DTC SUMMARY
MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU detects a VB sensor malfunction.
The cause of this malfunction may be one of the following:
DESCRIPTION
The battery voltage sensor sends HV battery voltage information to the hybrid vehicle control ECU via serial communication.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P0B231C | Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range | Battery voltage sensor malfunction: When not boosting, difference between "Hybrid Battery Voltage" and "VL-Voltage before Boosting" is large and difference between "Hybrid Battery Voltage" and "VH-Voltage after Boosting" is large. (1 trip detection logic) | Battery voltage sensor | Comes on | Master Warning Light: Comes on |
DTC No. | Data List |
---|---|
P0B231C |
|
MONITOR DESCRIPTION
The hybrid vehicle control ECU calculates the differences between the received HV battery voltage, boost converter voltage, and inverter voltage. If the differences exceed prescribed values, the hybrid vehicle control ECU determines that there is a malfunction in the battery voltage sensor circuit. If the hybrid vehicle control ECU detects this malfunction, it will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0B23 (INF P0B231C): Hybrid/EV Battery "A" Voltage |
Required sensors/components | Battery voltage sensor |
Frequency of operation | - |
Duration | - |
MIL operation | 1 driving cycle |
Sequence of operation | None |
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not stored | TMC's intellectual property |
Other conditions belong to TMC's intellectual property | - |
TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property | - |
COMPONENT OPERATING RANGE
Hybrid vehicle control ECU | DTC P0B23 (INF P0B231C) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
HINT:
CAUTION / NOTICE / HINT
NOTICE:
Performing the check procedures for a long time with shift lever in N may cause DTC P300000 to be set.
HINT:
Inspection Voltage | Maximum Voltage Difference |
---|---|
Difference between "Hybrid Battery Voltage" and "VL-Voltage before Boosting" | 39 V |
Difference between "Hybrid Battery Voltage" and "VH-Voltage after Boosting" | 60 V |
Difference between "VL-Voltage before Boosting" and "VH-Voltage after Boosting" | 76 V |
PROCEDURE
1. | CHECK DTC OUTPUT (HYBRID CONTROL, MOTOR GENERATOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control and Motor Generator / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes Powertrain > Motor Generator > Trouble Codes Result | Proceed to |
---|---|
P0B231C only is output, or DTCs except the ones in the table below are also output. | A |
DTCs of hybrid control system in the tables below are output. | B |
DTCs of motor generator control system in the tables below are output. | C |
Malfunction Content | System | Relevant DTC | |
---|---|---|---|
Microcomputer malfunction | Hybrid control system | P0A1B49 | Drive Motor "A" Control Module Internal Electronic Failure |
P0AFC00 | Hybrid/EV Battery Sensor Module | ||
P0AFC96 | Hybrid/EV Battery Sensor Module Component Internal Failure | ||
P060647 | Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure | ||
Motor generator control system | P0A1B1F | Generator Control Module Circuit Intermittent | |
P0A1A47 | Generator Control Module Watchdog / Safety μC Failure | ||
P0A1A49 | Generator Control Module Internal Electronic Failure | ||
P1C2A1C | Generator A/D Converter Circuit Circuit Voltage Out of Range | ||
P1C2A49 | Generator A/D Converter Circuit Internal Electronic Failure | ||
P313383 | Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect | ||
P313386 | Communication Error from Generator to Drive Motor "A" Signal Invalid | ||
P313387 | Communication Error from Generator to Drive Motor "A" Missing Message | ||
Power source circuit malfunction | Hybrid control system | P0AFC16 | Hybrid/EV Battery Sensor Module Circuit Voltage Below Threshold |
Motor generator control system | P06D61C | Generator Control Module Offset Power Circuit Voltage Out of Range | |
Communication system malfunction | Hybrid control system | P312387 | Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message |
U029A87 | Lost Communication with Hybrid/EV Battery Sensor Module Missing Message | ||
Sensor and actuator circuit malfunction | Hybrid control system | P0B3B14 | Hybrid/EV Battery Voltage Sensor "A" Circuit Short to Ground or Open |
P0B4014 | Hybrid/EV Battery Voltage Sensor "B" Circuit Short to Ground or Open | ||
P0B4514 | Hybrid/EV Battery Voltage Sensor "C" Circuit Short to Ground or Open | ||
P0B4A14 | Hybrid/EV Battery Voltage Sensor "D" Circuit Short to Ground or Open | ||
P0B4F14 | Hybrid/EV Battery Voltage Sensor "E" Circuit Short to Ground or Open | ||
P0B5414 | Hybrid/EV Battery Voltage Sensor "F" Circuit Short to Ground or Open | ||
P0B5914 | Hybrid/EV Battery Voltage Sensor "G" Circuit Short to Ground or Open | ||
P0B5E14 | Hybrid/EV Battery Voltage Sensor "H" Circuit Short to Ground or Open | ||
P0B6314 | Hybrid/EV Battery Voltage Sensor "I" Circuit Short to Ground or Open | ||
P0B6814 | Hybrid/EV Battery Voltage Sensor "J" Circuit Short to Ground or Open | ||
P0B6D14 | Hybrid/EV Battery Voltage Sensor "K" Circuit Short to Ground or Open | ||
P0B7214 | Hybrid/EV Battery Voltage Sensor "L" Circuit Short to Ground or Open | ||
P308A13 | Hybrid/EV Battery Voltage Sensor All Circuit Open | ||
P0AFC62 | Hybrid/EV Battery Sensor Module Signal Compare Failure | ||
P308A12 | Hybrid/EV Battery Voltage Sensor All Circuit Short to Auxiliary Battery | ||
System malfunction | Motor generator control system | P0D2D16 | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Below Threshold |
P0D2D17 | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold | ||
P0E3116 | DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Below Threshold | ||
P0E3117 | DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Above Threshold |
HINT:
(e) Turn the power switch off.
A | REPLACE BATTERY VOLTAGE SENSOR |
B | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
C | GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM) |