C41" Fuel Pump Relay Circuit Malfunction - HYOSUNG GV250 EI Service Manual

"C41" FUEL PUMP RELAY CIRCUIT MALFUNCTION

C41
DETECTED CONDITION
Voltage is applied continuous for more than 5 sec.,
battery voltage 3.2 V when fuel pump relay is
"OFF" position or battery voltage
pump relay is "ON" position.
▣ ▣ INSPECTION
1) Remove the frame cover.
2) Turn the ignition switch "OFF" position.
3) Check the fuel pump relay coupler for loose or
poor contacts.
If OK, then check the insulation and continuity.
Refer to page 4-2-4 for details.
Is the Fuel pump relay OK?
● GW or BBr wire open or shorted
to ground, or poor
connection of ECU coupler.
● If wire and connection are OK,
intermittent trouble or faulty ECU.
YES
● Recheck each terminal and wire
harness for open circuit and poor
connection.
● Inspect the fuel injectors.
(Refer to page 4-1-39)
Replace the fuel pump relay with a
NO
new one.
CODE
<
1.5 V when fuel
※ : Head lamp relay
: Fuel pump relay
: Main relay
: Turn signal relay
or
L4 E1
[ 4 1 4
POSSIBLE CAUSE
● Fuel pump relay circuit open or short.
● Fuel pump relay malfunction.
● ECU malfunction.
L4
57
EI SYSTEM DIAGNOSIS 4-1-42
CODE
1 4 1 ]
E1
ECU Coupler