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 ON/Closed Throttle/Park or Neutral/Accessories OFF, unless otherwise noted
14V High Voltage Circuit Current	-	Varies	This parameter displays the high voltage circuit current as determined by the accessory dc power control module. The parameter display range is -1638.4 to +1638.35 Amps.
14V Power Module Power Loss	-	Varies	The accessory DC power module converts high voltage (300V) direct current (DC) to low voltage (12V) DC for accessory electrical operation and to charge the 12 volt battery. This parameter indicates the difference in power (power loss) between the input power and the output power of the Accessory Power Module. The power loss is determined based upon High Voltage current and voltage, Low Voltage current and voltage, and Intermediate Voltage current and voltage measurements from the accessory power module internal sensors.
14V Power Module Status	-	Normal	The accessory power module converts high voltage (300V DC) to low voltage (12V DC) for accessory electrical operation and to charge the 12 volt battery. This parameter contains the control status of the accessory DC power module.
14V Power Module Temperature Sensor 1	-	Varies	This parameter displays the value received from temperature sensor 1 in the 14V Power Module.
14V Power Module Temperature Sensor 2	-	Varies	This parameter displays the value received from temperature sensor 2 in the 14V Power Module.
A/C Auto Air Recirculation	-	Varies	Air Conditioning Recirculation State - On or Off
A/C Compressor Clutch Relay Command	-	Varies	Air Conditioning Compressor State - On or Off
A/C Compressor Power Consumption	-	Varies	This parameter contains the Air Conditioning Compressor Electric Power which represents the actual A/C compressor electric power as reported by the accessory DC power control module to the hybrid powertrain control module and the ECM.
A/C Compressor Power Limit	-	Varies	This parameter contains the Air Conditioning Compressor Power Limit which represents the amount of power the hybrid powertrain control module allows the accessory DC power control module to use to run the compressor.
A/C Compressor Power Limit Rate of Change	-	Varies	This parameter contains the Air Conditioning Compressor Power Gradient which represents the power gradient the hybrid powertrain control module allows the accessory DC power control module to use to run the compressor.
A/C Disable - A/C Pressure Out of Range	-	Varies	Air Conditioning Compressor Pressure Disable - Yes or No
A/C Disengage History 1	-	None	The air conditioning (A/C) compressor may be disengaged by the ECM (Engine Control Module) for many reasons. These reasons are recorded by the A/C Disengage History parameters 1-8.
A/C Disengage History 2	-	None
A/C Disengage History 3	-	None
A/C Disengage History 4	-	None
A/C Disengage History 5	-	None
A/C Disengage History 6	-	None
A/C Disengage History 7	-	None
A/C Disengage History 8	-	None
A/C High Side Pressure Switch	-	Varies	Displays the status of the A/C high side pressure switch.
A/C Low Side Pressure Switch	-	Varies	Displays the status of the A/C low side pressure switch.
A/C off for WOT	-	No	Air Conditioning Compressor Wide Open Throttle Disable.
A/C Request Signal	-	Varies	Air Conditioning Request On
Auxiliary Transmission Fluid Pump	-	Varies	This parameter displays the actual speed of the auxiliary transmission fluid pump in revolutions per minute.
Auxiliary Transmission Fluid Pump	-	Varies	This parameter contains the torque value, in Y, for the auxiliary transmission fluid pump motor.
Auxiliary Transmission Fluid Pump Command	-	Varies	This parameter displays the commanded torque value for the auxiliary transmission fluid pump.
Auxiliary Transmission Fluid Pump Current	-	Varies	This parameter indicates the DC current consumed by the auxiliary transmission fluid pump motor.
Auxiliary Transmission Fluid Pump Inverter DC Voltage	-	Varies	This indicates the voltage on the DC bus at the auxiliary transmission fluid pump inverter.
Auxiliary Transmission Fluid Pump Inverter Status	-	Varies	This indicates the actual state of the auxiliary transmission fluid pump inverter.
Auxiliary Transmission Fluid Pump Temperature	-	Varies	This indicates the temperature of the auxiliary transmission fluid pump motor measured by a sensor.
Axle Torque	-	Varies	This parameter displays actual axle torque. The parameter display range is -8192 to +8191.75 N.m.
Axle Torque Command	-	Varies	This parameter displays commanded axle torque. The parameter display range is -8192 to +8191.75 N.m.
Axle Torque Immediate	-	Varies	This parameter displays the immediate axle torque required when accelerating. The parameter display range is -8192 to +8191.75 N.m.
Brake Pedal Position Circuit Signal	-	No	Brake Pedal Apply Active indicates that the brake pedal apply input to the controller indicates that the brake is applied.
Brake Pedal Position Sensor Learned Released Position	-	Yes	Brake Pedal Fully Released Position Learn Complete indicates that the brake pedal fully released position has been successfully learned.
Brake Pedal Position Sensor Signal	-	No	Indicates if the brake pedal is applied or released.
Calculated Line Pressure	-	Varies	This indicates the expected actual line pressure after accounting for pump loss factors.
Calculated Line Pressure	-	Varies	This indicates the calculated transmission fluid line pressure.
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%.
Calculated Throttle Position	Pedal Fully Depressed	100%
Contactor Open reason History 1	-	Varies	Displays the reason the high voltage contactors were commanded open.
Contactor Open reason History 2	-	Varies	Displays the reason the high voltage contactors were commanded open.
Contactor Open reason History 3	-	Varies	Displays the reason the high voltage contactors were commanded open.
Contactor Open reason History 4	-	Varies	Displays the reason the high voltage contactors were commanded open.
Contactor Open reason History 5	-	Varies	Displays the reason the high voltage contactors were commanded open.
Contactor Open reason History 6	-	Varies	Displays the reason the high voltage contactors were commanded open.
Contactor Open reason History 7	-	Varies	Displays the reason the high voltage contactors were commanded open.
Contactor Open reason History 8	-	Varies	Displays the reason the high voltage contactors were commanded open.
Continuous Charge Mode Command	-	Varies	Indicates if the continuous charge node is active.
Drive Motor Current	-	Varies	Indicates current being consumed by the drive motor.
Drive Motor Inverter Status	-	Varies	This indicates the actual state of the drive motor inverter.
Drive Motor Inverter Supply Voltage	-	Varies	This indicates the voltage available to the drive motor inverter.
Drive Motor Speed	-	Varies	This indicates the actual drive motor speed.
Drive Motor Torque	-	Varies	This indicates the calculated torque output value for the drive motor
Driver Requested Axle Torque	-	No	This parameter displays the drivers request for axle torque.
ECM Challenge Status	-	Varies	Indicates if the engine control module has sent out a request to the immobilizer module to reply with a password.
Extended Travel Brake Pedal Position Signal	-	Varies	Indicates the brake pedal travel beyond a moderate / extended travel threshold by the platform brake sensing module and is received over serial data.
Extended Travel Brake Pedal Switch	-	Varies	Indicates the state of the extended travel brake switch input to the ECM.
Hybrid/EV Battery Pack Current	-	Varies	This parameter displays the actual current flow of the high voltage (300V) 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%.
Hybrid Powertrain Control Module Authentication Status	-	Varies	This 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 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 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.
Ignition 1 Signal	-	Varies	This parameter displays the voltage of the ignition feed circuit of the hybrid powertrain control module.
Immobilizer Auto Learn Counter	-	Varies	This indicates the number of autolearn cycles that have been successfully completed within the immobilizer system.
Immobilizer Automatic Learn Timer	-	Varies	This indicates the time elapsed within the current autolearn cycle within the immobilizer system.
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 Password Learn Scan Tool Delay	-	Varies	Tool Learn Delay Active 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	Security Code Accepted indicates that the received security code is correct.
Immobilizer Security Code Lockout	-	Varies	Security Code Lockout Active indicates that the security code has not passed and lockout is active.
Immobilizer Security Code Programmed	-	Varies	Indicates that the security code has been programmed.
Immobilizer Security Code Programming Counter	-	Varies	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	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 indicates that the immobilizer key has been programmed.
Immobilizer System Status	-	Varies	Indicates the current state of the immobilizer algorithm.
Internal Mode Switch Range	-	Park or Neutral	This parameter displays the vehicle direction selected as determined by the manual shift shaft position switch, also referred to as the internal mode switch. The internal mode switch contains two discrete shift lever-actuated switch patterns. The internal mode switch range switch pattern is monitored by the TCM and is utilized to determine gear range as selected by the shift lever. The internal mode switch direction switch pattern is monitored by the hybrid powertrain control module and is utilized to determine vehicle direction and the Park/Neutral start safety condition as selected by the shift lever. The parameter display range is Park, Reverse, Neutral, Drive, Transition, Invalid and Illegal Setting.
Internal Mode Switch 2	-	Hi/Low	Indicates the status of the transmission Internal Mode Switch direction contacts.
Internal Mode Switch 2 - D1	-	Hi/Low	Indicates the status of the transmission Internal Mode Switch direction contacts.
Internal Mode Switch 2 - D2	-	Hi/Low	Indicates the status of the transmission Internal Mode Switch direction contacts.
Internal Mode Switch 2 - R1	-	Hi/Low	Indicates the status of the transmission Internal Mode Switch direction contacts.
Internal Mode Switch 2 - R2	-	Hi/Low	Indicates the status of the transmission Internal Mode Switch direction contacts.
Internal Mode Switch 2 -S	-	Hi/Low	Indicates the status of the transmission Internal Mode Switch direction contacts.
Low Voltage Circuit Current	-	Varies	Displays the value low voltage (12 V) circuit current as detected by the accessory DC power control module.
Low Voltage Circuit Voltage	-	Varies	Displays the value low voltage (12 V) circuit as detected by the accessory DC power control module.
Maximum Hybrid/EV Battery Module Temperature	-	Varies	Indicates the temperature of the hybrid battery module with the highest temperature.
Minimum Hybrid/EV Battery Module Temperature	-	Varies	Indicates the temperature of the hybrid battery module with the lowest temperature.
Output Shaft Direction	-	Varies	Indicates the direction of a transmission output shaft rotation.
Power Mode	-	Varies	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	Indicates the Regenerative Braking Axle Torque Request value sent from the anti lock brake module to the hybrid powertrain control module.
Regenerative Braking Torque Predicted	-	Varies	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	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.
Torque Delivered Signal	-	Varies	Indicates engine steady state torque
Torque Delivered Signal	-	Varies	This indicates the actual drive motor torque delivered.
Total Brake Torque	-	Varies	Indicates the actual state of blended regenerative braking as determined by the hybrid control module.
Transmission Fluid Temperature	-	Varies	Indicates that the last autostart was triggered due to transmission temperature out of range.
Transmission OSS	-	Varies	Transmission Output Speed.
Transmission Torque Command	-	Varies	Indicates the commanded transmission output torque.
Vehicle Speed Sensor	-	Varies	Indicates vehicle speed calculated from the transmission output speed.
VIN Programming Counter	-	Varies	Indicates the number of times the VIN has been programmed. This counter can only be incremented.

Hybrid Powertrain Control Module Scan Tool Output Controls

Output Control	Description
Aux. Trans. Pump Speed	The hybrid powertrain control module commands the auxiliary transmission fluid pump control module to turn the auxiliary pump ON and OFF. Additionally, the hybrid powertrain control module commands the auxiliary pump to operate at a certain speed (RPM). When operating the Auxiliary Transmission Oil Pump Speed control, the following control limits apply: The internal combustion engine (ICE) must be OFF. Electric motor speed must be 0 RPM.
Check High Voltage System Related DTCs	Indicates if any high voltage system related DTCs are present.
Clear Secured High Voltage DTC	NOTE: Perform the high voltage disable procedure and repair or replace damaged high voltage components as specified in the applicable diagnostic prior using this control. The hybrid powertrain control module monitors for a high voltage present condition after the high voltage contactor relays have been opened. When high voltage is present this DTC will set. The hybrid powertrain control module clears the DTC Information for the high voltage present DTC. The following control limits apply: Vehicle must be ON. The hybrid powertrain control module must monitor that high voltage is not currently present. Communication DTCs must not be present. Turn the vehicle OFF and wait 5 minutes after performing this Output Control.
Regenerative Braking	The hybrid powertrain control module will enable or disable blended regenerative braking. When the vehicle is ON there are no limits to this control.