LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2008 >> Altima Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System (Hybrid)) >> Component Diagnosis >> U0129, U1022 Can Comm Circuit >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

WARNING: This page is about a different variant/trim than selected.
DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U0129 Lost communication with brake ECU CAN communication signal of OBD (emission related diagnosis) is not received between brake ECU and ECM for 1 second or more.
  • HEV SYSTEM CAN communication line between brake ECU and ECM
  • HEV SYSTEM CAN communication line short
U1022 CAN communication signal other than OBD (emission related diagnosis) is not received between brake ECU and ECM for 1 second or more.
scientia non olet · About LEMON Manuals