P1606, P1607; Troubleshooting - Yamaha XSR 900 2022 Service Manual

EAS20787

P1606, P1607

EAS33530

TROUBLESHOOTING

Item
• [P1606] Intake air pressure sensor 2: short to ground circuit is detected. Normal signal is not received
from the intake air pressure sensor 2 circuit.
• [P1607] Intake air pressure sensor 2: open or short to power circuit is detected. Normal signal is not
received from the intake air pressure sensor 2 circuit.
Fail-safe system
• Able to start engine
• Able to drive vehicle
Procedure
1. Connection of intake air pressure sensor 2 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).
Is the coupler condition normal?
YES
→ Go to step 2.
NO
a. Connect the coupler securely or replace the wire harness.
b. Turn the main switch to "ON", and then check the DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to step 2.
2. Connection of 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).
Is the coupler condition normal?
YES
→ Go to step 3.
NO
a. Connect the coupler securely or replace the wire harness.
b. Turn the main switch to "ON", and then check the DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to step 3.
9-236
P1606, P1607