Yamaha SR400 2014 Service Manual page 302

Diag-
nostic
code
No.
D63 Malfunction code reinstate-
ment (for fault code No. 24
only)
• No malfunction code
• Malfunction code exists
D70 Control number
Communication error with the FI diagnostic tool
LCD display
Waiting for con-
nection....
ERROR_4
Item
00
24: Fault code number
00–254
Symptom
No signals are received
from the ECU.
Commands from the FI
diagnostic tool are not
accepted by the ECU.
FUEL INJECTION SYSTEM
FI diagnostic tool dis-
play/Actuation
Probable cause of malfunction
• Connecting lead is not connected properly.
• Main switch is in the " " position.
• Malfunction in wire harness ECU coupler.
• Malfunction in FI diagnostic tool coupler.
• Open or short circuit in wire harness.
• Malfunction in FI diagnostic tool.
• Malfunction in ECU
• Vehicle battery is insufficiently charged.
• Malfunction in wire harness ECU coupler.
• Malfunction in FI diagnostic tool coupler.
• Open or short circuit in wire harness.
• Malfunction in FI diagnostic tool.
• Malfunction in ECU
7-45
Procedure
—
To reinstate, set the engine
stop switch to " "  " ".
—