Ignition Circuit [09/2019 - ]: 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) - C1-4 (GND) Engine switch on (IG) 11 to 14 V C6-1 (+B) - C6-4 (GND) Engine switch on (IG) 11 to 14 V C7-1 (+B) - C7-4 (GND) Engine switch on (IG) 11 to 14 V C9-1 (+B) - C9-4 (GND) Engine switch on (IG) 11 to 14 V C12-1 (+B) - C12-4 (GND) Engine switch on (IG) 11 to 14 V C13-1 (+B) - C13-4 (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 connectors.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C1-3 (IGT1) - C96-71 (IGT1) Always Below 1 Ω C6-3 (IGT2) - C96-36 (IGT2) Always Below 1 Ω C7-3 (IGT3) - C96-70 (IGT3) Always Below 1 Ω C9-3 (IGT4) - C96-35 (IGT4) Always Below 1 Ω C12-3 (IGT5) - C96-69 (IGT5) Always Below 1 Ω C13-3 (IGT6) - C96-34 (IGT6) Always Below 1 Ω C1-3 (IGT1) or C96-71 (IGT1) - Body ground and other terminals Always 10 kΩ or higher C6-3 (IGT2) or C96-36 (IGT2) - Body ground and other terminals Always 10 kΩ or higher C7-3 (IGT3) or C96-70 (IGT3) - Body ground and other terminals Always 10 kΩ or higher C9-3 (IGT4) or C96-35 (IGT4) - Body ground and other terminals Always 10 kΩ or higher C12-3 (IGT5) or C96-69 (IGT5) - Body ground and other terminals Always 10 kΩ or higher C13-3 (IGT6) or C96-34 (IGT6) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [06/2017 - 10/2020] , or refer to REMOVAL [10/2020 - 08/2022] , or refer to REMOVAL [08/2022 - ]
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 C1-4 (GND) - Body ground Always Below 1 Ω C6-4 (GND) - Body ground Always Below 1 Ω C7-4 (GND) - Body ground Always Below 1 Ω C9-4 (GND) - Body ground Always Below 1 Ω C12-4 (GND) - Body ground Always Below 1 Ω C13-4 (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 (IG2 RELAY - IGNITION COIL ASSEMBLY)
- Disconnect the IG2 relay from No. 1 engine room relay block.
- 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 3 (IG2 NO. 1 relay) - C1-1 (+B) Always Below 1 Ω 3 (IG2 NO. 1 relay) - C6-1 (+B) Always Below 1 Ω 3 (IG2 NO. 1 relay) - C7-1 (+B) Always Below 1 Ω 3 (IG2 NO. 1 relay) - C9-1 (+B) Always Below 1 Ω 3 (IG2 NO. 1 relay) - C12-1 (+B) Always Below 1 Ω 3 (IG2 NO. 1 relay) - C13-1 (+B) Always Below 1 Ω 3 (IG2 NO. 1 relay) or C1-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 3 (IG2 NO. 1 relay) or C6-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 3 (IG2 NO. 1 relay) or C7-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 3 (IG2 NO. 1 relay) or C9-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 3 (IG2 NO. 1 relay) or C12-1 (+B) - Body ground and other terminals Always 10 kΩ or higher 3 (IG2 NO. 1 relay) or C13-1 (+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 [06/2017 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR