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B1342: ECU Is Defective

Severity
Warning
NHTSA Reports
20
Vehicles Affected
4
System
Powertrain

What Does B1342 Mean?

B1342 is a diagnostic trouble code indicating: ECU Is Defective. This code relates to the body electrical system. It has been reported in NHTSA complaints across 4 different vehicle models.

Symptoms of B1342

Common Causes

B1342 Reports by Year

2015
6
2017
4
2023
3
2021
2
2020
2

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"ABS & TCS WARNING LIGHTS CAME ON, WHEN DIAGNOSED IT READS A CODE B1342 FAULTY ABS CONTROL MODULE. I HAVE TRIED DESPERATELY TO FIND A REPLACEMENT ALL THE DEALERS SEEM TO HAVE THEM ON BACK ORDER WHIT NO SHIP DATE KNOWN. NONE OF THE PARTS HOUSES SELL THIS PARTICULAR MODULE IT IS A 1 YEAR PART ONLY I"

— Ford F-150 owner, 12/11/2017

"I SUBMITTED A COMPLAINT ON FEBRUARY 2, 2015 IN REFERENCE TO THE STEERING COLUMN LOCKING UP WHILE DRIVING MY CAR TO WORK. THE CAR WAS TOWED TO THE REPAIR SHOP AND THE SERVICE TECHNICIAN INFORMED ME THAT THE CODES WERE CLEARED AND THE CAR WAS TESTED AND WAS DRIVABLE. HE ALSO TOLD ME THAT I WOULD HAV"

— Ford Escape owner, 01/27/2015

"The contact owns a 2009 Ford Escape. The contact stated while driving approximately 65 MPH the steering wheel became difficult to turn to the left or the right. The contact stated that the steering wheel had started to jerk to the left. The contact stated no warning light was illuminated. The contac"

— Ford Escape owner, 06/04/2022

Source: NHTSA Complaints Database

Most Reported Vehicles for B1342

Based on NHTSA owner complaint data.

B1342 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

Frequently Asked Questions

Can I drive with this code?
It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.
Will this code clear itself?
Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.
How do I find the exact cause?
A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

Reported Repair Costs for B1342

Based on 11 owner-reported repair costs from NHTSA complaints.

Low End
$140
Typical
$860
High End
$3600

⚠️ These are owner-reported costs, not estimates. Actual costs vary by location, labor rates, and root cause. Source: NHTSA complaints database.

What To Do Next

Possible Fixes

  • 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
  • 🔧 Test the relevant sensor(s) with a multimeter before replacing
  • 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

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