DTC    P0A1B-192    Drive Motor "A" Control Module

DTC    P0A1B-193    Drive Motor "A" Control Module

DTC    P0A1B-196    Drive Motor "A" Control Module

DTC    P0A1B-198    Drive Motor "A" Control Module

DTC    P0A1B-661    Drive Motor "A" Control Module

DTC    P0A1B-662    Drive Motor "A" Control Module

DTC    P0A1B-781    Drive Motor "A" Control Module

DTC    P0A1B-786    Drive Motor "A" Control Module

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DESCRIPTION

The MG ECU monitors internal operations and detects a malfunction.

DTC No.
INF Code
DTC Detection Condition
Trouble Area
P0A1B
192
A/D error
w/ converter inverter assembly (MG ECU)
↑
193
ROM-RAM error
w/ converter inverter assembly (MG ECU)
↑
196
Run pulse error
w/ converter inverter assembly (MG ECU)
↑
198
R/D converter communication error
w/ converter inverter assembly (MG ECU)
↑
661
2MG→1MG communication error
w/ converter inverter assembly (MG ECU)
↑
662
2MG→3MG communication error
w/ converter inverter assembly (MG ECU)
↑
781
Primary check error
w/ converter inverter assembly (MG ECU)
↑
786
ALU error
w/ converter inverter assembly (MG ECU)

MONITOR DESCRIPTION

The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of those diagnostics, the MG ECU checks the result of the motor CPU self-test. If the MG ECU detects a "Fail" from the motor CPU self-test, it will conclude that there is an internal malfunction in the motor CPU. The HV control ECU will illuminate the MIL and set a DTC.

INSPECTION PROCEDURE

1.REPLACE W/ CONVERTER INVERTER ASSEMBLY

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