Fuel Injector Circuit [10/2013 - ]: Procedure
- CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE)
- Disconnect the fuel injector assembly connectors.
- Turn the power switch on (IG).
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition D14-1 - Body ground Power switch on (IG) 11 to 14 V D15-1 - Body ground Power switch on (IG) 11 to 14 V D16-1 - Body ground Power switch on (IG) 11 to 14 V D17-1 - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Fuel Injector Assembly)
NG → See step 4
OK: Go to next step
- Disconnect the fuel injector assembly connectors.
- INSPECT FUEL INJECTOR ASSEMBLY
- Inspect the fuel injector assembly. Refer to INSPECTION [10/2013 - ]
.
HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly. Refer to INITIALIZATION [10/2013 - ] .
NG → See step 5
OK: Go to next step
- Inspect the fuel injector assembly. Refer to INSPECTION [10/2013 - ]
.
- CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM)
- Disconnect the fuel injector assembly connectors.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open)
Tester Connection Condition Specified Condition D14-2 - D28-85 (#10) Always Below 1 Ω D15-2 - D28-84 (#20) Always Below 1 Ω D16-2 - D28-83 (#30) Always Below 1 Ω D17-2 - D28-82 (#40) Always Below 1 Ω Standard Resistance (Check for Short)
Tester Connection Condition Specified Condition D14-2 or D28-85 (#10) - Body ground Always 10 Ω or higher D15-2 or D28-84 (#20) - Body ground Always 10 Ω or higher D16-2 or D28-83 (#30) - Body ground Always 10 Ω or higher D17-2 or D28-82 (#40) - Body ground Always 10 Ω or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 6
- CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - FUEL INJECTOR ASSEMBLY)
- Disconnect the fuel injector assembly connectors.
- Remove the integration relay from the engine room relay block.
- Disconnect the integration relay connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open)
Tester Connection Condition Specified Condition D14-1 - 1A-4 Always Below 1 Ω D15-1 - 1A-4 Always Below 1 Ω D16-1 - 1A-4 Always Below 1 Ω D17-1 - 1A-4 Always Below 1 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 7
- REPLACE FUEL INJECTOR ASSEMBLY. Refer to REMOVAL [10/2013 - ]
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [10/2013 - ]
- CHECK ECM POWER SOURCE CIRCUIT. Refer to ECM Power Source Circuit [10/2013 - ]