Yamaha FJR13AG Service Manual page 598

Fault code No.
Item
3-1
1
1. Accelerator position sensor
2. ECU
3. Sensor input lead
4. Sensor output lead
5. Sensor ground lead
3-2 Disconnect the ECU coupler from the ECU.
Disconnect the accelerator position sensor coupler from the accelerator position sensor.
3-3 [For P2122] Ground short circuit
[For P2138] Deviation error
Between accelerator position sensor coupler and ground: white–ground
If there is continuity, replace the wire harness.
3-4 [For P2127] Ground short circuit
[For P2138] Deviation error
Between accelerator position sensor coupler and ground: black–ground
If there is continuity, replace the wire harness.
P2122, P2123, P2127, P2128, P2138
[P2122] Accelerator position sensor: open or ground short circuit
detected.
[P2123] Accelerator position sensor: power short circuit detected.
[P2127] Accelerator position sensor: ground short circuit detected.
[P2128] Accelerator position sensor: open or power short circuit de-
tected.
[P2138] Deviation error
3
L L
4
W W
4
B B
5
B/L B/L
W B/L L B
W B/L L B
8-121
FUEL INJECTION SYSTEM
2
5V 5V