LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2024 >> TX 350 Base, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> DTC Index (2 Of 2) >> Power Distribution DTCS >> Sub Battery System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Sub Battery System

SUB BATTERY SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [09/2023 - 12/2023]

DTC Code Description
B1032-11 Sub Battery Control Module Internal Temperature Sensor "A" Circuit Short to Ground
B1032-15 Sub Battery Control Module Internal Temperature Sensor "A" Circuit Short to Battery or Open
B2290-7E Sub Battery System Output Power Relay "C" Actuator Stuck On
B2290-7F Sub Battery System Output Power Relay "C" Actuator Stuck Off
B2291-7E Sub Battery System Output Power Relay "D" Actuator Stuck On
B2291-7F Sub Battery System Output Power Relay "D" Actuator Stuck Off
B2293-7E Sub Battery System Output Power Relay "F" Actuator Stuck On
B2293-7F Sub Battery System Output Power Relay "F" Actuator Stuck Off
B2296-19 Sub Battery System Output Power "C" Circuit Current Above Threshold
B2297-19 Sub Battery System Output Power "D" Circuit Current Above Threshold
B2299-19 Sub Battery System Output Power "F" Circuit Current Above Threshold
B22A3-11 Sub Battery Control Module Wake Up Circuit Short to Ground
B22AF-00 Internal DC/DC Converter System Performance
B22B0-17 Internal DC/DC Converter (Circuit 1) Circuit Voltage Above Threshold
B22B1-17 Internal DC/DC Converter (Circuit 2) Circuit Voltage Above Threshold
B22B4-19 Internal DC/DC Converter Input Current Circuit Current Above Threshold
B22B5-19 Internal DC/DC Converter Current Circuit Current Above Threshold
B22B9-11 Sub Battery Control Module Reset Prevention Circuit Circuit Short to Ground
B22B9-15 Sub Battery Control Module Reset Prevention Circuit Circuit Short to Battery or Open
B22C1-49 Sub Battery Control Module Auxiliary Charging Internal Electronic Failure
B22C5-7E Sub Battery System Output Power Relay "B" Actuator Stuck On
B22C5-7F Sub Battery System Output Power Relay "B" Actuator Stuck Off
B22C6-7E Sub Battery System Input Power Relay "A" Actuator Stuck On
B22C6-7F Sub Battery System Input Power Relay "A" Actuator Stuck Off
B22CA-7E Sub Battery System Output Power Relay "A" Actuator Stuck On
B22CA-7F Sub Battery System Output Power Relay "A" Actuator Stuck Off
B22CB-19 Sub Battery System Output Power "A" Circuit Current Above Threshold
B22CF-19 Gear Shift Control Actuator Power Supply Circuit Current Above Threshold
B22D5-62 Sub Battery Control Module System Voltage Sensor Signal Compare Failure
B22D6-1C Sub Battery Control Module Overcurrent/Overvoltage Detection Circuit Voltage Out of Range
B22E0-00 Deterioration of Sub Battery
B22E4-17 Sub Battery Circuit Voltage Above Threshold
B22E6-19 Sub Battery Circuit Current Above Threshold
B22EF-7E Sub Battery System Input Power Relay "B" Actuator Stuck On
B2301-87 Lost Communication with Gear Shift Control Module "A" (Line) Missing Message
B2305-62 Internal Control Module Sub Battery Monitor Voltage Signal Compare Failure
P1770-62 Door Lock Switch / Curtesy Switch Signal Compare Failure
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message
SUB BATTERY SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [12/2023 - ]

DTC Code Description
B1032-11 Sub Battery Control Module Internal Temperature Sensor "A" Circuit Short to Ground
B1032-15 Sub Battery Control Module Internal Temperature Sensor "A" Circuit Short to Battery or Open
B2290-7E Sub Battery System Output Power Relay "C" Actuator Stuck On
B2290-7F Sub Battery System Output Power Relay "C" Actuator Stuck Off
B2291-7E Sub Battery System Output Power Relay "D" Actuator Stuck On
B2291-7F Sub Battery System Output Power Relay "D" Actuator Stuck Off
B2293-7E Sub Battery System Output Power Relay "F" Actuator Stuck On
B2293-7F Sub Battery System Output Power Relay "F" Actuator Stuck Off
B2296-19 Sub Battery System Output Power "C" Circuit Current Above Threshold
B2297-19 Sub Battery System Output Power "D" Circuit Current Above Threshold
B2299-19 Sub Battery System Output Power "F" Circuit Current Above Threshold
B22A3-11 Sub Battery Control Module Wake Up Circuit Short to Ground
B22AF-00 Internal DC/DC Converter System Performance
B22B0-17 Internal DC/DC Converter (Circuit 1) Circuit Voltage Above Threshold
B22B1-17 Internal DC/DC Converter (Circuit 2) Circuit Voltage Above Threshold
B22B4-19 Internal DC/DC Converter Input Current Circuit Current Above Threshold
B22B5-19 Internal DC/DC Converter Current Circuit Current Above Threshold
B22B9-11 Sub Battery Control Module Reset Prevention Circuit Circuit Short to Ground
B22B9-15 Sub Battery Control Module Reset Prevention Circuit Circuit Short to Battery or Open
B22C1-49 Sub Battery Control Module Auxiliary Charging Internal Electronic Failure
B22C5-7E Sub Battery System Output Power Relay "B" Actuator Stuck On
B22C5-7F Sub Battery System Output Power Relay "B" Actuator Stuck Off
B22C6-7E Sub Battery System Input Power Relay "A" Actuator Stuck On
B22C6-7F Sub Battery System Input Power Relay "A" Actuator Stuck Off
B22CA-7E Sub Battery System Output Power Relay "A" Actuator Stuck On
B22CA-7F Sub Battery System Output Power Relay "A" Actuator Stuck Off
B22CB-19 Sub Battery System Output Power "A" Circuit Current Above Threshold
B22CF-19 Gear Shift Control Actuator Power Supply Circuit Current Above Threshold
B22D5-62 Sub Battery Control Module System Voltage Sensor Signal Compare Failure
B22D6-1C Sub Battery Control Module Overcurrent/Overvoltage Detection Circuit Voltage Out of Range
B22E0-00 Deterioration of Sub Battery
B22E4-17 Sub Battery Circuit Voltage Above Threshold
B22E6-19 Sub Battery Circuit Current Above Threshold
B22EF-7E Sub Battery System Input Power Relay "B" Actuator Stuck On
B2301-87 Lost Communication with Gear Shift Control Module "A" (Line) Missing Message
B2305-62 Internal Control Module Sub Battery Monitor Voltage Signal Compare Failure
P1770-62 Door Lock Switch / Curtesy Switch Signal Compare Failure
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message