE ECU

The following parts are connected to the ECU.
When checking for a power short circuit, the couplers must be disconnected from all of the following
parts beforehand.
• Crankshaft position sensor
• Injector #1
• Injector #2
• Ignition coil
• Throttle position sensor
• Accelerator position sensor
• Intake air pressure sensor
• Coolant temperature sensor
• Intake air temperature sensor
• O sensor
2
SELF-DIAGNOSTIC FUNCTION
1
• Fuel pump
• Lean angle sensor
• ABS ECU (Electronic Control Unit)
• Throttle servo motor
• Starter relay
• Ignition system relay
• Brake light relay
• Radiator fan motor relay
• Meter assembly
• Handlebar switch (left/right)
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