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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))DTC/CIRCUIT DIAGNOSISDTC P1233, P2101: ELECTRIC THROTTLE CONTROL FUNCTIONDTC LOGICDTC DETECTION LOGIC
2019 Infiniti Q70 3.7 Luxe, AWD

DTC Detection Logic

2019 Infiniti Q70 3.7 Luxe, AWDSECTION DTC Detection Logic
WARNING: This page is about a different variant/trim than selected.
NOTE: If DTC P1233 or P2101 is displayed with DTC P1238, P2119, perform the trouble diagnosis for DTC P1238, P2119. Refer to DTC Logic .

If DTC P1233 or P2101 is displayed with DTC P2100, perform the trouble diagnosis for DTC P1290, P2100. Refer to DTC Logic .

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1233

ETC FNCTN/CIRC-B2

[Electric throttle control performance (bank 2)]

Electric throttle control function does not operate properly.
  • Harness or connectors

    (Throttle control motor circuit is open or shorted)

  • Electric throttle control actuator

P2101

ETC FNCTN/CIRC-B1

[Electric throttle control performance (bank 1)]
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.