3.
Measure waveform between IPM and Alarm Control Siren Assy at LIN communication harness.
Fig.1) A waveform between IPM and Alarm Control Siren Assy at KEY ON
Ignition off and Connect scantool to Data Link Connector(DLC).
Ignition on & Engine off and select oscilloscope mode by scantool.
Measure waveform between IPM and Alarm Control Siren Assy at LIN communication harness.
Fig.1) A waveform between IPM and Alarm Control Siren Assy at KEY ON
Is measured waveform within specific?
 | ▶ Fault is intermittent caused by poor contact between IPM and Alarm Control Siren Assy and, DTC was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and go to "Verification Vehicle Repair" procedure. |
 | ▶ Go to "Terminal and Connector Inspection" procedure. |
