DTC SUMMARY
MALFUNCTION DESCRIPTION
This DTC indicates that it has been detected that the VH voltage cannot be boosted as commanded due to malfunction of the boost converter system. The cause of this malfunction may be one of the following:
DESCRIPTION
The boost converter boosts the 244.8 V DC from the HV battery to a maximum of approximately 650 V DC. The inverter converts the voltage that has been boosted by the boost converter into alternating current, which is used for driving generator (MG1) and motor (MG2). When a motor or generator operates as a generator, the alternating current that it creates is converted into direct current by the inverter. Then the boost converter drops this voltage to direct current of approximately 244.8 V in order to charge the HV battery.
The MG ECU uses a voltage sensor (VL) that is built into the boost converter to detect the high voltage before it is boosted. It also uses a voltage sensor (VH) that is built into the inverter to detect the high voltage after it is boosted. Based on the voltage before and after it is boosted, the MG ECU controls the operation of the boost converter to boost the voltage to the target voltage.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P0CA3-442 | DC/DC Converter Step Up Voltage Performance | Abnormal voltage execution value: Boosting cannot be performed as requested due to a boost converter system malfunction. (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
HINT:
With the vehicle stopped, apply the parking brake and turn the power switch on (READY).
With the shift lever in P, depress the brake pedal firmly, and quickly and fully depress the accelerator pedal.
Immediately after the accelerator pedal is fully depressed, "VH-Voltage after boosting" will be between 400 and 650 V.
Related Data List DTC No. | Data List |
---|---|
P0CA3-442 | VH-Voltage after Boosting |
MONITOR DESCRIPTION
If the difference between the requested boost converter voltage and the actual boost converter voltage exceeds a predetermined value, the MG ECU determines that there is a malfunction of the execution or monitoring of the boost converter voltage. The MG ECU will send information about the malfunction to the hybrid vehicle control ECU. Upon receiving this information, the hybrid vehicle control ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0CA3 (INF 442): Discrepancy between commanded and actual voltage |
Required sensors/components | Boost converter |
Frequency of operation | Continuous |
Duration | TMC's intellectual property |
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 P0CA3 (INF 442) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
CAUTION / NOTICE / HINT
CAUTION:
Click here
HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
HINT:
After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
PROCEDURE
1. | CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes Result | Proceed to |
---|---|
P0CA3-442 only is output, or DTCs except the ones in the table below are also output. | A |
Any of the following DTCs are also output. | B |
Malfunction Content | Relevant DTC | |
---|---|---|
Microcomputer malfunction | P0A1A-151, 166, 658, 791 | Generator Control Module |
P0A1B-198, 786, 794 | Drive Motor "A" Control Module | |
P0A1D (all INF codes)* | Hybrid Powertrain Control Module | |
P1C2A-155 | Generator A/D Converter Circuit | |
P1C2B-192 | Drive Motor "A" A/D Converter Circuit | |
P1CA6-156 | Generator Control Module Malfunction | |
P1CA7-193 | Drive Motor Control Module Malfunction | |
P1CAC-200 | Generator Position Sensor Angle Malfunction | |
P1CAD-168 | Drive Motor "A" Position Sensor Angle Malfunction | |
P1CAF-792 | Generator Position Sensor REF Signal Cycle Malfunction | |
P1CB0-795 | Drive Motor "A" Position Sensor REF Signal Cycle Malfunction | |
P1CB2-793 | Generator Position Sensor REF Signal Stop Malfunction | |
P1CB3-796 | Drive Motor "A" Position Sensor REF Signal Stop Malfunction | |
P3133-659 | Communication Error from Generator to Drive Motor "A" | |
P3134-661 | Communication Error from Drive Motor "A" to Generator | |
Power source circuit malfunction | P06B0-163 | Sensor Power Supply "A" Circuit / Open |
P06D6-511 | Sensor Reference Voltage "F" Circuit / Open | |
P06E6-164 | Sensor Power Supply "C" Circuit / Open | |
P1C73-512 | Sensor Standard Voltage "F" Circuit / Open | |
Sensor and actuator circuit malfunction | P0A3F-243 | Drive Motor "A" Position Sensor Circuit |
P0A40-500 | Drive Motor "A" Position Sensor Circuit Range / Performance | |
P0A41-245 | Drive Motor "A" Position Sensor Circuit Low | |
P0A45-669 | Drive Motor "B" Position Sensor Circuit | |
P0A46-671 | Drive Motor "B" Position Sensor Circuit Range / Performance | |
P0A47-670 | Drive Motor "B" Position Sensor Circuit Low | |
P0A4B-253 | Generator Position Sensor Circuit | |
P0A4C-513 | Generator Position Sensor Circuit Range / Performance | |
P0A4D-255 | Generator Position Sensor Circuit Low | |
P0BEA-290 | Drive Motor "A" Phase V Current Sensor Circuit Range / Performance | |
P0BEE-298 | Drive Motor "A" Phase W Current Sensor Circuit Range / Performance | |
P0BF6-683 | Drive Motor "B" Phase V Current Sensor Circuit Range / Performance | |
P0BFA-685 | Drive Motor "B" Phase W Current Sensor Circuit Range / Performance | |
P0E05-328 | Generator Phase V Current Sensor Circuit Range / Performance | |
P0E09-336 | Generator Phase W Current Sensor Circuit Range / Performance | |
P1C3C-294 | Drive Motor "A" Phase V Current Sensor Correlation | |
P1C3D-302 | Drive Motor "A" Phase W Current Sensor Correlation | |
P1C3E-333 | Generator Phase V Current Sensor Correlation | |
P1C3F-341 | Generator Phase W Current Sensor Correlation | |
P1C4A-288 | Drive Motor "A" Phase V Current Sensor Sub Circuit Range / Performance | |
P1C4F-296 | Drive Motor "A" Phase W Current Sensor Sub Circuit Range / Performance | |
P1C54-326 | Generator Phase V Current Sensor Sub Circuit Range / Performance | |
P1C59-334 | Generator Phase W Current Sensor Sub Circuit Range / Performance | |
P1C6D-501 | Drive Motor "A" Phase V Current Sensor Offset Range / Performance | |
P1C6E-502 | Drive Motor "A" Phase W Current Sensor Offset Range / Performance | |
P1C6F-688 | Drive Motor "B" Phase V Current Sensor Offset Range / Performance | |
P1C70-689 | Drive Motor "B" Phase W Current Sensor Offset Range / Performance | |
P1C71-515 | Generator Phase V Current Sensor Offset Range / Performance | |
P1C72-516 | Generator Phase W Current Sensor Offset Range / Performance | |
P33C1-684 | Drive Motor "B" Phase V Current Sensor Sub Circuit Range / Performance | |
P33C6-686 | Drive Motor "B" Phase W Current Sensor Sub Circuit Range / Performance | |
P33D8-677 | Drive Motor "B" Phase V Current Sensor Correlation | |
P33D9-678 | Drive Motor "A" Phase W Current Sensor Correlation | |
System malfunction | P0A1A-517, 809 | Generator Control Module |
P0A1B-503, 505, 547, 554, 806 | Drive Motor "A" Control Module | |
P0A1C-693, 812 | Drive Motor "B" Control Module | |
P0A40-504, 506, 549, 556, 808 | Drive Motor "A" Position Sensor Circuit Range / Performance | |
P0A46-695, 814 | Drive Motor "B" Position Sensor Circuit Range / Performance | |
P0A4C-518, 811 | Generator Position Sensor Circuit Range / Performance | |
P0A78-279, 287, 548, 555, 807 | Drive Motor "A" Inverter Performance | |
P0A79-694, 716, 813 | Drive Motor "B" Inverter Performance | |
P0A7A-325, 810 | Generator Inverter Performance | |
P0A90-509 | Drive Motor "A" Performance | |
P0A92-521 | Hybrid Generator Performance | |
P0C76-523 | Hybrid Battery System Discharge Time Too Long | |
P0D2E-586 | Drive Motor "A" Inverter Voltage Sensor Circuit Range / Performance | |
P0D2F-266 | Drive Motor "A" Inverter Voltage Sensor Circuit Low | |
P0D30-267 | Drive Motor "A" Inverter Voltage Sensor Circuit High | |
P0E32-585 | DC/DC Converter Voltage Sensor "A" Range / Performance | |
P0E33-589 | DC/DC Converter Voltage Sensor "A" Low | |
P0E34-590 | DC/DC Converter Voltage Sensor "A" High | |
P1C2D-587 | Hybrid Battery Voltage / DC/DC Converter Voltage Correlation |
HINT:
(e) Turn the power switch off.
B | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
|
2. | CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) |
Click here
Result | Proceed to |
---|---|
OK | A |
NG (The connector is not connected securely.) | B |
NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) | C |
A | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
B | CONNECT SECURELY |
C | REPAIR OR REPLACE HARNESS OR CONNECTOR |