AutoCodes – BMW – P1404 BMW

P1404 BMW Code - Heated Catalyst Current too High During Heating Bank 2

Quick Answer

P1404 BMW indicates Heated Catalyst Current too High During Heating Bank 2. Common causes for P1404 BMW include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1404 BMW indicates Heated Catalyst Current too High During Heating Bank 2.
Common causes: Common causes for P1404 BMW include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 5,043

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 19, 2019

Description
Step-by-Step Diagnostic Guide
How To Fix
Cost to Diagnose
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Code P1404 BMW Description

OBDII Code P1404 BMW - Heated Catalyst Current too High During Heating Bank 2 - AutoCodes.com — P1404 BMW Code - Heated Catalyst Current too High During Heating Bank 2

How to Fix the DTC P1404 BMW?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1404 BMW code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.