Yamaha XTZ690 2020, Service Manual

Page: 381 / 472

FUEL INJECTION SYSTEM
8-70
Fault code No. P0657
2 “01” is indicated in diagnostic
mode (code No. 60). EEPROM
data error for adjustment of CO
concentration of cylinder #1. Activate the CO volume adjust-
ment mode using the Yamaha
diagnostic tool.
Click the “Step up” or “Step
down” button 1 time. (Clicking
the “Step up” or “Step down”
button during this procedure
does not change the CO vol-
ume.)
Then, turn the main switch to
“OFF”.
For more information, refer to
the operation manual of the
Yamaha diagnostic tool. Set 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 “Recover”
→
Go to
item 6 and finish the service.
Condition is “Malfunction”
→
Repeat item 1.
If the same number is indicated,
go to item 5.
3 “02” is indicated in diagnostic
mode (code No. 60). EEPROM
data error for adjustment of CO
concentration of cylinder #2. Activate the CO volume adjust-
ment mode using the Yamaha
diagnostic tool.
Click the “Step up” or “Step
down” button 1 time. (Clicking
the “Step up” or “Step down”
button during this procedure
does not change the CO vol-
ume.)
Then, turn the main switch to
“OFF”.
For more information, refer to
the operation manual of the
Yamaha diagnostic tool. Set 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 “Recover”
→
Go to
item 6 and finish the service.
Condition is “Malfunction”
→
Repeat item 1.
If the same number is indicated,
go to item 5.
4 “11” is indicated in diagnostic
mode (code No. 60). EEPROM
data error for ISC (idle speed
control) learning values.
“12” is indicated in the diagnos-
tic mode. (Code No. 60) EE-
PROM data error for O
2
feedback learning values.
“13” is indicated in the diagnos-
tic mode. (Code No. 60) EE-
PROM data error for OBD
memory values.
Turn the main switch to “OFF”. Set 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 “Recover”
→
Go to
item 6 and finish the service.
Condition is “Malfunction”
→
Repeat item 1.
If the same number is indicated,
go to item 5.
5 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-130. Service is finished.
6 Delete the fault code and check
that the engine trouble warning
light goes off. Confirm that the fault code has
a condition of “Recover” using
the Yamaha diagnostic tool, and
then delete the fault code.
Fault code No. P0657
Item
Fuel system voltage: incorrect voltage supplied to the fuel injector
and fuel pump.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 09, 50