P0A1D-787
P311 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0A1D-721,P0A1D-722,P0A1D-723,P0A1D-765,P0A1D-787: Hybrid Powertrain Control Module
DTC P0A1D-721 - Hybrid Powertrain Control Module
DTC P0A1D-722 - Hybrid Powertrain Control Module
DTC P0A1D-723 - Hybrid Powertrain Control Module
DTC P0A1D-765 - Hybrid Powertrain Control Module
DTC P0A1D-787 - Hybrid Powertrain Control Module
DESCRIPTION
The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.
MONITOR DESCRIPTION
The hybrid vehicle control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these diagnostics, the hybrid vehicle control ECU checks the result of the ECM self-test. If the hybrid vehicle control ECU detects a "Fail" from the ECM self-test, it will conclude that there is an internal malfunction in the ECM. The hybrid vehicle control ECU will illuminate the MIL and set a DTC.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
COMPONENT OPERATING RANGE
INSPECTION PROCEDURE
CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
HINT: Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
PROCEDURE
1. REPLACE HYBRID VEHICLE CONTROL ECU
HINT: Components
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