Ignition Circuit [06/2018 - 01/2019]: Procedure
WARNING: This page is about a different variant/trim than selected.
- 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 connectors.
- 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 C1-1 (+B) - C1-3 (GND) Engine switch on (IG) 11 to 14 V C3-1 (+B) - C3-3 (GND) Engine switch on (IG) 11 to 14 V C5-1 (+B) - C5-3 (GND) Engine switch on (IG) 11 to 14 V C7-1 (+B) - C7-3 (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 connectors.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C1-2 (IGT1) - C76-49 (IGT1) Always Below 1 Ω C3-2 (IGT2) - C76-48 (IGT2) Always Below 1 Ω C5-2 (IGT3) - C76-47 (IGT3) Always Below 1 Ω C7-2 (IGT4) - C76-46 (IGT4) Always Below 1 Ω C1-2 (IGT1) or C76-49 (IGT1) - Body ground and other terminals Always 10 kΩ or higher C3-2 (IGT2) or C76-48 (IGT2) - Body ground and other terminals Always 10 kΩ or higher C5-2 (IGT3) or C76-47 (IGT3) - Body ground and other terminals Always 10 kΩ or higher C7-2 (IGT4) or C76-46 (IGT4) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM
Refer to REMOVAL [06/2018 - 01/2019]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND)
- Disconnect the ignition coil assembly connectors.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C1-3 (GND) - Body ground Always Below 1 Ω C3-3 (GND) - Body ground Always Below 1 Ω C5-3 (GND) - Body ground Always Below 1 Ω C7-3 (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 (NO. 1 INTEGRATION RELAY - IGNITION COIL ASSEMBLY)
- Disconnect the No. 1 integration relay connector.
- Disconnect the ignition coil assembly connectors.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1A-9 - C1-1 (+B) Always Below 1 Ω 1A-9 - C3-1 (+B) Always Below 1 Ω 1A-9 - C5-1 (+B) Always Below 1 Ω 1A-9 - C7-1 (+B) Always Below 1 Ω 1A-9 or C1-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1A-9 or C3-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1A-9 or C5-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 1A-9 or C7-1 (+B) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
GO TO ECM POWER SOURCE CIRCUIT
Refer to ECM Power Source Circuit [06/2018 - 01/2019]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR