RX400h · Service Manual HYBRID SYSTEM

P0A1D-144

Diagnostic trouble codes

DESCRIPTION

The HV control ECU monitors internal operations and detects a malfunction.
DTC No.
INF Code
DTC Detection Condition
Trouble Area
P0A1D
144
ECU internal error
HV control ECU

145
ECU internal error
HV control ECU

MONITOR DESCRIPTION

The HV control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these diagnostics, the HV control ECU performs a self-test. If the HV control ECU detects an internal problem during this self-test, it will conclude that there is an internal malfunction. The HV control ECU will illuminate the MIL and set a DTC.

INSPECTION PROCEDURE


1. REPLACE HYBRID VEHICLE CONTROL ECU

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COMPLETED


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