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Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/what does code B1342 mean for my Ford Explorer Fifth Generation (2011-2019)?

what does code B1342 mean for my Ford Explorer Fifth Generation (2011-2019)?

Ford Explorer Fifth Generation (2011-2019)

Error Codes
Severity: mediumDifficulty: mediumError Code: B13421-2 hours
3 min read
567 words

Problem Statement

Learn how to diagnose and fix B1342 Battery Junction Box issue in Ford Explorer (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
B1342
Component
Electrical
Repair Time
1-2 hours

Safety Warnings

  • ⚠Always disconnect the battery before working on electrical systems to prevent shocks.
  • ⚠Allow the vehicle to cool before performing any inspections or repairs to avoid burns.

Symptoms

  • •Check engine light illuminated
  • •Inconsistent electrical system performance
  • •Electrical components malfunctioning
  • •Battery draining rapidly
  • •Difficulty starting the vehicle

Diagnostic Steps

  1. 1Scan the vehicle's computer using an OBD-II scanner to confirm the presence of code B1342.
  2. 2Check the battery voltage with a multimeter to ensure it is within the normal range (12.6V to 12.8V for a fully charged battery).
  3. 3Inspect the Battery Junction Box for any signs of corrosion, loose connections, or damaged wiring.
  4. 4Verify the integrity of the battery cables (positive and negative) and ensure they are clean and securely connected.
  5. 5Check the alternator output voltage while the engine is running to ensure it is charging the battery correctly (should be between 13.5V and 14.5V).
  6. 6Inspect fuses related to the Battery Junction Box and replace any that are blown.

Solution

Solution

1. Preparation

  • Gather tools: OBD-II scanner, multimeter, socket set, and wire brush.
  • Ensure the vehicle is parked on a flat surface and the engine is off.
  • Disconnect the negative battery terminal to prevent electrical shock.

2. Inspect the Battery and Connections

  • Remove the battery cover if applicable.
  • Use a wire brush to clean any corrosion from the battery terminals and cable ends.
  • Reconnect the battery terminals securely and ensure there is no play.

3. Check Battery Junction Box

  • Remove the Battery Junction Box cover using a socket set.
  • Inspect for any visible damage or burnt connectors.
  • If corrosion is present, clean the affected areas with electrical cleaner.

4. Test Battery Voltage

  • Reconnect the negative battery terminal.
  • Use a multimeter to check the battery voltage; it should read between 12.6V and 12.8V when the engine is off.
  • Start the vehicle and check the voltage again; it should now read between 13.5V and 14.5V.

5. Check and Replace Fuses

  • Inspect fuses in the Battery Junction Box for any blown fuses.
  • Replace any blown fuses with the specified amperage as indicated in the fuse box diagram.

6. Clear Diagnostic Codes

  • Use an OBD-II scanner to clear the B1342 code from the system.
  • Start the vehicle and monitor for any reoccurrence of the code.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Multimeter
  • Socket set
  • Wire brush
  • Electrical cleaner

Parts Required

  • Replacement fuses (if applicable)
  • Battery (if testing indicates failure)

Additional Information

Error CodeB1342
Component

Electrical

Repair Time

1-2 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

2 items

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