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P1168 – Honda DTC

Honda DTC P1168 – Primary HO2S (No. 1) LABEL Low Input

DTC P1168 meaning on Honda

  1. DTC P1168 stands for Primary HO2S (No. 1) LABEL Low Input.
  2. This diagnostic trouble code indicates that the primary heated oxygen sensor (HO2S) in bank 1 is sending a low voltage signal to the engine control module (ECM).

Honda DTC P1168 symptoms

  • Check Engine Light (CEL) illuminated on the dashboard.
  • Decreased fuel efficiency.
  • Possible engine hesitation or misfiring.

Honda DTC P1168 causes

  • Malfunctioning primary HO2S (No. 1).
  • Wiring issues or poor electrical connections related to the primary HO2S.
  • Exhaust system leaks or damage.

Honda DTC P1168 seriousness

  1. While the vehicle may still be operable with DTC P1168, it is important to address this issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

How to diagnose DTC P1168 on Honda

  1. Use an OBD-II scanner to retrieve the specific trouble code and related freeze frame data.
  2. Inspect the primary HO2S (No. 1) and its wiring for any visible damage or corrosion.
  3. Perform a voltage test on the primary HO2S to determine if it is sending a low input signal.

How to fix DTC P1168 on Honda

  1. Replace the primary HO2S (No. 1) if it is found to be faulty.
  2. Repair any damaged wiring or connectors associated with the primary HO2S.
  3. Inspect the exhaust system for leaks or damage and address any issues accordingly.

How to erase DTC P1168 on Honda

  1. After completing the necessary repairs, use an OBD-II scanner to clear the trouble code from the ECM’s memory.
  2. Ensure that the vehicle is in proper operating condition before clearing the DTC.

Recommended tools for Honda diagnostics

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Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

← All Honda Diagnostic Trouble Codes

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