U059C - Communication Issue in 2016-2020 Ford Explorer and Other Models

Quick Answer

U059C means: U059C indicates a communication failure between control modules.

Fix: Check and replace faulty components Cost: $100 - $300 Time: 90-180 minutes

Can I drive with U059C? Immediate action is recommended to prevent further issues.

Common Questions

What does U059C mean and how does it affect my car?

The U059C code signifies a communication failure between different control modules in your vehicle. This can lead to performance issues like erratic engine behavior, warning lights, and even stalling. It's essential to address this promptly to ensure your vehicle runs smoothly.

What are the most common causes of U059C and how much does it cost to fix?

Common causes include faulty wiring (40%), corroded connectors (30%), and malfunctioning control modules (20%). Repair costs can range from $100 for wiring repairs to over $1200 for control module replacements.

Can I drive my car with U059C or should I stop immediately?

While it may be possible to drive with the U059C code, it is not advisable. Doing so can lead to further complications and safety hazards. It’s best to have your vehicle diagnosed and repaired as soon as possible.

How can I diagnose U059C myself using GeekOBD APP?

Using the GeekOBD APP, you can perform an OBD2 scan to retrieve the U059C code along with other related codes. Look for freeze frame data that shows when the code was triggered, which can provide context. After diagnosing, check wiring and connectors visually.

What vehicles are most commonly affected by U059C?

The U059C code is frequently found in vehicles like the 2016-2020 Ford Explorer, along with certain models from Chevrolet and GMC. Check for any recalls or technical service bulletins (TSBs) that may address this issue.

How can I prevent U059C from happening again?

Regular maintenance, including checking electrical connections and wiring for wear, can help prevent U059C. Additionally, ensure your vehicle's software is updated as per manufacturer recommendations.

What is U059C?

The U059C diagnostic trouble code indicates a communication issue between control modules in your vehicle, specifically related to the powertrain control module and other modules like the transmission control module or body control module. When this code is triggered, it means that one or more modules are unable to send or receive messages properly. This can lead to various operational issues, as the modules rely on accurate data to function correctly. For instance, in models like the 2016-2020 Ford Explorer, this communication breakdown can manifest as erratic engine performance, unexpected warning lights, or even stalling. The problem can stem from faulty wiring, corroded connectors, or a malfunctioning control module. As the vehicle owner, it's crucial to address this code promptly, as it can lead to more severe issues down the line, including significant engine performance problems or safety risks while driving. Ignoring the U059C code can result in a cascading failure of systems that rely on inter-module communication, adversely affecting your vehicle's reliability and safety.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U059C is present:

  • Check engine light stays on constantly, often accompanied by other warning indicators.
  • Engine hesitates during acceleration, which can lead to frustrating driving experiences.
  • Fuel economy decreased by 10-15%, indicating inefficiencies in engine operation.
  • Transmission may shift erratically or fail to respond as expected, leading to poor performance.
  • Intermittent loss of power or stalling while driving, posing safety risks.

Possible Causes

Most common causes of U059C (ordered by frequency):

  1. Faulty wiring is the most common cause, with a likelihood of 40%. This can result from wear and tear or environmental factors.
  2. Corroded connectors account for about 30% of cases, often exacerbated by moisture or road salt exposure.
  3. A malfunctioning control module can be responsible for 20% of U059C occurrences, typically due to manufacturing defects or electrical failures.
  4. Less common but serious causes include software glitches in the vehicle's onboard computer, which can cause widespread system issues.
  5. Rarely, issues with the vehicle’s battery or alternator can lead to U059C, affecting the power supply to control modules.

U059C Repair Costs

Cost Breakdown by Repair Type

Wiring Repair

Repairing or replacing damaged wiring and connectors.

  • Total: $100 - $300
  • Success rate: 85%
Control Module Replacement

Replacing a faulty control module that’s causing communication issues.

  • Total: $400 - $1200
  • Success rate: 90%
Software Update

Performing a software update on the vehicle's control systems.

  • Total: $50 - $150
  • Success rate: 70%
Money-Saving Tips for U059C
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional U059C Diagnosis Process

Follow these systematic steps to accurately diagnose U059C. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes (10-15 minutes)

Step 4: System function test - Verify proper operation after repairs and clear codes (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test verification - Drive vehicle under various conditions to confirm repair success (15-20 minutes)

Step 5: Road test verification - Drive vehicle under various conditions to confirm repair success (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: U059C Diagnosis and Repair on 2017 Ford Explorer

Vehicle: 2017 Ford Explorer, 75,000 miles

Problem: Customer reported engine hesitation and check engine light.

Diagnosis: Diagnostic scan revealed U059C along with other codes. Visual inspection showed corroded connectors.

Solution: Replaced corroded connectors and performed a software update.

Cost: $350 (including parts and labor)

Result: Customer reported improved engine performance and no further issues.

Case Study 2: Resolving U059C in 2018 Chevrolet Equinox

Vehicle: 2018 Chevrolet Equinox, 40,000 miles

Problem: Check engine light illuminated, with erratic engine performance.

Diagnosis: Found U059C indicating communication failure; wiring harness showed signs of wear.

Solution: Replaced the wiring harness and cleared the codes.

Cost: $450 (parts and labor involved)

Result: Vehicle ran smoothly post-repair, and no further codes appeared.

Diagnose U059C

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: U059C
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes