Diagnostic article Generic OBD-II

P0AEE: Inverter-A temperature input zero is compared with the inverter average

Understand the GM P0AEE sensor rationality monitor and its six-hour off-time requirement.

Read before applying this article

Documented application

GM 2010 10OBDG10 Hybrid Diagnostics, only the cited controller and monitor. These are historical calibration examples; individual vehicle, engine and hardware applicability is not established.

The code alone does not identify a failed part or establish that a vehicle is safe to drive. Confirm the vehicle, reporting module and applicable service procedure.

P0AEE is the range/performance check for the inverter-temperature channel identified here as inverter A sensor one, using the controller variable PIM Temp 0. The table compares that value with the inverter-temperature average rather than imposing a simple hot limit.

The comparison is designed for startup after a soak

Ignition-off time must be at least 360 minutes. The inverter average and motor temperature must meet the stated minimum temperature, and the named motor/inverter circuit-limit faults must be inactive. The failure quantity is an absolute difference above 15°C between PIM Temp 0 and the inverter average.

The source includes a startup delay followed by a qualifying sample window. A difference observed after active inverter heating is not automatically evidence that this cold-start monitor failed under its required conditions.

Keep naming and timing precise

Record the controller's PIM Temp 0 value, inverter average, motor temperature and verified off-time from the same startup. Do not translate “sensor A” into an assumed physical phase or connector position; the document's channel naming is the supported mapping here.

The comparison does not establish which sensor is inaccurate and provides no replacement or resistance-test procedure. The correct inverter service information is needed for physical diagnosis. High-voltage power-electronics access requires trained personnel using prescribed isolation and verification, even though the reported problem concerns a temperature input.

Source and applicability

GM 2010 10OBDG10 Hybrid Diagnostics, only the cited controller and monitor. These are historical calibration examples; individual vehicle, engine and hardware applicability is not established. GM PDF, page 289.

Article source documents

  1. General Motors

    2010 10OBDG10 Hybrid Diagnostics

Source checks describe how the text was prepared; they do not certify a diagnosis or confirm compatibility with every vehicle using this code.

Original code reference

Dictionary definition

Drive Motor Inverter Temperature Sensor A Circuit Range/Performance

This definition retains its original catalog scope. The article above is limited to its explicitly documented application.

Reference scope

Generic OBD-II definition.

A manufacturer label does not establish the model, year, engine or module to which a diagnosis applies. Read the safety and diagnostic limits.

Definition source

  1. Community reference dataWal33D (Waleed Judah)
    DTC Database: pinned community code definitions

    Source checked · MIT