Ignition Circuit [08/2019 - ]: Procedure
- CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY)
*a Front view of wire harness connector
(to Ignition Coil Assembly)- Disconnect the ignition coil assembly connector.
- Turn the engine switch on (IG).
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition D38-1 (+B) - D38-4 (GND) Engine switch on (IG) 11 to 14 V D39-1 (+B) - D39-4 (GND) Engine switch on (IG) 11 to 14 V D40-1 (+B) - D40-4 (GND) Engine switch on (IG) 11 to 14 V D41-1 (+B) - D41-4 (GND) Engine switch on (IG) 11 to 14 V D42-1 (+B) - D42-4 (GND) Engine switch on (IG) 11 to 14 V D43-1 (+B) - D43-4 (GND) Engine switch on (IG) 11 to 14 V Result
Proceed to OK NG
Result:
NG
See step 3
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)
- Disconnect the ignition coil assembly connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D38-3 (IGT1) - D2-71 (IGT1) Always Below 1 Ω D39-3 (IGT2) - D2-36 (IGT2) Always Below 1 Ω D40-3 (IGT3) - D2-70 (IGT3) Always Below 1 Ω D41-3 (IGT4) - D2-35 (IGT4) Always Below 1 Ω D42-3 (IGT5) - D2-69 (IGT5) Always Below 1 Ω D43-3 (IGT6) - D2-34 (IGT6) Always Below 1 Ω D38-3 (IGT1) or D2-71 (IGT1) - Body ground and other terminals Always 10 kΩ or higher D39-3 (IGT2) or D2-36 (IGT2) - Body ground and other terminals Always 10 kΩ or higher D40-3 (IGT3) or D2-70 (IGT3) - Body ground and other terminals Always 10 kΩ or higher D41-3 (IGT4) or D2-35 (IGT4) - Body ground and other terminals Always 10 kΩ or higher D42-3 (IGT5) or D2-69 (IGT5) - Body ground and other terminals Always 10 kΩ or higher D43-3 (IGT6) or D2-34 (IGT6) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [08/2019 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND)
- Disconnect the ignition coil assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D38-4 (GND) - Body ground Always Below 1 Ω D39-4 (GND) - Body ground Always Below 1 Ω D40-4 (GND) - Body ground Always Below 1 Ω D41-4 (GND) - Body ground Always Below 1 Ω D42-4 (GND) - Body ground Always Below 1 Ω D43-4 (GND) - Body ground Always Below 1 Ω Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 4
- CHECK HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - IGNITION COIL ASSEMBLY)
- Disconnect the semiconductor PWR integration ECU connector.
- Disconnect the ignition coil assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1G-3 - D38-1 (+B) Always Below 1 Ω 1G-3 - D39-1 (+B) Always Below 1 Ω 1G-3 - D40-1 (+B) Always Below 1 Ω 1G-3 - D41-1 (+B) Always Below 1 Ω 1G-3 - D42-1 (+B) Always Below 1 Ω 1G-3 - D43-1 (+B) Always Below 1 Ω 1G-3 or D38-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1G-3 or D39-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1G-3 or D40-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1G-3 or D41-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1G-3 or D42-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1G-3 or D43-1 (+B) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE SEMICONDUCTOR POWER INTEGRATION ECU. Refer to REMOVAL [08/2019 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR