Lost Communication With EV Power Distribution Module
The U0222 code means the vehicle's onboard diagnostic system has detected: Lost Communication With EV Power Distribution Module. This is a critical severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- hard
- Estimated cost
- $800 - $4,000 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Vehicle will not power on
- No response from any EV system
- High-voltage system offline
- All dashboard warning lights on
- Cannot charge or drive
Probable Causes (Ranked by Likelihood)
- Failed power distribution module Very High
- Main high-voltage fuse blown High
- CAN bus total communication failure Moderate
- Severe water damage to power module Low
Step-by-Step Diagnostic Procedure
-
Check main high-voltage fuse
-
Inspect power distribution module connections
-
Test CAN bus for total communication loss
-
Look for water intrusion in power module area
Frequently Asked Questions
Can I drive with U0222?
No. The power distribution module routes power to all EV systems.
What causes U0222?
Typically a failed module or blown high-voltage fuse.
How much does U0222 cost to fix?
Between $800 and $4,000. The root cause must also be addressed.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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