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P1843 Code - 1-2 Shift Solenoid Circuit High Input Voltage

- Code Popularity: 18,626 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1843?

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 1-2 Shift Solenoid
  • 1-2 Shift Solenoid harness is open or shorted
  • 1-2 Shift Solenoid circuit poor electrical connection
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How to Fix the DTC P1843?

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 P1843 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 P1843 Description

With the engine runtime over 5 seconds, system voltage from 8-18v, Fuel Cutoff inactive, 1-2 Shift Solenoid commanded on by the Powertrain Control Module (PCM), the PCM detects a continuous short to power on the 1-2 Shift Solenoid feedback circuit for 4.3 seconds.

OBDII Code P1843 - 1-2 Shift Solenoid Circuit High Input Voltage - AutoCodes.com
P1843 Code - 1-2 Shift Solenoid Circuit High Input Voltage

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Code P1843 comments

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