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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> External Pages >> Different car >> Section 780 (Engine Control System - DTCS U0101 To P0153) >> U0164 Can Comm Circuit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U0164 Lost communication with Unified meter and A/C amp. When ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis) with Unified meter and A/C amp. for 2 seconds or more.
  • CAN communication line between Unified meter and A/C amp. and ECM
  • CAN communication line open or shorted
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