C41" (P2505) Ecm/Pcm Power Input Signal Malfunction - Suzuki GSX-R1000 2007 Service Manual

4-86 FI SYSTEM DIAGNOSIS

"C41" (P2505) ECM/PCM POWER INPUT SIGNAL MALFUNCTION

DETECTED CONDITION
No voltage is applied to the ECM,
C41
although the ignition switch is turned
(P2505)
ON.
No voltage is applied to the speedome-
ter when turning the ignition switch ON.
ECM
BATT
VM
FP Relay
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.
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.
To Speedometer
R/Bl
Y/R
Y/B
FP relay
• Lead wire/coupler connection of ECM terminal to
fuel fuse
• Fuel fuse
• Power source of speedometer shorted to ground
or open
Engine stop
switch
To side-stand
R/BI
switch
Side-stand
O/W
relay
1
POSSIBLE CAUSE
Ignition
switch