DTC 159

DTC P0A1D/159 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 many diagnostic tests to verify proper operation of internal and external ECU systems. In one of these monitors, the HV control ECU checks the motor main CPU serial communication link. If the HV control ECU detects a failure, it will conclude that there is an internal malfunction involving the HV control ECU to motor main CPU communication link. The HV control ECU will illuminate the MIL and set a DTC.

INSPECTION PROCEDURE

If any of the above information (INF) codes is present, replace the HV control ECU.

REPLACE HYBRID VEHICLE CONTROL ECU