Yamaha TRACER MT09TRA Service Manual page 431

Fault code No.
Item
Meter display
Procedure
Item Probable cause of
malfunction and check
1 Connection of intake air pres-
sure sensor 1 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).
2 Connection of wire harness
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).
3 Wire harness continuity.
4 Installed condition of intake air
pressure sensor 1.
Check for looseness or pinch-
ing.
13
Intake air pressure sensor 1: open or short circuit detected.
Displays the intake air pressure.
Operate the throttle while pushing the "
switch. (If the display value changes, the performance is OK.)
Maintenance job
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
Open or short circuit  Replace
the wire harness.
Between intake air pressure
sensor 1 coupler and ECU cou-
pler.
pink–pink
Between intake air pressure
sensor 1 coupler and joint con-
nector.
blue–blue
black/blue–black/blue
Between joint connector and
ECU coupler.
blue–blue
black/blue–black/blue
Improperly installed sensor 
Reinstall or replace the sensor.
8-40
FUEL INJECTION SYSTEM
" side of the start/engine stop
Confirmation of service com-
Turn the main switch to "ON".
Fault code number is not dis-
played  Service is finished.
Fault code number is displayed
 Go to item 2.
Turn the main switch to "ON".
Fault code number is not dis-
played  Service is finished.
Fault code number is displayed
 Go to item 3.
Turn the main switch to "ON".
Fault code number is not dis-
played  Service is finished.
Fault code number is displayed
 Go to item 4.
Turn the main switch to "ON".
Fault code number is not dis-
played  Service is finished.
Fault code number is displayed
 Go to item 5.
pletion