Hybrid Battery Error Codes

P0A0D | P0A0F | P0A10 | P0A11 | P0A12 | P0A13 | P0A1D | P0A1F | P0A7F | P0A80 | P0A93 | P0A94 (Hyundai Hybrid Error Codes / Kia Hybrid Error Codes)

• P0A0D - High Voltage System Interlock Circuit High
• P0A0F - Engine Failed to start
• P0A10 - DC/DC Converter Status Circuit High Input
• P0A11 - DC/DC Converter Enable Circuit/Open
• P0A12 - DC/DC Converter Enable Circuit Low
• P0A13 - DC/DC Converter Enable Circuit High
• P0A1D - Hybrid Powertrain Control Module
• P0A1F - Battery Energy Control Module
• P0A7D - Hybrid Battery Pack State of Charge Low
• P0A7E - Hybrid Battery Pack Over Temperature
• P0A7F - Hybrid Battery Pack Deterioration
• P0A80 - Replace Hybrid Battery Pack
• P0A93 - Inverter “A” Cooling System Performance Inverter water pump
• P0A94 - DC/DC Converter Performance
• P0AA6 - High Voltage Battery Voltage System Isolation Fault
• P0AA7 - Hybrid Battery Voltage Isolation Sensor Circuit

P0A0F | P0A7F | P0A80 | P0A81 | P0A93 | P3030 | P0AA6 (Honda Hybrid Error Codes)

• P0A0F - Hybrid battery control module or faulty hybrid battery
• P0A7F - Hybrid Battery Pack Deterioration. High resistance in one or more battery modules
• P0A80 - Hybrid Battery Pack is failing – Needs Replacement
• P0A81 through P0A85 - Battery Cooling Fan Low motor voltage or increased battery temperature
• P0A93 - Check HV coolant level, hoses, water pump, and cooling fan motor
• P3030 - Damaged high-voltage wiring
• P0AA6 - Problem with the battery voltage isolation system

P0A7F | P0B22 | P0B24 | P0B26 | P0B28 | P0B30 | P3010 | P3030 | P0A81 | P0A93 (Ford Hybrid Error Codes)

• P0A7F - Hybrid Battery Pack Deterioration (indicates high resistance in a battery module)
• P0B22 - Hybrid Battery Pack Voltage Sense "D" Circuit Intermittent/Erratic
• P0B24 - Hybrid Battery "A" Voltage Unstable
• P0B26 - Hybrid Battery "A" Voltage High
• P0B28 - Hybrid Battery "B" Voltage Unstable
• P0B30 - Hybrid Battery "D" Voltage Unstable
• P3010 through P3024 - Battery Block Becomes Weak (indicates unbalanced voltages between battery blocks)
• P3030 - High Voltage Line Snapped
• P0A81 through P0A85 - Battery Cooling Fan (low motor voltage or increased battery temperature)
• P0A93 - Inverter Cooling System (check HV coolant level, water pump, and cooling fan motor)

P0A80 | P3011 | P0AA6 | P0A7F | P0A81 | P0A93 | P3030 | C1241 (General Motors Hybrid Codes)

• P0A80 - Replace hybrid battery pack
• P3011 through P3024 - Unbalanced battery blocks – Hybrid Battery issue
• P0AA6 - High-voltage system isolation fault (Voltage leak to ground)
• P0A7F - Battery pack deterioration (Replace Hybrid Battery)
• P0A81 - P0A85 - These codes relate to the battery cooling fan, indicating issues like low motor voltage or high battery temperature.
• P0A93 - This code indicates an issue with the inverter cooling system, potentially involving coolant levels, hoses, water pump, or the cooling fan motor
• P3030 - This code indicates a loss of communication between the battery ECU and one or more battery blocks.
• C1241 - This code suggests a problem with the 12V battery.

P0A80 | P0AA6 | P3011 | P0A93 | P0A94 | C1259 | C1251 | C1217 | C1218 | C1219 (Lexus Hybrid Battery Error Codes )

• P0A80 – Hybrid Battery Pack is failing – Needs Replacement 
• P0AA6 - High-voltage system isolation fault (Voltage leak to ground).
• P3011 through P3024 - battery block voltage imbalances 
• P0A93 - Inverter cooling system performance issues, often related to the inverter water pump. 
• P0A94 - DC/DC converter performance issues (Internal to the Inverter located under the hood) 
• C1259 - Malfunction in regenerative of HV ECU (Will cause premature HB failure) 
• C1251 - Malfunction in hydraulic brake booster pump motor (Will cause premature HB failure) 
• C1217 - Malfunction in regenerative solenoid (SMC1) circuit
• C1218 - Malfunction in regenerative solenoid (SMC2) circuit 
• C1219 - Malfunction in regenerative solenoid (SS) circuit

Toyota (C1241 Code)

Possible Symptoms of C1241 Code:  
‍Engine Light ON (or Warning Light to Service Engine Soon)  
ABS Warning Light On

Possible Causes:  
Low Battery Charge  
Faulty Battery  
Faulty Charging System  
Power Source Circuit

P3011-P3027 (2007 - 2015 Toyota Prius)

Possible Causes of P3001-P3027 Codes:  
‍Faulty HV Battery assembly  
P3011- battery block 1 becomes weak  
P3012- battery block 2 becomes weak  
P3013- battery block 3 becomes weak  
P3014- battery block 4 becomes weak  
P3015- battery block 5 becomes weak  
P3016- battery block 6 becomes weak  
P3017- battery block 7 becomes weak  
P3018- battery block 8 becomes weak  
P3019- battery block 9 becomes weak  
P3020- battery block 10 becomes weak  
P3021- battery block 11 becomes weak  
P3022- battery block 12 becomes weak  
P3023- battery block 13 becomes weak  
P3024- battery block 14 becomes weak

P3000 Code (Toyota)

Possible symptoms of the P3000 code may include:  
Engine light and triangle light on

Common causes may include:  
HV Control system  
Low fuel supply  
HV Battery assembly

Description:  
Based on the malfunction signal obtained from the battery Electronic Control Unit (ECU), the system alerts the driver.

The DTC is output when the state of charge (SOC) of the HV battery decreases as a result of running out of gas, leaving the car in the N position, or a malfunction in the HV Control System.

P0A80 Code (Toyota)

Symptoms of the POA80 code may include:  
‍Decreased fuel efficiency. Diminished overall power and performance. Other HV Battery related codes.

Common causes may include:  
Defective HV Battery, module, or battery pack Individual module resistance is excessive Module voltage out of balance HV Battery pack fans/computer failure Corroded, broken or loose busbar connectors/wiring.