Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 13 (ENGINE CONTROL SYSTEM (5.6L) (DTC/CIRCUIT DIAGNOSIS) (6 OF 9))
2019 Infiniti Q70 3.7 Luxe, AWD
Section 13 (Engine Control System (5.6L) (DTC/Circuit Diagnosis) (6 Of 9))
2019 Infiniti Q70 3.7 Luxe, AWDSECTION Section 13 (Engine Control System (5.6L) (DTC/Circuit Diagnosis) (6 Of 9))
WARNING: This page is about a different variant/trim than selected.
- DTC Index
- DTC/Circuit Diagnosis
- DTC P1217: Engine Over Temperature
- DTC P1220: Fuel Pump Control Module (FPCM)
- DTC P1225, P1234: TP Sensor
- DTC P1226, P1235: TP Sensor
- DTC P1233, P2101: Electric Throttle Control Function
- DTC P1236, P2118: Throttle Control Motor
- DTC P1238, P2119: Electric Throttle Control Actuator
- DTC P1239, P2135: TP Sensor
- DTC P1423, P1424: Cold Start Control
- DTC P1550: Battery Current Sensor
- DTC P1551, P1552: Battery Current Sensor
- DTC P1553: Battery Current Sensor
- DTC P1554: Battery Current Sensor
- DTC P1556, P1557: Battery Temperature Sensor
- DTC P1564: ASCD Steering Switch
- DTC P1564: ICC Steering Switch
- DTC P1568: ICC Function
- DTC P1572: ASCD Brake Switch
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.