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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 464 (Driver Side Junction Block (Body No. 2 Control System) - Diagnosis) >> Circuit Inspection >> DTC B1268 Back-up Communication Bus Malfunction (between Combination Switch ECU and Driver Side Junction Block ECU) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is output when +B or GND short occurs between Driver side J/B ECU and combination switch ECU back-up communication bus.

CIRCUIT DESCRIPTION

DTC No. DTC Detecting Condition Trouble Area
B1268
  • No communication
  • Wire harness
  • Combination switch ECU
  • Driver side J/B ECU
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