Komatsu TB45 - Special Service Tools for ECM

EG-14
ECM GENERAL SERVICE INFORMATION
SST
DESCRIPTION
SST is a small, lightweight handheld tester. When connected to the
vehicle-side data link connector, it communicates with control units
installed on the vehicle and performs a variety of diagnostic tests.
FUNCTION AND APPLIED SYSTEM
Items Function
WORK SUPPORT Sends command to control unit to set status suitable for inspection and service.
FUNCTION SYSTEM Checks each system as ECM basic inspection.
SELF-DIAG RESULTS Receives self-diagnostic results from control unit and indicates DTCs and number of occurrences.
SELF-DIAG RESULTS
[MEMORY]
DTCs (Diagnostic Trouble Codes) recorded in control unit's memory are displayed.
DATA MONITOR Receives input/output signals from control unit and indicates and stores them to facilitate locating cause of
malfunctions.
DATA MONITOR [SPEC]
Active test Sends command to control unit to change output signals and check operation of output system.
DTC RECORD DISPLAY Indicates self-diagnostic results stored in ECM prior to the most recent "ERASE MEMORY".
Control unit part No. Displays control unit part number.
Control unit identification No. Displays control unit identification number.
Diagnostic systems Engine
WORK SUPPORT {
SELF-DIAG RESULTS {
SELF-DIAG RESULTS [MEMORY]
DATA MONITOR {
DATA MONITOR [SPEC] {
Active test {
DTC RECORD DISPLAY
Control unit part No. {
Control unit identification No.