OBD Guide
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P183C

Internal Mode Switch 2 D2 Circuit Low Voltage

P183C is an OBD-II diagnostic trouble code meaning: Internal Mode Switch 2 D2 Circuit Low Voltage. Common causes: open or short circuit in switch circuit, poor contact in connectors. Estimated repair cost: $17–56.

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

Symptoms

  • Incorrect display of the current transmission mode
  • Gear shifting problems
  • Check Engine Light Illuminates
  • The gearbox may go into emergency mode

Causes

  • Open or short circuit in switch circuit
  • Poor contact in connectors
  • Malfunction of the internal mode switch
  • Problems with the transmission control unit
  • Contact corrosion

How to Fix

  1. Check the integrity of the mode switch circuit
  2. Inspect and clean connector contacts
  3. Check the voltage at the mode switch
  4. If necessary, replace the internal mode switch
  5. Check the operation of the gearbox control unit

Related codes

P183AP183BP183D

FAQ

What does the P183C code mean?

P183C is an OBD-II diagnostic trouble code that indicates: Internal Mode Switch 2 D2 Circuit Low Voltage

What causes a P183C error code?

The most common causes of P183C include: Open or short circuit in switch circuit; Poor contact in connectors; Malfunction of the internal mode switch; Problems with the transmission control unit.

How do I fix a P183C diagnostic trouble code?

To fix P183C: Check the integrity of the mode switch circuit. Inspect and clean connector contacts. Check the voltage at the mode switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P183C?

Limited driving only, diagnose soon

How much does it cost to fix P183C?

The estimated repair cost for P183C is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat