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Home >> Toyota >> 2012 >> 4Runner Trail >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System (Diagnostic Codes & Symptom Tests) >> Can Communication System >> DTC U1002: Lost Communication with Gateway Module (MS Bus); DTC U1114: Lost Communication with Main Switch Module >> Inspection Procedure
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Inspection Procedure

NOTE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT: 

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

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