Yamaha FJR13AG Service Manual page 758

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
Fault code
Item
No.
P1604 [P1604] Lean angle
P1605 sensor (ground short
(FJR13AG circuit detected)
) [P1605] Lean angle
sensor (open or pow-
er short circuit detect-
ed)
P2122 [P2122] Accelerator
P2123 position sensor (open
P2127 or ground short cir-
P2128 cuit detected)
P2138 [P2123] Accelerator
position sensor (pow-
er short circuit detect-
ed)
[P2127] Accelerator
position sensor
(ground short circuit
detected)
[P2128] Accelerator
position sensor (open
or power short circuit
detected)
[P2138] Deviation er-
ror
P2158 Front wheel sensor
(no normal signals are
received from the
front wheel sensor)
Probable cause of
malfunction
[P1604] Low voltage Engine cannot be
of the lean angle sen- started.
sor circuit (0.2 V or
less)
[P1605] High voltage
of the lean angle sen-
sor circuit (4.8 V or
more)
• Open or short cir-
cuit in wire harness
between lean angle
sensor and ECU.
• Defective lean an-
gle sensor.
• Malfunction in ECU.
[P2122, P2127] Low Engine response is
voltage of the acceler- poor.
ator position sensor Loss of engine power.
circuit (0.25 V or less) Engine idling speed is
[P2123, P2128] High unstable.
voltage of the acceler-
ator position sensor
circuit (4.75 V or
more)
• Defective coupler
between accelera-
tor position sensor
and ECU.
• Open or short cir-
cuit in wire harness
between accelera-
tor position sensor
and ECU.
• Improperly installed
accelerator position
sensor.
• Defective accelera-
tor position sensor.
• Malfunction in ECU.
• Open or short cir- Traction control sys-
cuit in wire harness tem does not operate.
between front wheel Traction control sys-
sensor and ECU. tem indicator/warning
• Defective front light on the multi-func-
wheel sensor. tion meter comes on.
• Malfunction in ECU. "TCS" button on the
multi-function meter
cannot be used (the
traction control sys-
tem is turned off).
9-13
Fail-safe system op-
Vehicle symptom
Engine cannot be
started.
Change in the accel-
erator angle is 0 (tran-
sient control is not
carried out).
Accelerator angle is
fixed to 0 [°].
O
2
carried out.
YCC-T system does
not operate.
Output is restricted.
Fuel is not cut off due
to the accelerator an-
gle.
ISC feedback is not
carried out.
ISC learning is not
carried out.
Cruise control system
cannot be operated.
Traction control sys-
tem does not operate.
Cruise control system
cannot be operated.
(ECU)
eration
feedback is not