Yamaha FJR13AG Service Manual page 590

Fault code No.
Item
3 Wire harness continuity.
4 Installed condition of IMU.
5 Malfunction in IMU.
6 Malfunction in ECU.
7 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P1601
Fault code No.
Item
Fail-safe system
Diagnostic code No.
P1600
Signals cannot be transmitted between the ECU and the IMU.
Open or short circuit → Replace
the wire harness.
Between ECU coupler and joint
coupler.
blue/red–blue/red
blue/black–blue/black
Between joint coupler and IMU
coupler.
blue/red–blue/red
blue/black–blue/black
Between IMU coupler and igni-
tion fuse connector.
red/white–red/white
Between IMU and ground.
black–black
Check for looseness or pinch-
ing.
Check the rubber components
for deterioration.
Improperly installed sensor →
Reinstall or replace the sensor.
Replace the IMU.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-250.
Confirm that the fault code has
a condition of "Recovered" us-
ing the Yamaha diagnostic tool,
and then delete the fault code.
P1601
Sidestand switch: open or short circuit of the black/red lead of the
ECU is detected.
Unable to start engine
Unable to drive vehicle
20
8-113
FUEL INJECTION SYSTEM
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered" → Go
to item 7 and finish the service.
Condition is "Detected" → Go to
item 4.
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 7 and finish the service.
Condition is "Detected" → Go to
item 5.
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered" → Go
to item 7 and finish the service.
Condition is "Detected" → Go to
item 6.
Service is finished.