HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A1A-166
| DTC Code | DTC Name |
|---|---|
| P0A1A-166 | 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 | 166 | MG ECU internal malfunction: R/D converter NM stop error (1 trip detection logic) |
Inverter with converter assembly |
MONITOR DESCRIPTION
The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In this diagnostic monitor, the MG ECU checks for an R/D (Resolver/Digital Converter) malfunction involving the generator resolver. If MG ECU detects an R/D error, it will conclude that there is an internal malfunction involving the generator resolver. The power management control ECU will illuminate the MIL and set a DTC.
MONITOR STRATEGY
| Related DTCs | P0A1A (INF 166): R/D converter NM signal stop abnormality |
| 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 166) 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).
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With the vehicle stopped with the shift lever in P, depress the accelerator pedal and start the engine. [A]
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Depress the accelerator pedal and keep the engine running for 30 seconds or more. [B]
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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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After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
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Turn the power switch on (READY).
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With the vehicle stopped and the shift lever in P, depress the accelerator pedal and start the engine.
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Depress the accelerator pedal and keep the engine running for 30 seconds or more.
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If DTCs are still output after replacing components of the inverter with converter assembly, replace the inverter with converter assembly.
