OBD Guide
ENFRDEESPT

P181E

Internal Mode Switch 2 R2 Circuit Low Voltage

P181E is an OBD-II diagnostic trouble code meaning: Internal Mode Switch 2 R2 Circuit Low Voltage . Common causes: open or short circuit in switch circuit, malfunction of the internal mode switch. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect gear shifting
  • Check engine light comes on
  • Reduced vehicle performance
  • Switching to emergency mode of the gearbox

Causes

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

How to Fix

  1. Check the continuity of the switch circuit
  2. Check connections and connectors for corrosion
  3. Replace internal mode switch if necessary
  4. Check and, if necessary, replace the transmission control unit

Related codes

P181DP181FP1820

FAQ

What does the P181E code mean?

P181E is an OBD-II diagnostic trouble code that indicates: Internal Mode Switch 2 R2 Circuit Low Voltage

What causes a P181E error code?

The most common causes of P181E include: Open or short circuit in switch circuit; Malfunction of the internal mode switch; Problems with the transmission control unit; Poor connection or corrosion in connectors.

How do I fix a P181E diagnostic trouble code?

To fix P181E: Check the continuity of the switch circuit. Check connections and connectors for corrosion. Replace internal mode switch if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P181E?

Yes, but get it checked soon

How much does it cost to fix P181E?

The estimated repair cost for P181E is $17–56. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat