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Home >> Lexus >> 2017 >> NX 300h >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes (2 Of12) >> Hybrid Control System >> DTC P0A1A-200: Generator Control Module; DTC P0A1A-792: Generator Control Module; DTC P0A1A-793: Generator Control Module [10/2014 - 09/2016] >> Description
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DTC P0A1A-200: Generator Control Module; DTC P0A1A-792: Generator Control Module; DTC P0A1A-793: Generator Control Module [10/2014 - 09/2016]: Description

The MG ECU, which is built into the inverter with converter assembly, monitors its internal operation and detects the following malfunctions.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A1A-200 Generator Control Module Generator resolver angle malfunction:
The difference between the resolver angle for control and estimated resolver angle exceeds the allowable limit.
(1 trip detection logic)
  • Inverter with converter assembly
  • Hybrid vehicle transaxle assembly
  • Rear traction motor with transaxle assembly (for AWD)
  • Wire harness or connector
Comes on Master Warning Light:
Comes on
P0A1A-792 Generator Control Module Resolver REF signal cycle malfunction:
Excitation signal (REF signal) for resolver angle detection cycle malfunction.
(1 trip detection logic)
  • Inverter with converter assembly
  • Hybrid vehicle transaxle assembly
  • Rear traction motor with transaxle assembly (for AWD)
  • Wire harness or connector
Comes on Master Warning Light:
Comes on
P0A1A-793 Generator Control Module Resolver REF signal oscillation stop malfunction:
An error is detected when the excitation signal (REF signal) for resolver angle detection is not detected.
(1 trip detection logic)
  • Inverter with converter assembly
  • Hybrid vehicle transaxle assembly
  • Rear traction motor with transaxle assembly (for AWD)
  • Wire harness or connector
Comes on Master Warning Light:
Comes on
RELATED DATA LIST

DTC No. Data List
P0A1A-200 Generator (MG1) Rev
P0A1A-792
P0A1A-793