DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT FUEL INJECTOR ASSEMBLY (POWER SOURCE)
INSPECT FUEL INJECTOR ASSEMBLY
CHECK HARNESS AND CONNECTOR (FUEL INJECTOR - ECM)
INSPECT NO. 1 INTEGRATION RELAY (IG2)
SFI SYSTEM - Fuel Injector Circuit
DESCRIPTION
The fuel injectors are located on the intake manifold. They inject fuel into the cylinders based on the signals from the ECM.
WIRING DIAGRAM
Refer to DTC P0300 ().
INSPECTION PROCEDURE
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
| 1.INSPECT FUEL INJECTOR ASSEMBLY (POWER SOURCE) |
Disconnect the fuel injector connector.
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Cylinder | Tester Connection | Switch Condition | Specified Condition |
| No. 1 | a5-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
| No. 2 | a1-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
| No. 3 | a6-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
| No. 4 | a2-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
| No. 5 | a7-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
| No. 6 | a3-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
| No. 7 | a8-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
| No. 8 | a4-2 - Body ground | Engine switch on (IG) | 11 to 14 V |
Text in Illustration| *a | Front view of wire harness connector
(to Fuel Injector Assembly) |
| 2.INSPECT FUEL INJECTOR ASSEMBLY |
Inspect the fuel injector assembly ().
| | REPLACE FUEL INJECTOR ASSEMBLY ()
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| 3.CHECK HARNESS AND CONNECTOR (FUEL INJECTOR - ECM) |
Disconnect the fuel injector connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
for RHD| Cylinder | Tester Connection | Condition | Specified Condition |
| No. 1 | a5-1 - Body ground | Always | 10 kΩ or higher |
| a5-1 - C46-86 (#10) | Always | Below 1 Ω |
| No. 2 | a1-1 - Body ground | Always | 10 kΩ or higher |
| a1-1 - C46-109 (#20) | Always | Below 1 Ω |
| No. 3 | a6-1 - Body ground | Always | 10 kΩ or higher |
| a6-1 - C46-85 (#30) | Always | Below 1 Ω |
| No. 4 | a2-1 - Body ground | Always | 10 kΩ or higher |
| a2-1 - C46-108 (#40) | Always | Below 1 Ω |
| No. 5 | a7-1 - Body ground | Always | 10 kΩ or higher |
| a7-1 - C46-84 (#50) | Always | Below 1 Ω |
| No. 6 | a3-1 - Body ground | Always | 10 kΩ or higher |
| a3-1 - C46-107 (#60) | Always | Below 1 Ω |
| No. 7 | a8-1 - Body ground | Always | 10 kΩ or higher |
| a8-1 - C46-83 (#70) | Always | Below 1 Ω |
| No. 8 | a4-1 - Body ground | Always | 10 kΩ or higher |
| a4-1 - C46-106 (#80) | Always | Below 1 Ω |
for RHD| Cylinder | Tester Connection | Condition | Specified Condition |
| No. 1 | a5-1 - Body ground | Always | 10 kΩ or higher |
| a5-1 - C45-86 (#10) | Always | Below 1 Ω |
| No. 2 | a1-1 - Body ground | Always | 10 kΩ or higher |
| a1-1 - C45-109 (#20) | Always | Below 1 Ω |
| No. 3 | a6-1 - Body ground | Always | 10 kΩ or higher |
| a6-1 - C45-85 (#30) | Always | Below 1 Ω |
| No. 4 | a2-1 - Body ground | Always | 10 kΩ or higher |
| a2-1 - C45-108 (#40) | Always | Below 1 Ω |
| No. 5 | a7-1 - Body ground | Always | 10 kΩ or higher |
| a7-1 - C45-84 (#50) | Always | Below 1 Ω |
| No. 6 | a3-1 - Body ground | Always | 10 kΩ or higher |
| a3-1 - C45-107 (#60) | Always | Below 1 Ω |
| No. 7 | a8-1 - Body ground | Always | 10 kΩ or higher |
| a8-1 - C45-83 (#70) | Always | Below 1 Ω |
| No. 8 | a4-1 - Body ground | Always | 10 kΩ or higher |
| a4-1 - C45-106 (#80) | Always | Below 1 Ω |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 4.INSPECT NO. 1 INTEGRATION RELAY (IG2) |
Inspect the No. 1 integration relay (IG2) ().
| | REPLACE NO. 1 INTEGRATION RELAY |
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| OK | |
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| REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - FUEL INJECTOR) |
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