AutoCodes – Ford – U0202 Ford

U0202 Ford Code - Lost Communication With Passenger Rear Door Module

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Passenger Rear Door Module (PRDM), Passenger Rear Door Module harness is open or shorted, Passenger Rear Door Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U0202 Ford indicates Lost Communication With Passenger Rear Door Module.
Common causes
Common causes include Faulty Passenger Rear Door Module (PRDM), Passenger Rear Door Module harness is open or shorted, Passenger Rear Door Module circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 862
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 03, 2020
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Code U0202 Ford Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Passenger Rear Door Module (PRDM) has not been received.
OBDII Code U0202 Ford - Lost Communication With Passenger Rear Door Module - AutoCodes.com
U0202 Ford Code - Lost Communication With Passenger Rear Door Module

What are the Possible Causes of the DTC U0202 Ford?

  • Faulty Passenger Rear Door Module (PRDM)
  • Passenger Rear Door Module harness is open or shorted
  • Passenger Rear Door Module circuit poor electrical connection

How to Fix the DTC U0202 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0202 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U0202 Ford Code

1. What does the OBDII code U0202 mean on a Ford vehicle?

The U0202 code indicates a loss of communication with the Passenger Rear Door Module (PRDM), which may impact door-related functions like locks, windows, or lighting.

2. What are common symptoms of the U0202 code on a Ford?

Symptoms may include non-functional passenger rear door locks, windows, or lights, and possible warning lights on the dashboard.

3. What causes the U0202 code to appear?

Common causes include wiring issues, a faulty Passenger Rear Door Module, a malfunctioning Body Control Module (BCM), or communication network faults.

4. Can a dead battery cause the U0202 code?

Yes, a dead or weak battery can disrupt communication between modules, potentially triggering the U0202 code.

5. How do I diagnose the U0202 code on my Ford?

Start by inspecting the wiring and connectors to the Passenger Rear Door Module for damage or corrosion, and use an OBDII scanner to verify module communication.

6. Can I still drive my Ford with the U0202 code?

Yes, but certain passenger rear door functions may not work properly, which could be inconvenient or affect vehicle safety.

7. How can I fix the U0202 code?

Repair damaged wiring, replace the Passenger Rear Door Module if faulty, or update/reprogram the Body Control Module if necessary.

8. Does the U0202 code require professional repair?

While some issues like wiring checks can be done at home, diagnosing module failures or network faults may require professional tools and expertise.

9. Will clearing the code fix the U0202 issue?

Clearing the code may temporarily remove it, but if the underlying issue persists, the code will likely reappear.

10. How much does it cost to repair the U0202 code on a Ford?

Costs vary depending on the issue, ranging from $50-$200 for wiring repairs to $400-$800 for module replacement, excluding labor.

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