OBD Guide

P182B

Internal Mode Switch 'B' Circuit Low Voltage

P182B is an OBD-II diagnostic trouble code meaning: Internal Mode Switch 'B' Circuit Low Voltage. Common causes: open or short circuit in the mode switch circuit, internal mode switch 'b' faulty. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Incorrect display of the current transmission mode on the instrument panel
  • Problems with switching modes (parking, driving, reverse)
  • Check Engine Light Illuminates
  • The transmission can operate in emergency mode
  • There may be problems starting the engine in some modes

Causes

  • Open or short circuit in the mode switch circuit
  • Internal mode switch 'B' faulty
  • Problems with wiring harness or contacts
  • Transmission control module (TCM) malfunction
  • Corrosion or poor contact in connectors

How to Fix

  1. Diagnose the mode switch circuit using a multimeter
  2. Check the condition of the wiring harness and contacts for damage
  3. Check the functionality of the internal mode switch 'B'
  4. If necessary, replace the switch or repair the wiring
  5. Check and, if necessary, replace the transmission control module

Related codes

FAQ

What does the P182B code mean?

P182B is an OBD-II diagnostic trouble code that indicates: Internal Mode Switch 'B' Circuit Low Voltage

What causes a P182B error code?

The most common causes of P182B include: Open or short circuit in the mode switch circuit; Internal mode switch 'B' faulty; Problems with wiring harness or contacts; Transmission control module (TCM) malfunction.

How do I fix a P182B diagnostic trouble code?

To fix P182B: Diagnose the mode switch circuit using a multimeter. Check the condition of the wiring harness and contacts for damage. Check the functionality of the internal mode switch 'B'. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P182B?

Limited driving only, diagnose soon

How much does it cost to fix P182B?

The estimated repair cost for P182B is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat