C41" (P0230) Fp Relay Circuit Malfunction; C42" (P01650) Ig Switch Circuit Malfunction - Suzuki VZ800 Service Manual

5-68 FI SYSTEM

"C41" (P0230) FP RELAY CIRCUIT MALFUNCTION

DETECTED CONDITION
No voltage is applied to fuel pump although fuel
pump relay is turned ON, or voltage is applied to fuel
pump, although fuel pump relay is turned OFF.
ECM
VM
FP Relay
INSPECTION
Step 1
1) Remove the secondary gear case cover. (2-16)
2) Turn the ignition switch OFF.
3) Check the FP relay coupler for loose or poor contacts.
If OK, then check the FP relay.
(Refer to page 6-6 for details.)
Is the FP relay OK?
• Yellow or O/W wire open or shorted to ground,
or poor e connection
• Y/R or R/W wire open or poor 0 connection
• If wire and connection are OK, intermittent trou-
YES ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Replace the FP relay with a new one.
4)After repairing the trouble, clear the DTC using SDS tool. (5-25)

"C42" (P01650) IG SWITCH CIRCUIT MALFUNCTION

DETECTED CONDITION
Ignition switch signal is not input in the ECM.
INSPECTION
* Refer to the IGNITION SWITCH INSPECTION for details. (9-36)
Fuel pump
M
Y/R
Y
Fuel pump
relay
POSSIBLE CAUSE
• Fuel pump relay circuit open or short
• Fuel pump relay malfunction
• ECM malfunction
Engine stop
switch
To GP
R/W
switch
Side-stand
O/W
relay
1
1
POSSIBLE CAUSE
• Ignition system circuit open or short
• ECM malfunction
Ignition
switch
ECM coupler (Harness side)