- Hybrid Battery Voltage
- VL-Voltage before Boosting
- VH-Voltage after Boosting
- Boost Ratio
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EKJH |
| Model Year Start: 2019 | Model: RAV4 HV | Prod Date Range: [11/2018 - 08/2020] |
| Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): P0B231C; Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range; 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020] | ||
|
DTC |
P0B231C |
Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range |
DTC SUMMARY
MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU assembly detects a VB sensor malfunction.
The cause of this malfunction may be one of the following:
Battery voltage sensor VB sensor internal circuit malfunction
- Battery voltage sensor malfunction
- Communication (wire harness) malfunction
High voltage system malfunction
- HV battery malfunction
DESCRIPTION
The battery voltage sensor sends HV battery voltage information to the hybrid vehicle control ECU assembly 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: Comes on |
Related Data List
|
DTC No. |
Data List |
|---|---|
|
P0B231C |
|
CONFIRMATION DRIVING PATTERN
HINT:
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
![2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): UTILITY](/t3Portal/stylegraphics/info.gif)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (IG) and turn the Techstream on.
- Turn the power switch on (READY).
- With the shift lever in D, depress both the accelerator pedal and brake pedal at the same time to raise the "Hybrid Battery SOC" to a sufficient level.
- Move the shift lever to P, check that the engine is stopped and move the shift lever to N.
- Set the A/C for maximum cooling.
-
Leave the vehicle for a few minutes.
HINT:
After the repair if "VL-Voltage before Boosting" and the "Hybrid Battery Voltage" are approximately the same when the power switch is turned on (READY) with shift lever in P and the accelerator pedal not depressed, the condition is judged as normal.
- Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
-
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform driving pattern again.
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:
-
If the battery voltage sensor has been replaced, it is necessary to confirm the voltage of each battery block. With power switch on (READY), shift lever in P, the engine stopped and the HV battery voltage at 224 V or more, check the value of Data List items "Hybrid Battery Voltage", "VL-Voltage before Boosting" and "VH-Voltage after Boosting". When the system is normal, the values of "Hybrid Battery Voltage", "VL-Voltage before Boosting", and "VH-Voltage after Boosting" should be almost equal. If the difference between each value is more than the voltages specified below, the system is malfunctioning.
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 MC 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:
-
P0B231C may be output as a result of the malfunction indicated by the DTCs above.
- The chart above is listed in inspection order of priority.
- Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
(e) Turn the power switch off.
| A |
|
REPLACE BATTERY VOLTAGE SENSOR
|
| B |
|
GO TO DTC CHART (HYBRID CONTROL SYSTEM)
|
| C |
|
|
|