how to deal with Ford Explorer Fifth Generation (2011-2019) ignition problems

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

631 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix ignition problems in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems
•Allow the vehicle to cool before working on the engine

Symptoms

•Check engine light illuminated
•Engine cranks but does not start
•No response when turning the key in the ignition
•Electrical accessories function but engine fails to engage
•Intermittent starting issues
•Key fob not recognized by the ignition system

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored diagnostic trouble codes (DTCs)
2
Inspect the battery for voltage and connections; ensure the battery is fully charged and terminals are clean and tight
3
Check the ignition switch for proper operation and continuity using a multimeter
4
Test the starter motor to determine if it is functioning correctly
5
Verify the functionality of the key fob; check for battery condition and reprogram if necessary
6
Examine the wiring and connectors from the ignition switch to the starter for any signs of damage or corrosion

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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
•Wrench set
•Screwdriver set
•Socket set
•Torque wrench

Parts Required

•Battery (if needed)
•Ignition switch (if faulty)
•Starter motor (if faulty)
•Key fob battery (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored diagnostic trouble codes (DTCs)
2
Inspect the battery for voltage and connections; ensure the battery is fully charged and terminals are clean and tight
3
Check the ignition switch for proper operation and continuity using a multimeter
4
Test the starter motor to determine if it is functioning correctly
5
Verify the functionality of the key fob; check for battery condition and reprogram if necessary
6
Examine the wiring and connectors from the ignition switch to the starter for any signs of damage or corrosion

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Faulty Components

A. Battery Replacement (if necessary)

Tools Required: Wrench set, battery terminal cleaner
Sub-steps:
1. Remove the negative terminal first, followed by the positive terminal.
2. Remove the battery hold-down bracket and lift the battery out.
3. Place the new battery in the tray and secure it with the hold-down bracket.
4. Connect the positive terminal first, followed by the negative terminal.

B. Ignition Switch Replacement (if necessary)

Tools Required: Screwdriver set, socket set
Sub-steps:
1. Remove the steering column covers by unscrewing and unclipping them.
2. Disconnect any electrical connectors attached to the ignition switch.
3. Unscrew the ignition switch and remove it from the column.
4. Install the new ignition switch and reconnect all electrical connectors.
5. Reassemble the steering column covers.

C. Starter Motor Replacement (if necessary)

Tools Required: Socket set, torque wrench
Sub-steps:
1. Disconnect the battery negative terminal.
2. Remove any covers blocking access to the starter motor.
3. Disconnect the wiring harness from the starter motor.
4. Unbolt the starter motor from the engine block.
5. Install the new starter motor by reversing the removal steps and torque bolts to manufacturer specifications.

3. Key Fob Reprogramming (if necessary)

Tools Required: None
Sub-steps:
1. Insert the key into the ignition and turn it to the "On" position without starting the engine.
2. Press the "Lock" button on the key fob for approximately 2-3 seconds.
3. Turn the ignition off and remove the key. Test the key fob to ensure it is functioning properly.