OBD Guide

U046E

Invalid Data Received From Exhaust Gas Sensor Module B

U046E is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Exhaust Gas Sensor Module B. Common causes: exhaust gas sensor b fault, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Reduced engine power
  • Unstable engine idling
  • Increased level of harmful emissions

Causes

  • Exhaust gas sensor B fault
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring Harness Problems
  • Engine control module malfunction

How to Fix

  1. Check the condition of exhaust gas sensor B
  2. Check the integrity of the sensor circuit and connector
  3. Check resistance and sensor signal
  4. Replace sensor if necessary
  5. Reset the error code and check if it returns

Related codes

Error U046E by Vehicle Brand

FAQ

What does the U046E code mean?

U046E is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Exhaust Gas Sensor Module B

What causes a U046E error code?

The most common causes of U046E include: Exhaust gas sensor B fault; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring Harness Problems.

How do I fix a U046E diagnostic trouble code?

To fix U046E: Check the condition of exhaust gas sensor B. Check the integrity of the sensor circuit and connector. Check resistance and sensor signal. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U046E?

Yes, but get it checked soon

How much does it cost to fix U046E?

The estimated repair cost for U046E is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat