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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 (3 Of 12) >> Hybrid Control System >> DTC P0A1D-721: Hybrid Powertrain Control Module; DTC P0A1D-722: Hybrid Powertrain Control Module; DTC P0A1D-723: Hybrid Powertrain Control Module; DTC P0A1D-787: Hybrid Powertrain Control Module; DTC P0A1D-818: Hybrid Powertrain Control Module [10/2014 - ] >> Description
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DTC P0A1D-721: Hybrid Powertrain Control Module; DTC P0A1D-722: Hybrid Powertrain Control Module; DTC P0A1D-723: Hybrid Powertrain Control Module; DTC P0A1D-787: Hybrid Powertrain Control Module; DTC P0A1D-818: Hybrid Powertrain Control Module [10/2014 - ]: Description

The hybrid vehicle control ECU monitors its internal operation, it will store a DTC and perform fail-safe control if it detects the following malfunction. If the following DTC is output, replace the hybrid vehicle control ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A1D-721 Hybrid Powertrain Control Module ECU internal malfunction
(1 trip detection logic)
Hybrid vehicle control ECU Comes on Master Warning Light:
Comes on
P0A1D-722 Hybrid Powertrain Control Module ECU internal malfunction
(1 trip detection logic)
Hybrid vehicle control ECU Comes on Master Warning Light:
Comes on
P0A1D-723 Hybrid Powertrain Control Module ECU internal malfunction
(1 trip detection logic)
Hybrid vehicle control ECU Comes on Master Warning Light:
Comes on
P0A1D-787 Hybrid Powertrain Control Module ECU internal malfunction
(1 trip detection logic)
Hybrid vehicle control ECU Comes on Master Warning Light:
Comes on
P0A1D-818 Hybrid Powertrain Control Module ECU internal malfunction
(1 trip detection logic)
Hybrid vehicle control ECU Comes on Master Warning Light:
Comes on