Determining Open Circuit Location (HS-Can) [Multiplex Communication System]: A: MTX

Possible cause 

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• Open circuit in wiring harness between PCM and connector C-02
• Open circuit in wiring harness between connector C-02 and branch A
• Connector C-02 malfunction
• PCM malfunction

Fig 1: Multiplex Communication System (MTX) - Wiring Diagram

Inspection item 

• PCM connector
• Connector C-02
• Wiring harness between PCM terminal 1AM and connector C-02
• Wiring harness between PCM terminal 1AI and connector C-02
• Wiring harness between connector C-02 and branch A
• PCM