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P0118 Honda Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage

- Code Popularity: 107,918 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0118 Honda?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Engine Coolant Temperature (ECT) Sensor 1
  • Engine Coolant Temperature Sensor 1 harness is open or shorted
  • Engine Coolant Temperature Sensor 1 circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC P0118 Honda?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0118 Honda code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0118 Honda Description

The Engine Coolant Temperature (ECT) Sensor 1 is used for air/fuel ratio feedback control, ignition timing control, idle speed control, and other functions. ECT Sensor 1 resistance varies depending on the engine coolant temperature. As the engine coolant cools, ECT Sensor 1 resistance increases, and the Powertrain Control Module (PCM) detects a high signal voltage. As the engine coolant warms, ECT Sensor 1 resistance decreases, and the PCM detects a low signal voltage. If the ECT Sensor 1 output voltage is a set value, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).
OBDII Code P0118 Honda - Engine Coolant Temperature Sensor 1 Circuit High Voltage - AutoCodes.com
P0118 Honda Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage

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Code P0118 Honda comments

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