Yamaha XV1700PCRC Service Manual page 453

Code No. 37
Used diagnostic code No. 54 (linear control valve)
No. 10 (oil temperature sensor)
Inspection operation item and probable cause Operation item and countermeasure
1-1.Defective linear control valve
Check the operating sound or that the
warning light is on 3 times with engine
stop switch ON.
1-2.Open or short circuit in wiring harness or
sub lead.
1-3.Connected state of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
1-4.Installed state of linear control valve
2-1.Open or short circuit in wiring harness or
sub lead.
2-2.Connected state of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
2-3.Defective oil temperature sensor.
Code No. 38
Used diagnostic code No. 55 (decompression solenoid)
Inspection operation item and probable cause Operation item and countermeasure
1.Installed state of sensor
2.Open or short circuit in wiring harness or
sub lead.
3.Connected state of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
4.Defective decompression solenoid.
FUEL INJECTION SYSTEM
Symptom Faulty liner control valve or motor is detected.
Replace if defective.
Refer to "FUEL INJECTION SYSTEM" in
chapter 7.
Repair or replace if there is an open or short
circuit.
Main wiring harness
Red/Black - Red/Black
Brown/Blue - Brown/Blue
White/Green - White/Green
Pink/Blue - Pink/Blue
Red/Green - Red/Green
If there is a malfunction, repair it and connect it
securely.
Main wiring harness linear control valve cou-
pler
Main wiring harness ECU coupler
Check the installed area for looseness or
pinching.
Repair or replace if there is an open or short
circuit.
Main wiring harness
Black/Blue - Black/Blue
White - White
If there is a malfunction, repair it and connect it
securely.
Main wiring harness oil temperature sensor
coupler
Main wiring harness ECU coupler
Replace if defective.
Refer to "FUEL INJECTION SYSTEM" in
chapter 7.
Symptom Open or short circuit is detected from the decompression solenoid.
Check the installed area for looseness or
pinching.
Repair or replace if there is an open or short
circuit.
Main wiring harness
Gray/Red - Gray/Red
Light green - Light green
If there is a malfunction, repair it and connect it
securely.
Decompression solenoid coupler
Main wiring harness ECU coupler
Replace if defective.
Refer to "ELECTRIC STARTING SYSTEM" in
chapter 7.
6 - 28
FI
Reinstatement
method
Perform diagnos-
tic code 54 to
check the opera-
tion of the linear
control valve.
Reinstated by turn-
ing the main switch
ON.
Reinstatement
method
Reinstated by turn-
ing the main switch
ON.