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AutoCodes - Generic - P1618

P1618 Code - Sensor Reference Voltage 1 Erratic

- Code Popularity: 39,642 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1618?

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 5-Volt Sensor
  • 5-Volt Sensor harness is open or shorted
  • 5-Volt Sensor circuit poor electrical connection
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How to Fix the DTC P1618?

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 P1618 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 P1618 Description

With the ignition ON, the Diagnostic Trouble Code (DTC) will be set when the Powertrain Control Module (PCM) detects that the 5-Volt supply circuit voltage is below the minimum acceptable value.

OBDII Code P1618 - Sensor Reference Voltage 1 Erratic - AutoCodes.com
P1618 Code - Sensor Reference Voltage 1 Erratic

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Information for Specific Makes

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Code P1618 comments

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