Yamaha tmax XP500A, Service Manual

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FI
FUEL INJECTION SYSTEM
Fault code No. 37 Symptom Engine idling speed is too high.
Used diagnostic code No. 01 (throttle position sensor)
Order Inspection operation item and
probable cause Operation item and countermeasure Reinstatement
method
1 Stuck FID valve detected. Inspect the throttle body.
Replace if defective.
Refer to “THROTTLE BODY”. Reinstated by
starting the engine
and operating it at
idle for about 5
minutes. Do not
turn the throttle
grip.
2 Defective throttle fully closed. Inspect the throttle body.
Replace if defective.
Refer to “THROTTLE BODY”.
Fault code No. 41 Symptom Open or short circuit detected in the lean angle cut-off switch.
Used diagnostic code No. 08 (lean angle cut-off switch)
Order Inspection operation item and
probable cause Operation item and countermeasure Reinstatement
method
1 Defective lean angle cut-off switch Replace if defective.
Refer to “Fault code No. 30”. Reinstated by turn-
ing the main switch
ON.
2 Open or short circuit in wiring har-
ness. Repair or replace if there is an open or short circuit.
Between switch coupler and ECU (engine) coupler
black/blue – black/blue
yellow/green – yellow/green
blue – blue
3 Connected condition of connector
Inspect the coupler for any pins
that may have pulled out.
Check the locking condition of the
coupler.
If there is a malfunction, repair it and connect it
securely.
Lean angle cut-off switch coupler
Main wiring harness ECU (engine) coupler