System
Hybrid & electric
High-voltage batteries, inverters, charging and hybrid systems on electrified cars.
9 real cases
By car make
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2014 Porsche Cayenne: Intermittent HV Battery Charging Fault
A step-by-step diagnostic guide for a 2014 Porsche Cayenne Hybrid with 16 fault codes and an intermittent high-voltage battery charging failure. -
Diagnosing a Jerking 2022 Volvo XC40 with Multiple Hybrid Codes
A 2022 Volvo XC40 arrived with severe jerking and a mix of hybrid, transmission, and ADAS fault codes. Here is how we isolated the root cause. -
Diagnosing Codes BA252 and BA0251 on a 2022 BMW iX
A Swedish workshop pulled codes BA252 and BA0251 on a 2022 BMW iX. We break down the Gen 5 eDrive faults, from slip ring dust to inverter phase currents. -
Diagnosing P0A7D00 on a 2024 VW Golf VIII Mild-Hybrid
Explore a real diagnostic case of a P0A7D00 code on a 2024 VW Golf VIII mild-hybrid. See how the 48V battery, RSG, and 12V system trigger this no-start fault. -
Diagnosing a P0D9200 Charge Lock Failure on a Jeep Compass
Learn how to diagnose a P0D9200 battery charger coupler lock failure on a Jeep Compass. Step-by-step tests for actuators, wiring shorts, and mechanical binds. -
Tiguan eHybrid High Voltage Shutdown: P0B3700 and P0DAC00
Diagnostic guide for a 2021 Volkswagen Tiguan eHybrid with codes P0B3700, P0DAC00, P0A8D00, and P056200. Learn why 12V faults trigger HV shutdown. -
Diagnosing P00B700 on a 2022 Audi A5 Quattro MHEV
A step-by-step diagnostic breakdown of the P00B700 coolant flow code on a 2022 Audi A5 Quattro, focusing on the rotary slide valve and auxiliary pump. -
Diagnosing Intermittent AC Charging on a 2020 Maxus Deliver 3
A complete diagnostic walkthrough for a 2020 Maxus Deliver 3 with a U011187 fault code and intermittent charging symptoms, starting with the 12-volt system. -
Diagnosing a Catastrophic High Voltage Failure in a 2018 Range Rover Sport
Discover how a blown high voltage fuse and internal short circuit in a 2018 Range Rover Sport masked a catastrophic failure behind low voltage fault codes.