P0117, P0118; Troubleshooting - Yamaha XSR 900 2022 Service Manual

EAS20569

P0117, P0118

EAS33049

TROUBLESHOOTING

Item
• [P0117] Coolant temperature sensor: short to ground circuit is detected. Normal signal is not received
from the coolant temperature sensor circuit.
• [P0118] Coolant temperature sensor: open or short to power circuit is detected. Normal signal is not
received from the coolant temperature sensor circuit.
Fail-safe system
• Able to start engine
• Able to drive vehicle
Procedure
TIP
Perform this procedure when the engine is cold.
1. Connection of coolant temperature sensor 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.
9-123
P0117, P0118