Yamaha MBK X-MAX 300 2017 Service Manual page 377

Fault code No. P2158
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Locate the malfunction.
2 Connection of rear wheel sen-
sor coupler. Check the locking
condition of the coupler. Discon-
nect the coupler and check the
pins (bent or broken terminals
and locking condition of the
pins).
3 Connection of ABS ECU cou-
pler. Check the locking condition
of the coupler. Disconnect the
coupler and check the pins
(bent or broken terminals and
locking condition of the pins).
P2158
Rear wheel sensor: no normal signals are received from the rear
wheel sensor.
Able to start engine
Able to drive vehicle
–
–
–
Maintenance job
If the ABS warning light is on,
refer to "BASIC INSTRUC-
TIONS FOR TROUBLESHOOT-
ING" on page 8-85.
If the ABS warning light is off,
perform the following procedure.
Use the monitoring function of
the Yamaha diagnostic tool to
check the rear wheel speed
pulse. For information about us-
ing the Yamaha diagnostic tool,
refer to the operation manual
that is included with the tool.
Rotate the rear wheel by hand
and check the display value for
the rear wheel speed pulse. Dis-
play value for the rear wheel
speed pulse is greater than 0
(km/h) → Go to item 9 and de-
lete the fault code.
Display value for the rear wheel
speed pulse is 0 (km/h) → Go to
item 2.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-72
FUEL INJECTION SYSTEM
Confirmation of service com-
Rotate the rear wheel by hand
and check the display value for
the rear wheel speed pulse us-
ing the monitoring function.
Display value for the rear wheel
speed pulse is greater than 0
(km/h) → Go to item 9 and de-
lete the fault code.
Display value for the rear wheel
speed pulse is 0 (km/h) → Go to
item 3.
Rotate the rear wheel by hand
and check the display value for
the rear wheel speed pulse us-
ing the monitoring function.
Display value for the rear wheel
speed pulse is greater than 0
(km/h) → Go to item 9 and de-
lete the fault code.
Display value for the rear wheel
speed pulse is 0 (km/h) → Go to
item 4.
pletion