Yamaha YZF-R7, Owner'S Service Manual

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ELEC
ELECTRICAL CONTROL SYSTEM
Test coupler adapter method
• Remove the bottom cowling and the front
cowling.
Refer to “COWLINGS” in chapter 3.
• Remove the protection cap 1 from the EFI
test coupler 2 .
• Connect the test coupler adapter 3 to the
EFI test coupler 2 .
• Disconnect the fuel pump coupler from
the wire harness.
• Turn the main switch to “ON”.
• Turn the engine stop switch to “
”.
• Press the start switch ten times within 4
seconds to enter the diagnosis mode.
The warning light flashes when the unit
has entered the diagnosis mode.
NOTE:
Turn the main switch to “OFF” to cancel the
diagnosis mode.
Operation after entering the diagnosis
mode
• Select a diagnosis code by pressing the
start switch. Refer to the diagnosis code
list.
First, press the start switch once to select
diagnosis code 01. Afterwards, each press
of the start switch increases the diagnosis
code number by one. If diagnosis code 31
is selected, pressing the start switch once
selects diagnosis code 00.
• Turn the engine stop switch to “ ” to
start the test for the selected diagnosis
code.
NOTE:
To select another diagnosis code, turn the
engine stop switch to “
”, and then press
the start switch.
Example:
First, select diagnosis code 29 as follows.
• Turn the engine stop switch to “
”.
• Press the start switch 29 times.
• Turn the engine stop switch to “
”.
Next, select diagnosis code 10 as follows.
• Turn the engine stop switch to “
”.
• Press the start switch 13 times.
• Turn the engine stop switch to “
”.
Test coupler adapter
90890-03149