Table 1: | Electronic Brake Control Module Scan Tool Data Parameters |
Table 2: | Electronic Brake Control Module Scan Tool Output Controls |
Parameter | Expected Value | Definition |
---|---|---|
Operating Conditions: Ignition ON | ||
ABS Active | No | The scan tool displays Yes or No. Yes is displayed if the ABS system is engaged. |
ABS Failed | No | The scan tool displays Yes or No. Yes is displayed if there is an ABS fault. |
Battery Voltage Signal | Varies | This displays volts. This is the voltage status of the electronic brake control module (EBCM). |
Brake Fluid Level Status | OK | The scan tool displays OK or Low. This is the state of the brake fluid level. |
Brake Pressure Sensor Input | Varies | The scan tool displays 0-5 Volts. The scan tool displays approximately 1.5 volts when the ignition is ON. |
BPP Signal | Released | The scan tool displays Applied or Released. This is the state of the brake pedal. |
Delivered Torque | 0% | The scan tool displays 0-100%. The scan tool displays the duty cycle of the delivered torque PWM signal. The duty cycle of the signal is used to transmit how much engine torque the ECM is delivering. Normal values are between 10 and 90 percent duty cycle. |
Digital HWPS Index Pulse | Varies | The scan tool displays High or Low. This is the state of the digital HWPS index pulse. Every time the steering wheel turns, it toggles between high and low. |
DRP Active | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
DRP Disabled | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
Engine Drag Control Failed | No | The scan tool displays Yes or No. The state of the engine drag control depends on the state of traction of the tires and engine RPM. |
HBB Calibration Status | Off | This displays On or Off. This is the commanded state of the passenger seat belt indicator. |
Lateral Accelerometer Signal | Off | This displays On or Off. This is the state of the passenger seat belt indicator. |
LF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the left front wheel speed sensor. |
LF Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front inlet valve solenoid is commanded on. |
LF Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front outlet valve solenoid is commanded on. |
LR Wheel Speed Sensor | OK | The scan tool displays OK or Low. This is the state of the washer fluid level. |
LR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear inlet valve solenoid is commanded on. |
LR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear outlet valve solenoid is commanded on. |
Panic Brake Assist Failed | No | The scan tool displays Yes or No. The state of the panic brake assist depends on the state of traction of the tires and engine RPM. |
Pump Motor Command Voltage | Varies | This displays Volts. This is the voltage status of the EBCM pump motor command. |
Requested Torque | 0% | The scan tool displays 0-10%. The scan tool displays the duty cycle of the Requested Torque PWM signal. The duty cycle of the signal is used to transmit how much engine torque the EBCM is requested. |
RF Inlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front inlet valve solenoid is commanded on. |
RF Outlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front outlet valve solenoid is commanded on. |
RF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
RR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear inlet valve solenoid is commanded on. |
RR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear outlet valve solenoid is commanded on. |
RR Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
Steering Wheel Position | Varies | This displays degrees. This is the signal received from the steering angle sensor. |
TCS Active | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
TCS Failed | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
VSES Active | No | The scan tool displays Yes or No. The scan tool displays Yes when VSES is active, and No when VSES is inactive. |
VSES Failed | No | The scan tool will display Yes or No depending on the state of the ABS indicator. |
Yaw Rate Sensor | Varies | This displays Volts. The voltage varies depending on the angle of the vehicle. |
BCM Brake Pedal Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
TCM Current Gear Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
ECM Accelerator Pedal Position Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
TCM Trans. Gear Up/Down Shift Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
BCM Traction Control Switch Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
TCM Trans. Output Shaft Speed Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
BCM Brake Fluid level Low Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
ECM Actual Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
ECM Requested Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
ECM Maximum Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
ECM Minimum Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
ECM Engine Speed Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
Scan Tool Output Control | Description |
---|---|
ABS Motor Test | This is used in order to command the ABS pump motor On or Off. |
Acceleration Sensor Reset | This is used in order to reset the acceleration sensor. |
Automated Bleed | This is used in order to bleed ABS hydraulics. Refer to Antilock Brake System Automated Bleed Procedure Antilock Brake System Automated Bleed Procedure. |
Brake Press. Sen. Calibration | This is used in order to calibrate the brake pressure sensor. |
LF Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
LF Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
LR Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
LR Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
RF Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
RF Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
RR Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
RR Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
Table 1: | Electronic Brake Control Module Scan Tool Data Parameters |
Table 2: | Electronic Brake Control Module Scan Tool Output Controls |
Parameter | Expected Value | Definition |
---|---|---|
Operating Conditions: Ignition ON | ||
ABS Active | No | The scan tool displays Yes or No. Yes is displayed if the ABS system is engaged. |
ABS Failed | No | The scan tool displays Yes or No. Yes is displayed if there is an ABS fault. |
ABS Slip Control power Status | Inactive | The scan tool displays Active or Inactive. |
Acceleration Sensor Supply Voltage | Varies | This displays volts. This is the voltage status of the supply circuit to the acceleration sensor. |
Accum. Pressure Sensor | Varies | This displays the pressure of the accumulator |
Battery Voltage Signal | Varies | This displays volts. This is the voltage status of the electronic brake control module (EBCM). |
BMC Primary Piston Position Sensor A | Varies | |
BMC Primary Piston Position Sensor B | Varies | |
BMC Primary Piston Reference Position | Varies | |
BMC Prim. Piston Pos. Sen. 5V Reference Position | Varies | |
BMC Primary Piston Position | Learned | |
Brake Fluid Level Status | OK | The scan tool displays OK or Low. This is the state of the brake fluid level. |
Brake Boost Power Status | Disabled | The scan tool displays Enabled or Disabled. |
Brake Boost Status | Active | The scan tool displays Active or Inactive. |
Brake Boost Solenoid Cmd. | Inactive | The scan tool displays Active or Inactive. |
Brake Pressure Sensor Input | Varies | This displays psi/kpa. This is the current brake applied pressure. |
Brake Switch Status | Released | The scan tool displays Applied or Released. This is the state of the brake pedal. |
Digital SWPS Phase A | Varies | The scan tool displays High or Low. This is the state of the digital SWPS index pulse. Every time the steering wheel turns, it toggles between high and low. |
Digital SWPS Phase B | Varies | The scan tool displays High or Low. This is the state of the digital SWPS index pulse. Every time the steering wheel turns, it toggles between high and low. |
DRP Active | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
DRP Disabled | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
Engine Drag Control Failed | No | The scan tool displays Yes or No. The state of the engine drag control depends on the state of traction of the tires and engine RPM. |
HS Communication | Yes | The scan tool displays Yes or No. |
Ignition Volts | Varies | This displays volts. This is the ignition voltage status of the electronic brake control module (EBCM). |
Lateral Accelerometer Signal | m/s² | The scan tool displays m/s ². This is the current rate of the vehicle acceleration or deceleration as reported by the lateral accelerometer sensor. |
Longitudinal Accelerometer Signal | Varies | The scan tool displays m/s ². This is the current rate of the vehicle acceleration or deceleration as reported by the longitudinal accelerometer sensor. |
Low Traction Lamp Command | Off | The scan tool displays On or Off. |
LF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the left front wheel speed sensor. |
LF Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front inlet valve solenoid is commanded on. |
LF Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front outlet valve solenoid is commanded on. |
LR Wheel Speed Sensor | OK | The scan tool displays OK or Low. This is the state of the washer fluid level. |
LR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear inlet valve solenoid is commanded on. |
LR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear outlet valve solenoid is commanded on. |
Master Cylinder Pressure Sensor Input | Varies | This displays psi/kpa. This is the current master cylinder applied pressure. |
NC Brake Boost Valve Cmd. | Inactive | The scan tool displays Active or Inactive. |
NO Brake Boost Valve Cmd. | Inactive | The scan tool displays Active or Inactive. |
Panic Brake Assist Failed | No | The scan tool displays Yes or No. The state of the panic brake assist depends on the state of traction of the tires and engine RPM. |
Pump Motor Command Voltage | Varies | This displays Volts. This is the voltage status of the EBCM pump motor command. |
Proportioning Solenoid Valve | Inactive | The scan tool displays Active or Inactive. |
Rear Brake Pressure Sensor | Varies | This displays psi/kpa. This is the current rear brake applied pressure. |
Regenerative Braking Status | Inactive | The scan tool displays Active or Inactive. |
RF Inlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front inlet valve solenoid is commanded on. |
RF Outlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front outlet valve solenoid is commanded on. |
RF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
RR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear inlet valve solenoid is commanded on. |
RR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear outlet valve solenoid is commanded on. |
RR Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
Steering Wheel Position | Varies | This displays °. This is the current angle of the steering position sensor. |
Steering Wheel Sensor Signal | Varies | This displays volts. This is the signal received from the steering angle sensor. |
TCS Active | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
TCS Failed | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
Torque Requested | Varies | The scan tool displays Lb-ft/N·m |
VSES Active | No | The scan tool displays Yes or No. The scan tool displays Yes when VSES is active, and No when VSES is inactive. |
VSES Failed | No | The scan tool will display Yes or No depending on the state of the ABS indicator. |
Yaw Rate Sensor | varies | This displays °/sec. The scan tool displays the signal received from the yaw rate sensor. |
Scan Tool Output Control | Description |
---|---|
Acceleration Sensor Reset | This is used in order to reset the acceleration sensor. |
Automated Bleed | This is used in order to bleed ABS hydraulics. Refer to Antilock Brake System Automated Bleed Procedure. |