Engine-Codes - Mercury - B1342 Mercury

B1342 Mercury Code - ECU Is Defective

- Code Popularity: 8,962 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC B1342 Mercury?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • The B1342 code means that the Electronic Control Unit (ECU) has failed, usually the code is combine with other issues or codes. Repair other problems before replacing the ECU
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC B1342 Mercury?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Search for B1342 Mercury Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1342 Mercury code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the B1342 Mercury Code Mean?

When a repetitive fault causing a circuit overload is detected on certain output circuits, the Smart Junction Box (SJB) disables the circuit by removing voltage, or ground, to the affected circuit. The circuit remains disabled until the fault is corrected and an on-demand self-test is run. When the on-demand self-test has been run after all faults have been corrected, any Diagnostic Trouble Code (DTC) related to the fault are cleared.

B1342 Mercury Code - ECU Is Defective

Need more Information on the Code?

Need more information on how to fix the B1342 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1342 Mercury code diagnosed by a professional: Find a repair shop in your area