11. EFI SYSTEM OF SQR 472ENGINE
11-55
2.30. Four cylinder injector circuit shorted to ground (fault code P0270)
Serial
number
Operation steps
Test
results
Next step
1
Connect the diagnosis instrument, the
ignition switch is in the "ON"
Next
step
Yes
To step 4
2
Dial the joint stiffness of injector on wire
harness, using a multimeter to check the
connector SM1# pin voltage and power for a
few pieces of value is a 12V.
No Next
step
Yes
Repair or replace the wire harness
3
Check in between a cylinder injector
connector SM# pin and the main relay line is
open circuit or short circuit to ground.
No Next
step
Yes Next
step
4
Using a multimeter to check a resistor
between the fuel injectors for cylinders
SM1# and SM2# pins at 20
℃
in 14.5+/-0.5
ohm
No Replace
injector
Yes Diagnostic
aid
5
Whether the 3.7
Ω
voltage with a multimeter
to check a cylinder injector connector 2# pin
and the negative pole of the power supply
will be.
No Next
step
Repair or replace the wire harness
6
Between the X1_23# pin check cylinder
injector connector 2# pin and the ECU line is
broken or the power supply or short circuit to
ground.
Diagnostic
aid
2.31. Four cylinder injector circuit for the power supply circuit (fault code P0271)
Serial
number
Operation steps
Test
results
Next step
1
Connect the diagnosis instrument, the
ignition switch is in the "ON"
Next
step
Yes
To step 4
2
Dial the joint stiffness of injector on wire
harness, using a multimeter to check the
connector SM1# pin voltage and power for a
few pieces of value is a 12V.
No Next
step
Yes
Repair or replace the wire harness
3
Check in between a cylinder injector
connector SM# pin and the main relay line is
open circuit or short circuit to ground.
No Next
step
Yes Next
step
4
Using a multimeter to check a resistor
between the fuel injectors for cylinders
SM1# and SM2# pins at 20
℃
in 14.5+/-0.5
ohm
No Replace
injector
Yes Diagnostic
aid
5
Whether the 3.7
Ω
voltage with a multimeter
to check a cylinder injector connector 2# pin
and the negative pole of the power supply
will be.
No Next
step
Repair or replace the wire harness
6
Between the X1_23# pin check cylinder
injector connector 2# pin and the ECU line is
broken or the power supply or short circuit to
ground.
Diagnostic
aid
11
Содержание Vyper 4WD 1100cc 4 seater XY1100UEL
Страница 1: ...Service Manual 4 4 GIO MOTORS Vyper 4WD 1100cc Vyper 4WD 1100cc 4 seater ...
Страница 65: ...4 COOLING SYSTEM 4 6 Cooling System Chart 4 ...
Страница 175: ...11 EFI SYSTEM OF SQR 472ENGINE 11 3 3 The ECU control principle diagram ...
Страница 176: ...11 EFI SYSTEM OF SQR 472ENGINE 11 4 4 The ECU function module layout ...
Страница 178: ...11 EFI SYSTEM OF SQR 472ENGINE 11 6 39 The speed signal input Input 80 Empty 40 Empty 81 Empty 41 Empty ...
Страница 258: ...12 LIGHTING AND SWITCHES 12 7 2WD 4WD 4WD Diff Lock Switch No continuity Change the switch ...
Страница 260: ......
Страница 261: ......