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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

Smart Access System with Push-button Start 

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area
B2271  Ignition Hold Monitor Malfunction
  1. AM2 fuse
  2. Power source control ECU
  3. Wire harness or connector
B2272  Ignition 1 Monitor Malfunction
  1. Main body ECU RH (cowl side junction block RH)
  2. Main body ECU LH (cowl side junction block LH)
  3. Power source control ECU
  4. Wire harness or connector
B2273  Ignition 2 Monitor Malfunction
  1. IG2 relay
  2. Power source control ECU
  3. Wire harness or connector
B2274  ACC Monitor Malfunction
  1. Main body ECU RH (cowl side junction block RH)
  2. Power source control ECU
  3. Wire harness or connector
B2275  STSW Monitor Malfunction
  1. ECM
  2. Power source control ECU
  3. Wire harness or connector
B2276  ACCR Signal Circuit Malfunction
  1. Power source control ECU
  2. ECM
  3. Wire harness or connector
B2277  Detecting Vehicle Submersion Power source control ECU
B2278  Engine Switch Circuit Malfunction
  1. Engine switch
  2. Power source control ECU
  3. Wire harness or connector
B2281  "P" Signal Malfunction
  1. Power source control ECU
  2. Shift lock control ECU
  3. ECM
  4. Wire harness or connector
B2282  Vehicle Speed Signal Malfunction
  1. Multiplex communication system
  2. Combination meter
  3. Power source control ECU
  4. Wire harness or connector
B2283  Vehicle Speed Sensor Malfunction
  1. B2282 detection area
  2. Combination meter
  3. Speed sensor
  4. Skid control ECU
  5. Wire harness or connector
B2284  Brake Signal Malfunction
  1. Stop light switch
  2. Multiplex communication system
  3. CAN communication system
  4. ECM
  5. Power source control ECU
  6. Wire harness or connector
B2285  Steering Lock Position Signal Circuit Malfunction
  1. Power source control ECU
  2. Steering lock ECU
  3. Wire harness or connector
B2286  Runnable Signal Malfunction
  1. Multiplex communication system
  2. CAN communication system
  3. ECM
  4. Power source control ECU
  5. Wire harness or connector
B2287  LIN Communication Master Malfunction
  1. Power source control ECU
  2. Certification ECU (smart key ECU assembly)
  3. Wire harness or connector
B2288  Steering Lock Signal Circuit Malfunction
  1. Power source control ECU
  2. Steering lock ECU
  3. Wire harness or connector
B2289  Key Collation Waiting Time Over
  1. Power source control ECU
  2. Engine immobilizer system
  3. Wire harness or connector
  4. Certification ECU (smart key ECU assembly)
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