DTC 143

DTC P0A1D/143 HYBRID POWERTRAIN CONTROL MODULE

CIRCUIT DESCRIPTION

DTC Detection Condition:

The HV control ECU performs self-checks to detect an internal operating malfunction in the ECU.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

The HV control ECU performs diagnostic monitoring to verify proper operation of internal ECU systems. One of these monitors compares read and write values at the inside of the HV control ECU memory, which have been indicated by the transponder key or the electronic key. If those two values are inconsistent with each other, the HV control ECU interprets this as an ECU memory failure of the HV control ECU. The HV control ECU illuminates the MIL and sets a DTC.

INSPECTION PROCEDURE

If the above information (INF) code is present, replace the HV control ECU.

REPLACE HYBRID VEHICLE CONTROL ECU