HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A1A-151, P0A1A-155, P0A1A-156, P0A1A-658, P0A1A-659, P0A1A-791
| DTC Code | DTC Name |
|---|---|
| P0A1A-151 | Generator Control Module |
| P0A1A-155 | Generator Control Module |
| P0A1A-156 | Generator Control Module |
| P0A1A-658 | Generator Control Module |
| P0A1A-659 | Generator Control Module |
| P0A1A-791 | Generator Control Module |
DESCRIPTION
The MG ECU located in the inverter with converter assembly monitors its internal operation and it will set DTCs when it detects malfunctions. If any of the following DTCs are output, replace the inverter with converter assembly.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1A | 151 | MG ECU internal malfunction: Run pulse signal cycle deviation or stop (1 trip detection logic) |
Inverter with converter assembly |
| 155 | MG ECU internal malfunction: A/D converter malfunction (1 trip detection logic) |
||
| 156 | MG ECU internal malfunction: CPU ROM-RAM error (1 trip detection logic) |
||
| 658 | MG ECU internal malfunction: Calculation check error (1 trip detection logic) |
||
| 659 | MG ECU internal malfunction: Communication error (from generator (MG1) to motor (MG2)) (1 trip detection logic) |
||
| 791 | MG ECU internal malfunction: R/D converter communication error (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A1A-791 | Generator (MG1) Rev |
| P0A1A-151 P0A1A-155 P0A1A-156 P0A1A-658 P0A1A-659 |
- |
MONITOR DESCRIPTION
The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of those tests, the MG ECU checks the result of the generator CPU self-test. If the MG ECU detects a "Fail" from the generator CPU self-test, it will conclude that there is an internal malfunction in the generator CPU. The power management control ECU will illuminate the MIL and set a DTC.
MONITOR STRATEGY
| Related DTCs | P0A1A (INF 151): RUN pulse malfunction P0A1A (INF 155): A/D malfunction (1 MG CPU) P0A1A (INF 156): RAM and ROM destruction P0A1A (INF 658): MG CPU ALU malfunction P0A1A (INF 659): MG CPU communication malfunction (1 MG CPU to 2 MG CPU) P0A1A (INF 791): R/D converter communication malfunction |
| Required sensors / components | Inverter with converter assembly (MG ECU) |
| 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 present | TMC's intellectual property |
| Other conditions belong to TMC's intellectual property | - |
TYPICAL MALFUNCTION THRESHOLDS
| TMC's intellectual property | - |
COMPONENT OPERATING RANGE
| Power management control ECU | DTC P0A1A (INF 151/155/156/658/659/791) is not detected |
CONFIRMATION DRIVING PATTERN
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Connect the Techstream to the DLC3.
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Turn the power switch on (IG) and turn the Techstream on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the power switch off and wait for 30 seconds or more.
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Turn the power switch on (READY) and after 1 minute or more, turn the power switch off. [A]
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Repeat [A] 3 times. [B]
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Turn the power switch on (IG) and turn the Techstream on.
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Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. [C]
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Read the current DTCs.
Tech Tips
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If a current DTC is output, the system is malfunctioning.
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If current DTCs are not output, check for permanent DTCs.
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Check that the permanent DTCs are cleared.
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If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.
INSPECTION PROCEDURE
Tech Tips
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If DTC P0A1A-151, P0A1A-155, P0A1A-658, P0A1A-659 or P0A1A-791 is output, clear the DTCs, perform the following procedure, and check that the same DTC is not output after the repair.
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Turn the power switch on (IG) and wait for 5 seconds or more.
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If DTC P0A1A-156 is output, clear the DTCs, perform the following procedure, and check that the same DTC is not output after the repair.
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Turn the power switch on (IG) and wait for 1 minute or more.
