Electrical System

Browse all OBD2 fault codes in this category.

← All Fault Codes Search Codes

Home › Fault Codes › Electrical System

Need a Professional OBD2 Scanner?

To diagnose the real cause behind any OBD2 fault code, you need a scanner that can read live data, freeze‑frame information and manufacturer‑specific codes.

Compare All Recommended Scanners →

Electrical System

P0304 – Cylinder 4 Misfire Detected

P0550 – Power Steering Pressure Sensor Circuit

P0552 – Power Steering Pressure Sensor Low Input

P0560 – System Voltage Malfunction

P0561 – System Voltage Unstable

P0563 – System Voltage High

P0600 – Serial Communication Link Malfunction

P0601 – Internal Control Module Memory Check Sum Error

P0602 – Control Module Programming Error

P0603 – Internal Control Module Keep Alive Memory Error

P0604 – Internal Control Module RAM Error

P0605 – Internal Control Module ROM Error

P0607 – Control Module Performance

P0608 – Control Module VSS Output

P0609 – Control Module VSS Input

P0610 – Control Module Vehicle Options Error

P0617 – Starter Relay Circuit High

P0621 – Generator Lamp Control Circuit

P0625 – Generator Field Control Low

P0630 – VIN Not Programmed or Mismatched

P0633 – Immobilizer Key Not Programmed

P0634 – PCM Temperature Sensor Circuit

P1605 – Rough Idle / Forced Idle (Nissan)

P1726 – Engine Speed Signal (Nissan)

P1793 – Engine Speed Signal (Nissan)

P2500 – Generator Lamp/L Terminal Circuit Low

P2501 – Generator Lamp/L Terminal Circuit High

P2505 – ECM/PCM Power Input Signal

P2506 – ECM/PCM Power Input Range/Performance

P2507 – ECM/PCM Power Input Low

P2508 – ECM/PCM Power Input High

P2509 – ECM/PCM Power Input Intermittent

P2509 – ECM/PCM Power Input Signal Intermittent

P2602 – Coolant Pump Control Circuit Low

P2603 – Coolant Pump Control Circuit High

P2604 – Coolant Pump Control Circuit Intermittent

P2605 – Coolant Pump Control Circuit Open

P2606 – Coolant Pump Control Circuit Short

P2610 – ECM/PCM Internal Engine Off Timer Performance

P2611 – Crankshaft Position Signal Output Circuit

P2612 – Crankshaft Position Signal Output Circuit Low

P2613 – Crankshaft Position Signal Output Circuit High

P2614 – Camshaft Position Signal Output Circuit

P2615 – Camshaft Position Signal Output Circuit Low

P2616 – Camshaft Position Signal Output Circuit High

P2617 – Crankshaft Position Signal Output Circuit Intermittent

P2618 – Camshaft Position Signal Output Circuit Intermittent

P2621 – Injector Control Circuit Low

P2622 – Injector Control Circuit High

P2623 – Injector Control Circuit Intermittent

P2628 – O2 Sensor Pumping Current Trim Circuit Open

P2629 – O2 Sensor Pumping Current Trim Circuit Short

P2630 – Fuel Pump Control Circuit Range/Performance

P2631 – Fuel Pump Control Circuit Low

P2632 – Fuel Pump Control Circuit High

P2633 – Fuel Pump Control Circuit Intermittent

P2634 – Fuel Pump Control Circuit Open

P2635 – Fuel Pump Control Circuit Short

P2641 – A Rocker Arm Actuator Control Circuit Low

P2642 – A Rocker Arm Actuator Control Circuit High

P2643 – A Rocker Arm Actuator Control Circuit Intermittent

P2644 – A Rocker Arm Actuator Control Circuit Open

P2646 – A Rocker Arm Actuator Control Circuit Low (Bank 1)

P2647 – A Rocker Arm Actuator Control Circuit High (Bank 1)

P2649 – A Rocker Arm Actuator Control Circuit Intermittent (Bank 1)

P3000 – HV Battery Control System Malfunction

P3001 – HV Battery ECU Communication Error

P3002 – HV Battery Isolation Fault

P3003 – HV Battery Current Sensor Fault

P3004 – HV Battery Voltage Sensor Fault

P3005 – HV Battery Temperature Sensor Fault

P3006 – HV Battery Cell Imbalance

P3007 – HV Battery Module Deterioration

P3008 – HV Battery Weak Cell Detected

P3009 – HV Battery Leak Detected

P3100 – Hybrid System Malfunction

P3120 – Hybrid Inverter Malfunction

P3140 – Hybrid Inverter Cooling System Fault

P3400 – Cylinder Deactivation System