OBD Guide

P183A

Internal Mode Switch 2 D1 Circuit Low Voltage

P183A is an OBD-II diagnostic trouble code meaning: Internal Mode Switch 2 D1 Circuit Low Voltage. Common causes: malfunction of the internal mode switch, open or short circuit in the circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect operation of the gearbox
  • Difficulty shifting gears
  • Check Engine Light Is On
  • Inability to start the engine in certain modes
  • Transition to emergency mode of operation of the transmission

Causes

  • Malfunction of the internal mode switch
  • Open or short circuit in the circuit
  • Poor contact in connectors
  • Transmission control module malfunction
  • Circuit Grounding Problems

How to Fix

  1. Check the integrity of the circuit and connectors
  2. Check the voltage at the mode switch
  3. Replace the faulty mode switch if necessary
  4. Check and, if necessary, replace the transmission control module
  5. Troubleshoot circuit grounding problems

Related codes

FAQ

What does the P183A code mean?

P183A is an OBD-II diagnostic trouble code that indicates: Internal Mode Switch 2 D1 Circuit Low Voltage

What causes a P183A error code?

The most common causes of P183A include: Malfunction of the internal mode switch; Open or short circuit in the circuit; Poor contact in connectors; Transmission control module malfunction.

How do I fix a P183A diagnostic trouble code?

To fix P183A: Check the integrity of the circuit and connectors. Check the voltage at the mode switch. Replace the faulty mode switch if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P183A?

Limited driving only, diagnose soon

How much does it cost to fix P183A?

The estimated repair cost for P183A is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat