AutoCodes – BMW – P1402 BMW

P1402 BMW Code - Heated Catalyst Power Switch Overtemperature Condition Bank 1

Quick Answer

P1402 BMW indicates Heated Catalyst Power Switch Overtemperature Condition Bank 1. Common causes for P1402 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: P1402 BMW indicates Heated Catalyst Power Switch Overtemperature Condition Bank 1.
Common causes: Common causes for P1402 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 4,611

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
How To Fix
Cost to Diagnose
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Code P1402 BMW Description

OBDII Code P1402 BMW - Heated Catalyst Power Switch Overtemperature Condition Bank 1 - AutoCodes.com — P1402 BMW Code - Heated Catalyst Power Switch Overtemperature Condition Bank 1

How to Fix the DTC P1402 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 P1402 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.