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Discussion Starter #1
I'm fixing a 2014 Sonata Limited Hybrid with two of these codes
P0A0D -- High Voltage System Interlock Circuit High --> HEV safety plug

P1B25
-- High Voltage Path Fault --> Power relay assembly

P1B76
-- High Voltage Relay Fault --> Power relay assembly

P1B77
-- High Voltage Precharging Fault --> Power relay assembly

I have replaced both the HEV plug and power relay assembly with new Hyundai parts with no good results. Two questions...
1. Could it be the harness the plug goes into?
2. Any other thoughts of what it could be?

Thanks for the input. I'm a newbie here.
 

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Discussion Starter #5
Thanks. I don't believe there is a sensor issue.

I'm going to start a new thread with a description of what's happening.
 
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