Yamaha FJR13AG Service Manual page 596

Fault code No.
Item
3-6 [For P1605] Open circuit
Between lean angle sensor coupler and ECU coupler: black/blue–black/blue
If there is no continuity, replace the wire harness.
3-7 Disconnect the couplers from the parts that are connected to the ECU.
Refer to "Parts connected to the ECU" on page 8-63.
3-8 [For P1604, P1605] Short circuit
Between lean angle sensor output terminal (yellow/green) "a" of ECU coupler and any other ECU
coupler terminal "b".
If there is continuity, replace the wire harness.
4 Defective lean angle sensor.
5 Malfunction in ECU.
6 Delete the fault code and check
that the engine trouble warning
light goes off.
P1604, P1605
[P1604] Lean angle sensor: ground short circuit detected.
[P1605] Lean angle sensor: open or power short circuit.
Y/R R/L O/W W/B
B/R L/W Br/L
L Y/G B/L B/L B/W W/G Lg/L
B/L B/L B/Y Lg/B
Y/R R/L O/W W/B Gy/W
B/R L/W Br/L G/L
B/L B/W W/G Lg/L
B/L B/L B/Y Lg/B
b
Execute the diagnostic mode.
(Code No. 08)
Replace if defective.
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.
8-119
FUEL INJECTION SYSTEM
Gy/W W W G/W L/R
B B
G/L Br/W L/B
P P/W L L
W/Y L/Y Gy Y/G
W W G/W L/R
B B Br/W L/B
a
P P/W L L
W/Y L/Y Gy Y/G
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 6 and finish the service.
Condition is "Detected" → Go to
item 5.
Service is finished.