Yamaha FJR13AG, Service Manual

Page: 556 / 784

FUEL INJECTION SYSTEM
8-79
Fault code No. P0122, P0123, P0222, P0223, P2135
Item
[P0122, P0222] Throttle position sensor: ground short circuit detect-
ed.
[P0123, P0223] Throttle position sensor: open or power short circuit
detected.
[P2135] Deviation error
Fail-safe system
Able/Unable to start engine
Able/Unable to drive vehicle
Diagnostic code No. 01, 13
01
Tool display
Throttle position sensor signal 1
• 12–21 (fully closed position)
• 97–106 (fully open position)
Procedure
• Check with throttle valves fully closed.
• Check with throttle valves fully open.
13
Tool display
Throttle position sensor signal 2
• 9–23 (fully closed position)
• 94–108 (fully open position)
Procedure
• Check with throttle valves fully closed.
• Check with throttle valves fully open.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
1 Connection of throttle position
sensor coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Turn the main switch to “ON”,
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is “Recovered”
→
Go
to item 8 and finish the service.
Condition is “Detected”
→
Go to
item 2.
2 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Turn the main switch to “ON”,
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is “Recovered”
→
Go
to item 8 and finish the service.
Condition is “Detected”
→
Go to
item 3.
3 Wire harness continuity. Open or short circuit
→
Replace
the wire harness.
Turn the main switch to “ON”,
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is “Recovered”
→
Go
to item 8 and finish the service.
Condition is “Detected”
→
Go to
item 4.