DTC SUMMARY
MALFUNCTION DESCRIPTION
These DTCs indicate that the resolver output signal is abnormal. The cause of this malfunction may be one of the following:
Area | Main Malfunction Description |
---|---|
Inverter low-voltage circuit | The connectors are not connected properly |
Hybrid vehicle transaxle assembly |
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Wire harness between the resolver and inverter with converter assembly |
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Inside of inverter | Inverter with converter assembly internal circuit malfunction |
DESCRIPTION
Refer to the system description for the Motor Resolver Circuit.
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P0A3F21 | Drive Motor "A" Position Sensor Signal Amplitude < Minimum | Open or short circuit in motor resolver circuit: The motor resolver signal is out of the standard range. (Signal amplitude is small) (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
P0A3F22 | Drive Motor "A" Position Sensor Signal Amplitude > Maximum | Motor resolver signal out of range: The motor resolver signal is out of the standard range. (Signal amplitude is large) (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
MONITOR DESCRIPTION
The motor generator control ECU monitors the motor resolver output signal. If the motor generator control ECU detects output signals that are out of the normal range or specification, it will conclude that there is a malfunction in the motor resolver, illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0A41 (INF P0A3F21): Range check P0A42 (INF P0A3F22): Range check |
Required sensors/components | Motor resolver |
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 P0A41 (INF P0A3F21) is not detected DTC P0A42 (INF P0A3F22) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
[*1] to [*5]: 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 Motor Resolver Circuit.
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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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HINT:
PROCEDURE
1. | CHECK DTC OUTPUT |
(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 |
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P0A3F21 or P0A3F22 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 | |
---|---|---|---|
Insulation Malfunction | Hybrid control system | 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 | System | Relevant DTC | |
---|---|---|---|
Microcomputer malfunction | Motor generator control system | P1C2B1C | Drive Motor "A" Control Module A/D Converter Circuit Voltage Out of Range |
P1C2B49 | Drive Motor "A" Control Module A/D Converter Circuit Internal Electronic Failure | ||
Hybrid control system | P0A1B49 | Drive Motor "A" Control Module Internal Electronic Failure | |
Power source circuit malfunction | Motor generator control system | P06B01C | Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range |
P06D61C | Generator Control Module Offset Power Circuit Voltage Out of Range | ||
Communication malfunction | Motor generator control system | P312487 | Lost Communication between Drive Motor "A" and HV ECU Missing Message |
HINT:
(e) Turn the power switch off.
B | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
C | GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM) |
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2. | CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) |
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Result | Proceed to |
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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 |
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3. | CHECK MOTOR RESOLVER CIRCUIT |
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HINT:
If the "Motor Resolver Circuit" inspection results are normal, perform the next step.
NEXT | REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS |