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 DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION (DTC/CIRCUIT DIAGNOSIS)
2019 Infiniti Q70 3.7 Luxe, AWD
Automatic Transmission (DTC/Circuit Diagnosis)
2019 Infiniti Q70 3.7 Luxe, AWDSECTION Automatic Transmission (DTC/Circuit Diagnosis)
- DTC Index
- DTC/Circuit Diagnosis
- DTC U0100: Lost Communication (ECM A)
- DTC U0300: Can Communication Data
- DTC U1000: Can Comm Circuit
- DTC P0615: Starter Relay
- DTC P0705: Transmission Range Sensor A
- DTC P0710: Transmission Fluid Temperature Sensor A
- DTC P0717: Input Speed Sensor A
- DTC P0720: Output Speed Sensor
- DTC P0725: Engine Speed
- DTC P0729: 6GR Incorrect Ratio
- DTC P0730: Incorrect Gear Ratio
- DTC P0731: 1GR Incorrect Ratio
- DTC P0732: 2GR Incorrect Ratio
- DTC P0733: 3GR Incorrect Ratio
- DTC P0734: 4GR Incorrect Ratio
- DTC P0735: 5GR Incorrect Ratio
- DTC P0740: Torque Converter
- DTC P0744: Torque Converter
- DTC P0745: Pressure Control Solenoid A
- DTC P0750: Shift Solenoid A
- DTC P0775: Pressure Control Solenoid B
- DTC P0780: Shift
- DTC P0795: Pressure Control Solenoid C
- DTC P1705: TP Sensor
- DTC P1721: Vehicle Speed Signal
- DTC P1730: Interlock
- DTC P1734: 7GR Incorrect Ratio
- DTC P1815: M-Mode Switch
- DTC P2713: Pressure Control Solenoid D
- DTC P2722: Pressure Control Solenoid E
- DTC P2731: Pressure Control Solenoid F
- DTC P2807: Pressure Control Solenoid G
- Main Power Supply And Ground Circuit
- Shift Position Indicator Circuit
- Shift Lock System
RENDER: 1.0x
NO RELATED
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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.