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Home >> Lexus >> 2011 >> LX 570 >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System With Push-Button Start (For Start Function) (Diagnostic Codes & Circuit Tests) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) >> DTC B2272: Ignition 1 Monitor Malfunction >> Description

DTC B2272: Ignition 1 Monitor Malfunction: Description

This DTC is stored when a malfunction occurs in the IG1D output circuit, which is between the IG1 No. 3 relay actuation circuit inside the main body ECU and the IG1 No. 3 relay.

DTC Code Detection Condition Trouble Area
B2272 The IG1 No. 3 relay actuation circuit inside the main body ECU or other related circuit is malfunctioning.
  • Main body ECU
  • Harness or connector
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