how to fix the speedometer not working on Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

521 words

Problem Statement

Learn how to diagnose and fix a non-functioning speedometer in a 2011-2019 Ford Explorer. Step-by-step guide with tools and diagnostic procedures.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to avoid shock or short circuits.

Symptoms

•Speedometer needle remains at zero
•Check Engine light illuminated
•Erratic speed readings or fluctuating needle
•Absence of other dashboard gauge functionality
•Vehicle speed not displayed on the digital readout

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any relevant trouble codes.
2
Inspect the vehicle speed sensor (VSS) for damage or disconnection.
3
Check the wiring harness and connectors for frays, corrosion, or loose connections.
4
Test the VSS signal output with a multimeter or oscilloscope.
5
Inspect the instrument cluster for any signs of damage or malfunction.
6
Verify the operation of the vehicle's ABS system, as it may affect speedometer performance.

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
•Socket set
•Torque wrench
•Screwdriver set
•Wiring harness repair kit

Parts Required

•Vehicle speed sensor (if faulty)
•Instrument cluster (if damaged)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any relevant trouble codes.
2
Inspect the vehicle speed sensor (VSS) for damage or disconnection.
3
Check the wiring harness and connectors for frays, corrosion, or loose connections.
4
Test the VSS signal output with a multimeter or oscilloscope.
5
Inspect the instrument cluster for any signs of damage or malfunction.
6
Verify the operation of the vehicle's ABS system, as it may affect speedometer performance.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, screwdriver set, wiring harness repair kit (if needed).
Disconnect the negative battery cable to prevent electrical shorts.

2. Inspect and Test the Vehicle Speed Sensor

Locate the VSS, usually mounted on the transmission.
Remove the electrical connector from the VSS.
Using a multimeter, measure the resistance across the sensor terminals. The resistance should be within the manufacturer’s specifications (usually around 400-600 ohms).
If the VSS is faulty, replace it:
- Use a socket set to remove the mounting bolts.
- Install the new VSS and torque the bolts to the manufacturer’s specifications (refer to the repair manual).
- Reconnect the electrical connector.

3. Check Wiring and Connectors

Visually inspect the wiring harness and connectors leading to the VSS.
Look for signs of wear, fraying, or corrosion.
Repair any damaged wiring using a wiring harness repair kit.

4. Inspect the Instrument Cluster

Remove the dashboard trim panel to access the instrument cluster.
Unscrew and detach the instrument cluster from the dashboard.
Inspect for burned-out bulbs or damaged circuit boards.
If the cluster is damaged, replace it with a new or refurbished unit:
- Connect the new instrument cluster and secure it in place.
- Reassemble the dashboard trim panel.

5. Reconnect Battery and Test

Reconnect the negative battery cable.
Start the vehicle and allow it to run. Check if the speedometer is functioning properly.