Yamaha YZF-R1 Series Service Manual page 720

Lines short circuit check "B"
Accelerator position sensor coupler
ECU coupler "2"
A
1
L/Y B
B/L L/G
W B/Y
Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
a. Replace the wire harness.
b. Turn the main switch to "ON", and then check the condition of the DTC using the malfunction mode
of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 4.
4. Defective accelerator position sensor.
• Execute the diagnostic mode. (Code D14) (Accelerator position sensor signal 1.)
When the throttle valves are fully closed
When the throttle valves are fully open
• Execute the diagnostic mode. (Code D15) (Accelerator position sensor signal 2.)
When the throttle valves are fully closed
When the throttle valves are fully open
Is check result OK?
YES
→ Go to step 5.
NO
→ Replace the handlebar switch (right).
Refer to "HANDLEBARS" on page 4-83.
P2122, P2123, P2127, P2128, P2138
blue/yellow–any other coupler terminal
white–any other coupler terminal
black/blue–any other coupler terminal
blue/green–any other coupler terminal
black–any other coupler terminal
black/yellow–any other coupler terminal
blue/yellow–any other coupler terminal
white–any other coupler terminal
black/blue–any other coupler terminal
blue/green–any other coupler terminal
black–any other coupler terminal
black/yellow–any other coupler terminal
B
1
L/Y B
B/L L/G
W B/Y
9-223
2
L/Y L Y/B R/W
W W L/G B/R
B/G B B/G
B/L B B/Y W/Y
9–23
71–87
7–25
69–89