OBD Guide
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P184B

Internal Mode Switch 2 S Circuit High Voltage

P184B is an OBD-II diagnostic trouble code meaning: Internal Mode Switch 2 S Circuit High Voltage. Common causes: short circuit to power, malfunction of the internal mode switch. Estimated repair cost: $17–89.

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

Symptoms

  • Incorrect gear shifting
  • Transmission transition to emergency mode
  • Check Engine Light Illuminates
  • Loss of power or jerking when shifting
  • Unexpected shift to neutral

Causes

  • Short circuit to power
  • Malfunction of the internal mode switch
  • Wiring harness damage
  • Problems with the transmission control module
  • Corrosion of contacts or connectors

How to Fix

  1. Check the integrity of the wiring harness
  2. Check voltage in switch circuit
  3. Test the operation of the internal mode switch
  4. Check contacts and connectors for corrosion
  5. If necessary, replace the switch or repair the wiring

Related codes

P184AP184CP184D

FAQ

What does the P184B code mean?

P184B is an OBD-II diagnostic trouble code that indicates: Internal Mode Switch 2 S Circuit High Voltage

What causes a P184B error code?

The most common causes of P184B include: Short circuit to power; Malfunction of the internal mode switch; Wiring harness damage; Problems with the transmission control module.

How do I fix a P184B diagnostic trouble code?

To fix P184B: Check the integrity of the wiring harness. Check voltage in switch circuit. Test the operation of the internal mode switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P184B?

Limited driving only, diagnose soon

How much does it cost to fix P184B?

The estimated repair cost for P184B is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat