Operation CHARM: Car repair manuals for everyone.

Diagnosis System

DIAGNOSIS SYSTEM




The ECM controls the immobilizer function of the vehicle.

The data of the immobilizer or Diagnostic Trouble Code (DTC) can be read in the Data Link Connector 3 (DLC3) of the vehicle. When a trouble occurs in the immobilizer, Malfunction Indicator Lamp (MIL) does not come on but
DTC inspection is performed.

Therefore when there seems to be a trouble with immobilizer, use the hand-held tester or SST to check and troubleshoot it.