| Table 1: | Electronic Brake Control Module Scan Tool Data Parameters |
| Table 2: | Electronic Brake Control Module Scan Tool Output Controls |
Parameter | System State | Expected Value | Description |
|---|---|---|---|
Operating Conditions: Ignition ON, Engine OFF and Brake released | |||
ABS | -- | Varies | The scan tool displays Enabled/Disabled. The scan tool displays Disabled when a current ABS disabling DTC is stored. |
Brake Fluid Level Status | -- | Ok | The scan tool displays Ok/Low. The scan tool displays Ok when the brake fluid level in the master cylinder reservoir is not detected as Low. |
Brake Switch Status | -- | Off | The scan tool displays On/Off. The scan tool displays On when the brake is applied. |
Ignition Voltage | -- | 12.0 Volts | The scan tool displays 0-18 Volts. The scan tool displays approximately 12 Volts when the ignition is ON. |
Left Front Wheel Speed | -- | 0 km/h 0 mph | The scan tool displays 0-327 km/h (0-204 mph). The scan tool displays 0 km/h (0 mph) when the vehicle is not moving or is moving at speeds less than or equal to 0 km/h (0 mph). |
Left Rear Wheel Speed | -- | 0 km/h 0 mph | The scan tool displays 0-327 km/h (0-204 mph). The scan tool displays 0 km/h (0 mph) when the vehicle is not moving or is moving at speeds less than or equal to 0 km/h (0 mph). |
LF Dump Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the left front dump valve solenoid is commanded on. |
LF Iso. Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the left front isolation valve solenoid is commanded on. |
LR Dump Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the left front dump valve solenoid is commanded on. |
LR Iso. Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the left front isolation valve solenoid is commanded on. |
RF Dump Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the right front dump valve solenoid is commanded on. |
RF Iso. Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the right front isolation valve solenoid is commanded on. |
Right Front Wheel Speed | -- | 0 km/h 0 mph | The scan tool displays 0-327 km/h (0-204 mph). The scan tool displays 0 km/h (0 mph) when the vehicle is not moving or is moving at speeds less than or equal to 0 km/h (0 mph). |
Right Rear Wheel Speed | -- | 0 km/h 0 mph | The scan tool displays 0-327 km/h (0-204 mph). The scan tool displays 0 km/h (0 mph) when the vehicle is not moving or is moving at speeds less than or equal to 0 km/h (0 mph). |
RR Dump Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the right front dump valve solenoid is commanded on. |
RR Iso. Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the right front isolation valve solenoid is commanded on. |
Service Brake Lamp Soon | -- | Varies | The scan tool displays On/Off. The scan tool displays On when the service auxiliary brake indicator is commanded on. |
Traction Control Active Lamp Commanded | -- | No | The scan tool displays Yes/No. The scan tool displays Yes when a TCS event is taking place. |
Traction Control Isolation Valve Command | -- | Off | The scan tool displays On/Off. The scan tool displays On when the TCS isolation valve solenoid is commanded on. |
Traction Control System | -- | Varies | The scan tool displays Enabled/Disabled. The scan tool displays Enabled when the traction control system is enabled. |
Traction Off Lamp Commanded | -- | Varies | The scan tool displays On/Off. The scan tool displays On when the traction off indicator is commanded on. |
Output Control | Description |
|---|---|
ABS Motor | This function allows the technician to command the ABS pump motor On and Off. |
Exhaust Brake Control | This function allows the technician to disable the exhaust brake control relay. When the Off key is pressed, the EBCM opens the ground circuit of the relay. |
LF Inlet Valve Solenoid | This function allows the technician to command the left front inlet valve solenoid On and Off |
LF Outlet Valve Solenoid | This function allows the technician to command the left front outlet valve solenoid On and Off |
LR Inlet Valve Solenoid | This function allows the technician to command the left rear outlet valve solenoid On and Off |
LR Outlet Valve Solenoid | This function allows the technician to command the left rear outlet valve solenoid On and Off |
Low Traction Lamp | This function allows the technician to command the low traction lamp indicator On and Off. |
New Tire/Wheel Base/Booster Info | This function allows the technician to read the current EBCM tire size, wheel base and brake assist system calibrations or to program the EBCM with the correct tire size, wheel base and brake assist system information for a specific vehicle. This procedure must be performed if different size tires are installed on the vehicle or if a new EBCM is installed in the vehicle. |
Read Tire/Wheel Base/Booster Info | This function allows the technician to read the current EBCM tire size, wheel base and brake assist system calibrations or to program the EBCM with the correct tire size, wheel base and brake assist system information for a specific vehicle. This procedure must be performed if different size tires are installed on the vehicle or if a new EBCM is installed in the vehicle. |
RF Inlet Valve Solenoid | This function allows the technician to command the right front inlet valve solenoid On and Off |
RF Outlet Valve Solenoid | This function allows the technician to command the right front outlet valve solenoid On and Off |
RR Inlet Valve Solenoid | This function allows the technician to command the right rear inlet valve solenoid On and Off |
RR Outlet Valve Solenoid | This function allows the technician to command the right rear outlet valve solenoid On and Off |
Service Brake Soon Lamp | This function allows the technician to command the service brake soon indicator On and Off. |
Traction Off Lamp | This function allows the technician to command the traction off lamp indicator On and Off. |
