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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 451 (Power Tilt & Telescopic Steering Column - Diagnosis) >> Circuit Inspection >> DTC B2620 ECU Power Source Circuit Malfunction >> 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.

ECU power source circuit supply the battery positive voltage to power tilt and power telescopic ECU.

DTC - B2620 TROUBLE DETECTION

DTC No. DTC Detecting Condition Trouble Area
B2620 The condition that the voltage of the ECU power source circuit drop to be 9V or less continues for 10 seconds or more.
  • Battery
  • ECU power source circuit
  • Power tilt and power telescopic ECU