P0A1D / INF822

DTC P0A1D-162 Hybrid Powertrain Control Module
DTC P0A1D-821 Hybrid Powertrain Control Module
DTC P0A1D-822 Hybrid Powertrain Control Module
DTC P0A1D-823 Hybrid Powertrain Control Module

DESCRIPTION

DTC Detection Condition:

The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

The hybrid vehicle control ECU performs diagnostic monitoring to verify proper operation of internal ECU systems. For this diagnostics monitor, the hybrid vehicle control ECU checks the communication bus off count and the message register of the CAN (Controller Area Network) controller. If the hybrid vehicle control ECU detects an error in the communication bus off count or message register, it will conclude that there is a malfunction in the hybrid vehicle control ECU. The hybrid vehicle control ECU will illuminate the MIL and set a DTC.

Step 1:

INSPECTION PROCEDURE