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Home >> Saturn >> 2003 >> L200 L4-2.2L VIN F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Scan Tool Does Not Communicate With EBTCM
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Scan Tool Does Not Communicate With EBTCM

Schematic:




CIRCUIT DESCRIPTION
The electronic brake traction control module (EBTCM) has a dedicated Keyword 2000 (KW 2000) data link. This data link is only used for diagnostics/reprogramming. If the Scan tool cannot establish communications with the EBTCM, the fault could be caused by:
^ KW 2000 link from the DLC to the EBTCM is open, shorted to ground, or shorted to voltage
^ A fault in the EBTCM

Power/ground circuit fault to the EBTCM

TEST

Diagnostic Chart:





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