Scan Tool Data Definitions - GMC chevrolet camaro 2000 Service Manual

5-126 Antilock Brake System
Use the EBCM Scan Tool Data Lists as directed by a
diagnostic table or in order to supplement the
diagnostic procedures. Begin all the diagnostic
procedures with the ABS Diagnostic Starting Point.
Use the EBCM Scan Tool Data Lists only after
the following is determined:
" There is no published DTC procedure nor
published symptom procedure for the customer
concern.
OR
.. The DTC or symptom diagnostic procedure
indicated by the diagnostic system check does not
resolve the customer concern.
Brakes
The Typical Data Values are obtained from a properly
operating vehicle under the conditions specified in
the first row of the Scan Tool Data List table.
Comparison of the parameter values from the suspect
vehicle with the Typical Data Values may reveal
the source of the customer concern.
The ID Information menu is located on the EBCM
main screen.
EBCM Scan Tool Data List
Ignition is ON, engine OFF, and vehicle is stationary
Scan Tool Parameter Data list
Brake Switch Status ABS
EBCM to PCM Requested
TCS
Torque
Engine Speed
ABS/TCS
Left Front Wheel Speed ABS/TCS
Left Rear Wheel Speed ABS/TCS
Pump Monitor State
ABS
Right Front Wheel Speed ABS/TCS
Right Rear Wheel Speed ABS/TCS
Rear Wheel Speed ABS/TCS
TCS State
ABS/TCS
TCS Status
.·
ABS/TCS
TCS Switch State TCS
Throttle Angle
ABS/TCS
Valve Relay State ABS/TCS
Vehicle Speed ABS/TCS
Scan Tool Data Definitions
The ABS Scan Tool Data Definitions contain a brief
description of all the ABS/traction scan tool
parameters. This list is in alphanumeric order.
Brake Switch Status: The scan tool displays Applied
or Released - The scan tool displays the state of the
brake switch.
Engine Speed: The scan tool displays 0-10200 RPM
- This is essentially a digital tachometer display.
LF Wheel Speed: The scan tool displays 0~255 km/h
or 0-158 mph - The scan tool displays the actual speed
of the left front wheel.
LR Wheel Speed: The scan tool displays 0-255 km/h
or 0-158 mph - The scan tool displays the actual speed
of the left rear wheel.
Pump Monitor State: The scan tool displays On. or
Off - This parameter indicates the state of the
return pump relay.
Rear Wheel Speed: The scan tool displays
0-255 km/h or 0-158 mph - The scan tool displays
the actual speed of the rear wheels.
RF Wheel Speed: The scan tool displays 0-255 km/h
or 0-158 mph - The scan tool displays the actual speed
of the right front wheel.
Units Displayed Typical Data Value
Applied/Released Released
% 90
RPM 0
km/h.or mph 0
km/h or mph
0
On/Off Off
km/h or mph
0
..
km/h or mph
0
Km/Hor mph 0
Active/Inactive Inactive
I nab le/Disable lnable
On/Off
Off
% 0
On/Off Off
km/h or mph
0
RR Wheel Speed: The scan tool displays 0-255 km/h
or 0-158 mph - The scan tool displays the actual speed
of the right rear wheel.
TCS State: The scan tool displays Active or Inactive
- This parameter indicates if the TCS is currently in
a TCS event or not.
TCS Status: The scan tool displays lnable or
Disable - The parameter indicates the state ofthe
TCS based on if the operator has disabled TCS
by pressing the TCS On/Off switch, or if the TCS is
disabled because of a malfunction.
TCS SwitchState: The scan tool displays On or Off
- This parameter indicates the state of the traction
control switch.
Throttle Angle: The scan tool displays % - The
scan tool displays in percent of throttle open.
Valve Relay State: The scan tool displays On or Off
- This parameter indicates the state of the valve relay.
Vehicle Speed: The scan tool displays 0-255 km/h or
0-158 mph - The scan tool displays the vehicle speed.
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