U007D Cadillac Code - Control Module Communication Low Speed Extension CAN Bus Off
Quick Answer
The devices connected to the object high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Check for more codes, Faulty Control Module, Control Module harness is open or shorted. 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
- U007D Cadillac indicates Control Module Communication Low Speed Extension CAN Bus Off.
- Common causes
- Common causes include Check for more codes, Faulty Control Module, Control Module harness is open or shorted.
- 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.
Code U007D Cadillac Description
What are the Possible Causes of the DTC U007D Cadillac?
- Check for more codes
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC U007D Cadillac?
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 U007D Cadillac 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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Frequently Asked Questions about U007D Cadillac Code
1. What does the OBDII code U007D mean on a Cadillac?
The U007D code indicates a communication issue in the low-speed extension CAN (Controller Area Network) bus, specifically that it is "off" or not functioning properly.
2. What are the common symptoms of the U007D code on a Cadillac?
Symptoms may include warning lights on the dashboard, loss of communication with certain control modules, malfunctioning vehicle features, or intermittent electrical issues.
3. What causes the U007D code to appear on a Cadillac?
Common causes include damaged wiring or connectors in the low-speed CAN bus, a faulty control module, poor electrical grounding, or a software glitch.
4. Can I drive my Cadillac with the U007D code active?
It depends on the severity of the issue. If critical systems are affected, driving may be unsafe. It’s best to diagnose and resolve the problem as soon as possible.
5. How do I diagnose the U007D code on a Cadillac?
Use an advanced scan tool to check for related codes, inspect wiring and connectors for damage or corrosion, and test the affected control modules for proper operation.
6. How do I fix the U007D code on a Cadillac?
Repairs can include cleaning or repairing damaged connectors, replacing faulty wiring, updating control module software, or replacing a defective control module.
7. Which control modules are affected by the U007D code?
The specific modules affected depend on the vehicle, but it often involves systems that communicate via the low-speed CAN bus, such as body controls or infotainment.
8. Can a weak battery cause the U007D code on a Cadillac?
Yes, a weak or failing battery can cause communication issues on the CAN bus, leading to the U007D code.
9. Is the U007D code unique to Cadillacs?
No, the U007D code is a generic OBDII code, but its specific implications and affected systems may vary by make and model.
10. How much does it cost to repair the U007D code on a Cadillac?
Repair costs vary depending on the cause, but they can range from $100 for minor wiring repairs to over $1,000 if a control module needs replacement.
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