Motor Control Module 1 Scan Tool Information
Motor control module 1 is a non-serviceable module within the power inverter module, often referred to as the drive motor generator power inverter module assembly. The Motor Control Module 1 Scan Tool Data Parameters list contains hybrid controls-related parameters. The list is arranged in alphabetical order.
Use the Motor Control Module 1 Scan Tool Data Parameters list only after the following is determined:
- The Diagnostic System Check - Vehicle is completed.
- No diagnostic trouble codes (DTCs)
- On-board diagnostics are functioning properly
The scan tool values from a properly running vehicle may be used for comparison with the vehicle you are diagnosing. The Motor Control Module 1 Scan Tool Data Parameters list represents values that would be seen on a normally running vehicle.
A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.
Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Hybrid Controls for diagnosis.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Vehicle ON/Closed Throttle/Park or Neutral/Accessories OFF, unless otherwise noted | |||
| Drive Motor 1 Current | - | Varies | This indicates the DC current consumed by hybrid electric motor 1. |
| Drive Motor 1 Inverter Status | - | Varies | This indicates the state of the Motor 1 Inverter. |
| Drive Motor 1 Inverter Supply Voltage Circuit | - | Varies | This indicates the voltage on the DC bus at the inverter for motor 1. This should be equal to the voltage measured at the inverter for motor 2. |
| Drive Motor 1 Negative Supply Isolation Voltage | - | Varies | This indicates the high voltage negative to chassis voltage as measured for motor 1. |
| Drive Motor 1 Phase U Current | - | Varies | This indicates the current flow to phase U of electric motor 1. |
| Drive Motor 1 Phase V Current | - | Varies | This indicates the current flow to phase V of electric motor 1. |
| Drive Motor 1 Phase W Current | - | Varies | This indicates the current flow to phase W of electric motor 1. |
| Drive Motor 1 Position Sensor Offset Learn Status | - | Varies | This indicates the status of the resolver offset learn for electric motor 1. This will update based on any resolver learn, whether performed automatically as part of normal vehicle operation or as the result of a device control. |
| Drive Motor 1 Positive Supply Isolation Voltage | - | Varies | This indicates the high voltage positive to chassis voltage as measured for motor 1. |
| Drive Motor 1 Speed | - | Varies | This indicates the speed, in revolutions per minute, of hybrid electric motor 1 as determined from the resolver. |
| Drive Motor 1 Temperature | - | Varies | This indicates the temperature for motor 1. |
| Drive Motor 1 Torque | - | Varies | This indicates the torque value for motor 1. |
| Hybrid Powertrain Control Module High Voltage Circuit | - | Varies | This displays the high voltage circuit voltage as detected by the hybrid powertrain control module which detects voltage in a range from 0-655.35 V. |
| Ignition 1 Signal | - | Varies | This parameter displays the voltage of the ignition feed circuit of the hybrid powertrain control module. |