Hybrid Powertrain Control Module Scan Tool Information
The hybrid powertrain control module is a non-serviceable module within the power inverter module, often referred to as the drive motor generator power inverter module assembly. The Hybrid Powertrain Control Module Scan Tool Data Parameters list contains hybrid controls-related parameters. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the Hybrid Powertrain Control Module 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 Hybrid Powertrain Control Module Scan Tool Data Parameters list represents values that would be seen on a normally running vehicle.
NOTE:
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.
Hybrid Powertrain Control Module Scan Tool Data Parameters
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Vehicle in Run | |||
| Auxiliary Transmission Fluid Pump | - | Varies | This parameter displays auxiliary transmission fluid pump speed in percent. The parameter display range is 0 - 100%. |
| Axle Torque | - | Varies | This parameter displays actual axle torque. The parameter display range is -8192 to +8191.75. |
| Axle Torque Command | - | Varies | This parameter displays commanded axle torque. The parameter display range is -8192 to +8191.75. |
| Axle Torque Immediate | - | Varies | This parameter displays the immediate axle torque required when accelerating. the parameter display range is -8192 to +8191.75. |
| Calculated Throttle Position | Pedal Released | 0% | This parameter displays the position of the accelerator pedal as determined by the ECM. This parameter is not active when the transmission is in Park or Neutral. 100% is displayed when the pedal is fully depressed. The parameter display range is 0 - 100%. |
| Pedal Fully Depressed | 100% | ||
| Contactor Open Reason History 1 | - | Varies | This parameter identifies why contactors were commanded open. |
| Contactor Open Reason History 2 | - | Varies | This parameter identifies why contactors were commanded open. |
| Contactor Open Reason History 3 | - | Varies | This parameter identifies why contactors were commanded open. |
| Contactor Open Reason History 4 | - | Varies | This parameter identifies why contactors were commanded open. |
| Contactor Open Reason History 5 | - | Varies | This parameter identifies why contactors were commanded open. |
| Contactor Open Reason History 6 | - | Varies | This parameter identifies why contactors were commanded open. |
| Contactor Open Reason History 7 | - | Varies | This parameter identifies why contactors were commanded open. |
| Contactor Open Reason History 8 | - | Varies | This parameter identifies why contactors were commanded open. |
| Drive Motor Current | - | Varies | This parameter indicates the DTC current consumed by the drive motor. |
| Drive Motor Current | - | Varies | This parameter indicates the current supplied to the drive motor. |
| Drive Motor Inverter Status | - | Varies | This parameter indicates the state of the inverter. |
| Drive Motor Inverter Status | - | Varies | This parameter indicates the current state of the drive motor inverter. |
| Drive Motor Inverter Supply Voltage Circuit | - | Varies | This parameter displays the high voltage circuit voltage as detected by the drive motor control which detects voltage in a range from 0 - 655.35 V. |
| Drive Motor Inverter Supply Voltage Circuit | - | Varies | This parameter indicates the voltage on the DC bus at the inverter for the drive motor. |
| Drive Motor Inverter Temperature Sensor 1 | - | Varies | This parameter indicates the temperature of inverter temperature sensor 1. |
| Drive Motor Inverter Temperature Sensor 2 | - | Varies | This parameter indicates the temperature of inverter temperature sensor 2. |
| Drive Motor Inverter Temperature Sensor 3 | - | Varies | This parameter indicates the temperature of inverter temperature sensor 3. |
| Drive Motor Negative Supply Isolation Voltage | - | Varies | This parameter indicates the high voltage negative to chassis voltage as measured at the motor. |
| Drive Motor Phase U Current | - | Varies | This parameter indicates the current flow to phase U of the electric motor. |
| Drive Motor Phase V Current | - | Varies | This parameter indicates the current flow to phase V of the electric motor. |
| Drive Motor Phase W Current | - | Varies | This parameter indicates the current flow to phase W of the electric motor. |
| Drive Motor Positive Supply Isolation Voltage | - | Varies | This parameter indicates the high voltage positive to chassis voltage as measured at the motor. |
| Drive Motor Speed | - | Varies | This parameter indicates the speed, in revolutions per minute, of hybrid electric motor 1 as determined from the resolver. |
| Drive Motor Temperature | - | Varies | This parameter indicates the temperature of inverter temperature sensor 1. |
| Drive Motor Torque | - | Varies | This parameter indicates the torque value for the drive motor. |
| Driver Requested Axle Torque | - | No | This parameter displays the status of an Autostart Entry due to the drivers request for axle torque. Autostart is requested when the drivers axle torque requirements cannot be maintained without the internal combustion engine. The parameter display range is Yes, No. |
| ECM Challenge Status | - | Varies | this parameter indicates if the engine control module has sent out a request to immobilizer module to reply with a password. |
| Hybrid Powertrain Control Module Authentication Status | - | Varies | This parameter indicates the result of the comparison between the last received immobilizer system response and the expected response calculated by the hybrid powertrain control module. |
| Hybrid Powertrain Control Module High Voltage Circuit | - | Varies | This parameter 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. |
| Hybrid Powertrain Control Module Response Source | - | Varies | This parameter will match the ECM parameter and indicates the source used to calculate the hybrid powertrain control module response. The sources include Normal Start, Remote Vehicle Start, PTO Remote Start. |
| Hybrid/EV Battery Pack Current | - | Varies | this parameter displays the actual current flow of the high voltage (300 V) electrical system as determined by the Hybrid Powertrain Control Module 2. The parameter display range is -1638.4 to +1638.35 Amps. A negative current value indicates a battery charge while a positive current value indicates a battery discharge. |
| Hybrid/EV Battery Pack State of Charge | - | Varies | This parameter displays the state of charge of the battery pack as determined by the Hybrid Powertrain Control Module 2. The parameter display range is 0 - 100%. |
| Ignition Input Accessory | - | Varies | This parameter displays the voltage of the accessory feed circuit of the hybrid powertrain control module. The parameter display range is 0 - 65.535 V. |
| Ignition Input Off/On/Start | - | Varies | This parameter displays the voltage of the ignition feed circuit of the hybrid powertrain control module. The parameter display range is 0 - 65.535 V. |
| Ignition 1 Signal | - | Varies | This parameter displays the voltage of the ignition feed circuit of the hybrid powertrain control module. |
| Immobilizer Password Learn | - | Varies | The vehicle theft deterrent (VTD) module must be put in a learn mode to learn the correct password when the module is replaced. |
| Immobilizer Automatic Learn Timer | - | Varies | This parameter indicates the time elapsed within the current autolearn cycle within the immobilizer system. |
| Immobilizer Password Learn Counter | - | Varies | This parameter indicates the number of times the immobilizer system password has been reset. |
| Immobilizer Password Learn Scan Tool Delay | - | Varies | This parameter indicates that the security code has been accepted but the tool learn delay is active and will not allow learning enabled, programming security code, or resetting security code. |
| Immobilizer Security Code Accepted | - | Varies | This parameter indicates that the received security code is correct. |
| Immobilizer Security Code Function | - | Varies | This parameter indicates the current state of the immobilizer security code function. |
| Immobilizer Security Code Lockout | - | Varies | This parameter indicates that the security code has not passed and lockout is active. |
| Immobilizer Security Code Lockout Active Timer | - | Varies | This parameter indicates the time elapsed since the receipt of the correct security code within the immobilizer system. |
| Immobilizer Security Code Programmed | - | Varies | This parameter indicates that the security code has been programmed. |
| Immobilizer Security Code Programming Counter | - | Varies | This parameter indicates the number of times a new immobilizer security code has been programmed through secure access. This counter can only be incremented. |
| Immobilizer Security Code Reset Counter | - | Varies | This parameter indicates the number of times the immobilizer security code has been reset to the default value through secure access. This counter can only be incremented. |
| Immobilizer Security Information Programmed | - | Varies | This parameter indicates that the immobilizer key has been programmed. |
| Immobilizer System Status | - | Varies | This parameter indicates the current state of the immobilizer algorithm. |
| Immobilizer Valid Response Received Time | - | Varies | This parameter indicates the actual time needed for the immobilizer to respond with a correct password. |
| Isolation Voltages Delta | - | Varies | This parameter indicates the voltage difference between the drive motor positive supply isolation voltage and the drive motor negative supply isolation voltage. |
| Isolation Voltages Ratio | - | Varies | This parameter indicates the ratio between the drive motor positive supply isolation voltage and the drive motor negative supply isolation voltage. |
| Maximum Hybrid/EV Battery Module Temperature | - | Varies | This parameter indicates the temperature of the hybrid battery module with the highest temperature. |
| Minimum Hybrid/EV Battery Module Temperature | - | Varies | This parameter indicates the temperature of the hybrid battery module with the lowest temperature. |
| Power Mode | - | Varies | This parameter displays system power mode status as determined by ignition switch inputs to the power mode master. System power mode status should match the ignition switch position. |
| Regenerative Braking Axle Torque Request | - | Varies | This parameter indicates the Regenerative Braking Axle Torque Request value sent form the anti-lock brake module to the hybrid powertrain control module. |
| Regenerative Braking Status | - | Varies | This Parameter identifies why contactors were commanded open. |
| Regenerative Braking Torque Predicted | - | Varies | This parameter indicates the Regenerative Braking Axle Torque Request value sent from the anti-lock brake module to the hybrid powertrain control module. |
| Security Code Lockout Active Timer | - | Varies | This parameter indicates the time elapsed since the immobilizer security code lockout has been activated either due to a battery disconnect or an incorrect immobilizer security code being entered. |
| Total Brake Torque | - | Varies | This parameter indicates the actual state of blended regenerative braking as determined by the hybrid control module. |
| Vehicle Speed Sensor | - | Varies | This parameter indicates vehicle speed calculated from the transmission output speed. |
| VIN Programming Counter | - | Varies | This parameter indicates the number of times the VIN has been programmed. This counter can only be incremented. |
Hybrid Powertrain Control Module Scan Tool Output Controls
| Functions | Description |
|---|---|
| Auxiliary Transmission Fluid Pump Speed | |
| Regenerative Braking Status |
|
| Clear Secured High Voltage DTC |
NOTE:
Performing a scan tool DTC Clear may clear the diagnostic that set the HV lockout state, but will not reset the lockout. |