MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU assembly detects a VH sensor malfunction.
The cause of this malfunction may be one of the following:
Voltage sensor malfunction
Motor generator control ECU (MG ECU) malfunction
Communication (wire harness) malfunction
Inverter with converter assembly malfunction
Compressor with motor assembly malfunction
For a description of the inverter.
The signal line from the inverter voltage (VH) sensor is connected to the MG ECU, which is built into the inverter with converter assembly.
The term "drive motor A" indicates the motor (MG2).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | Note |
|---|---|---|---|---|---|---|
| P0D2D1C | Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range | Inverter voltage (VH) sensor performance malfunction:
When not boosting, difference between "VH-Voltage after Boosting" and "VL-Voltage before Boosting" is large and difference between "VH-Voltage after Boosting" and "Hybrid/EV Battery Voltage" is large. (1 trip detection logic) |
·
Inverter with converter assembly ·
Air conditioning system |
Comes on | Master Warning:
Comes on |
SAE Code:
P0D2E |
| DTC No. | Data List |
|---|---|
| P0D2D1C | ·
VL-Voltage before Boosting ·
VH-Voltage after Boosting ·
Hybrid/EV Battery Voltage ·
Boost Ratio ·
SMRG Status ·
SMRP Status ·
SMRB Status ·
Ready Signal |
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.
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Connect the GTS to the DLC3.
Turn the power switch on (IG) and turn the GTS 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 GTS on.
Turn the power switch on (READY). [*1]
With the shift lever in D, depress both the accelerator pedal and brake pedal at the same time to raise the "Hybrid/EV Battery SOC" to a sufficient level. [*2]
Move the shift lever to P, check that the engine is stopped and move the shift lever to N. [*3]
Set the A/C for maximum cooling. [*4]
Leave the vehicle for a few minutes. [*5]
Confirm that the Data List item "Boost Ratio" is 0% when the accelerator pedal is not depressed. Check that the Data List items "VH-Voltage after Boosting" and "Hybrid/EV Battery Voltage" are almost the same.
[*1] to [*5] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
Check the DTC judgment result.
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 the normal judgment procedure again.
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control, Motor Generator, HV Battery / Trouble Codes.
Check for DTCs.
| Result | Proceed to |
|---|---|
| P0D2D1C 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 |
| DTCs of hybrid battery system in the tables below are output | D |
| Malfunction Content | System | Relevant DTC | |
|---|---|---|---|
| Microcomputer malfunction | Hybrid control system | P0A1B49 | Drive Motor "A" Control Module Internal Electronic Failure |
| P060647 | Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure | ||
| P060B49 | Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure | ||
| P060687 | Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message | ||
| P060A47 | Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure | ||
| P060A87 | Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message | ||
| 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 | ||
| Hybrid battery system | P060B49 | Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure | |
| P060687 | Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message | ||
| P060A47 | Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure | ||
| P060A87 | Hybrid/EV Battery Energy Control Module Processor from Monitoring Processor Missing Message | ||
| P060B16 | Hybrid/EV Battery Energy Control Module A/D Processing Circuit Voltage Below Threshold | ||
| P0E2D00 | Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance | ||
| Power source circuit malfunction | 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 |
| U011187 | Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message | ||
| Sensor and actuator circuit malfunction | Hybrid battery system | P301A1C | Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range |
| P1A001C | Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range | ||
| P1AFD1C | Flying Capacitor/Internal Control Module Hybrid/EV Battery Monitor Voltage Out of Range | ||
| 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 | ||
P0D2D1C 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.)
Turn the power switch off.
A
B
C
for 2WD:
for AWD:
D
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Hybrid Control / Utility / Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
Check for Vehicle Control History.
| Result | Proceed to |
|---|---|
| Vehicle Control History Code "X0523" is stored | A |
| Vehicle Control History Code "X0523" is not stored | B |
Turn the power switch off.
A
B
By checking Time Stamp, the time and order in which DTCs were stored in an ECU can be checked.
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Health Check.
Select the systems for which to perform Health Check and check for time stamp data: Store All Data.
Select "Yes" when "Do you want to store time stamp data?" is displayed.
If "Yes" is not selected, time stamp data will not be stored.
After Health Check has completed, select "Time Stamp Data" to display the Time Stamp screen.
Select the "HV" from the drop-down list on the bottom of the Time Stamp screen.
Check the trip count for DTC P0D2D1C.
Check the trip count for Vehicle Control History Code "X0523".
| Result | Proceed to |
|---|---|
| Trip counts for DTC P0D2D1C and Vehicle Control History Code "X0523" are identical. | A |
| Trip counts for DTC P0D2D1C and Vehicle Control History Code "X0523" are not identical. | B |
Turn the power switch off.
A
B
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Read the freeze frame data of DTC P0D2D1C.
| Result | Proceed to |
|---|---|
All of the following conditions are met:
·
"SMRG Status" is OFF at the time DTC confirmed. ·
"SMRP Status" is OFF at the time DTC confirmed. ·
"SMRB Status" is ON at the time DTC confirmed. ·
"Ready Signal" items are all OFF before and after DTC confirmed. |
A |
At least one of the following conditions is not met:
·
"SMRG Status" is OFF at the time DTC confirmed. ·
"SMRP Status" is OFF at the time DTC confirmed. ·
"SMRB Status" is ON at the time DTC confirmed. ·
"Ready Signal" items are all OFF before and after DTC confirmed. |
B |
Turn the power switch off.
A
for A25B-FXS:
for A25D-FXS:
for A25F-FXS:
B
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Air Conditioner / Trouble Codes.
Check for DTCs.
| Result | Proceed to |
|---|---|
| DTC B14721C is not output | A |
| DTC B14721C is output | B |
Turn the power switch off.
A
B
Operate the compressor under the following conditions.
| Item | Item |
|---|---|
| Power switch | On (READY) |
| A/C switch | On |
| Blower speed | HI |
| Temperature setting | MAX COLD |
| Ambient temperature | 25°C (77°F) or higher |
Turn the power switch off.
Check that there is no abnormal noise from the compressor immediately after the power switch is turned off.
| Result | Proceed to |
|---|---|
| No abnormal noise. | A |
| Abnormal noise is heard. | B |
A
for 2WD:
for AWD:
B
for A25B-FXS:
for A25D-FXS:
for A25F-FXS: