Yamaha TMAX XP530E-A 2017 Service Manual page 492

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Fault code No.
Item
3
Check the main fuse.
4
Wire harness continuity
between starter relay and ECU
coupler.
5
Wire harness continuity
between starter relay and bat-
tery.
6
Malfunction in ECU.
7
Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P1604, P1605
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
P1602
Malfunction in ECU internal circuit (malfunction of ECU power cut-
off function).
Blown fuse  Replace the fuse. Push the ON/start switch, and
Open or short circuit  Replace
the wire harness.
Between starter relay and ECU
coupler.
red–red
Open or short circuit  Replace
the wire harness.
Between starter relay and bat-
tery.
red–red
Replace the ECU.
Confirm that the fault code has
a condition of "Recovered"
using the Yamaha diagnostic
tool, and then delete the fault
code.
P1604, P1605
[P1604] Lean angle sensor: ground short circuit detected.
[P1605] Lean angle sensor: open or power short circuit.
Unable to start engine
Unable to drive vehicle
08
Lean angle sensor output voltage
• 0.4–1.4 (upright)
• 3.7–4.4 (overturned)
Remove the lean angle sensor and incline it more than 65 degrees.
Maintenance job
8-101
FUEL INJECTION SYSTEM
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item 7 and finish the service.
Condition is "Detected"  Go to
item 4.
Push the ON/start switch, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item 7 and finish the service.
Condition is "Detected"  Go to
item 5.
Push the ON/start switch, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item 7 and finish the service.
Condition is "Detected"  Go to
item 6.
Service is finished.
Confirmation of service com-
pletion

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