Diesel Data: Automotive Repair

DTC 140

DTC P0A1D/140 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 ECU systems. One of these tests checks for errors after a memory read/write diagnostic test. If the HV control ECU detects this malfunction inside of the ECU, it will illuminate the MIL and set a DTC.

INSPECTION PROCEDURE

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

REPLACE HYBRID VEHICLE CONTROL ECU