DTC SUMMARY
MALFUNCTION DESCRIPTION
These DTCs indicate that the boost converter temperature sensor (lower) value is abnormal. The cause of this malfunction may be one of the following:
DESCRIPTION
The motor generator control ECU, which is built into in the inverter with converter assembly, detects the temperature of the boost converter using a temperature sensor built into the boost converter. If necessary, the motor generator control ECU will limit inverter output to help prevent the boost converter from overheating. The motor generator control ECU also detects malfunctions in the sensor based on the temperature sensor values.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P0C3D1C | DC/DC Converter Temperature Sensor "B" Circuit Voltage Out of Range | The actual boost converter temperature (lower) high and the difference between the estimated boost converter temperature (lower) and the actual temperature exceeds a threshold for 10 seconds, or after a long soak, the boost converter temperature (lower) sensor value differs from the values of other sensors. (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
DTC No. | Data List |
---|---|
P0C3D1C |
|
MONITOR DESCRIPTION
If the motor generator control ECU detects a malfunction of the DC/DC Converter Temperature Sensor "B" , it will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0C3E (INF P0C3D1C): DC/DC Converter Temperature Sensor "B" Range / Performance |
Required sensors/components | Inverter, 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
Motor generator control ECU | DTC P0C3E (INF P0C3D1C) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
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NOTICE:
Make sure that the temperature of the inverter coolant do not drop below 15°C (59°F).
HINT:
It is possible to turn the power switch on (READY) without turning it on (IG) first.
HINT:
[*1] to [*6]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
HINT:
WIRING DIAGRAM
Refer to the wiring diagram for the Cooling System.
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CAUTION / NOTICE / HINT
CAUTION:
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HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
*a | Without waiting for 10 minutes |
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.
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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 |
---|---|
P0C3D1C 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 | |
---|---|---|
Insulation Malfunction | P1C7C49 | Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure |
P1C7D49 | Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure | |
P1C7E49 | Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure | |
P1C7F49 | Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure |
Malfunction Content | Relevant DTC | |
---|---|---|
Sensor and actuator circuit malfunction | P0C7396 | Motor Electronics Coolant Pump "A" Component Internal Failure |
P314A31 | Motor Electronics Coolant Pump "A" No Signal | |
System malfunction | P0A9300 | Inverter "A" Cooling System Performance |
HINT:
P0C3D1C may be output as a result of the malfunction indicated by the DTCs above.
(e) Turn the power switch off.
B | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
|
2. | CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) |
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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 |
B | CONNECT SECURELY |
C | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. | CHECK COOLING SYSTEM |
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HINT:
If the "Cooling System" inspection results are normal, perform the next step.
NEXT | REPLACE INVERTER WITH CONVERTER ASSEMBLY |