Suzuki GSX-R1000 2007, Service Manual

Page: 241 / 549

4-86 FI SYSTEM DIAGNOSIS
“C41” (P2505) ECM/PCM POWER INPUT SIGNAL MALFUNCTION
INSPECTION
Step 1 (When indicating C41:)
1) Turn the ignition switch OFF.
2) Remove the front seat. (
8-8)
3) Check the ECM couplers for loose or poor contacts.
If OK, then measure the ECM input voltage.
DETECTED CONDITION POSSIBLE CAUSE
C41
(P2505)
No voltage is applied to the ECM,
although the ignition switch is turned
ON.
No voltage is applied to the speedome-
ter when turning the ignition switch ON.
• Lead wire/coupler connection of ECM terminal to
fuel fuse
• Fuel fuse
• Power source of speedometer shorted to ground
or open
ECM
Side-stand
relay
Engine stop
switch
FP relay
Ignition
switch
Y/R
VM
BATT
FP Relay
R/BI
O/W
Y/B
To side-stand
switch
R/Bl
To Speedometer
When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with
a needle pointed tester probe to prevent the terminal damage or terminal bend.
1