P0A1B-163
Diagnostic trouble codes
DESCRIPTION
The MG ECU monitors internal operations and detects a malfunction.| DTC No. |
INF Code |
DTC Detection Condition |
Trouble Area |
| P0A1B |
163 |
Power source [24 V] error |
w/ converter inverter assembly (MG ECU) |
| ↑ |
164 |
Power source [-5 V] error |
w/ converter inverter assembly (MG ECU) |
| ↑ |
195 |
CPU recognition error |
w/ converter inverter assembly (MG ECU) |
| ↑ |
511 |
Power source [2.5 V] error |
w/ converter inverter assembly (MG ECU) |
| ↑ |
512 |
Power source [5 VA] error |
w/ converter inverter assembly (MG ECU) |
| ↑ |
794 |
R/D converter communication error |
w/ converter inverter assembly (MG ECU) |
MONITOR DESCRIPTION
The MG ECU performs diagnostic monitoring to verify proper operation of internal ECU systems. In one of these monitors, the MG ECU monitors the power supply for the motor main CPU. If the MG ECU detects a failure in the power supply of the motor main CPU, the HV control ECU illuminates the MIL and sets a DTC.INSPECTION PROCEDURE
| 1. REPLACE W/ CONVERTER INVERTER ASSEMBLY |
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