Lexus IS250 · Service Manual ENGINE

DIAGNOSTIC TROUBLE CODE CHART

Diagnostic trouble codes

ENTRY AND START SYSTEM 
DTC No.
Detection Item
Trouble Area
See page
B2271
Ignition Hold Monitor Malfunction
1. AM2 fuse
2. IG2 relay
3. Cowl side J/B RH
4. Cowl side J/B LH
5. Power source control ECU
6. Wire harness or connector
Click here
B2272
Ignition 1 Monitor Malfunction
1. AM2 Fuse
2. Cowl side J/B RH
3. Cowl side J/B LH
4. Power source control ECU
5. Wire harness or connector
Click here
B2273
Ignition 2 Monitor Malfunction
1. AM2 fuse
2. IG2 relay
3. Power source control ECU
4. Wire harness or connector
Click here
B2274
ACC Monitor Malfunction
1. AM2 fuse
2. Cowl side J/B RH
3. Power source control ECU
4. Wire harness or connector
Click here
B2275
STSW Monitor Malfunction
1. AM2 fuse
2. ECM
3. Steering lock ECU
4. Power source control ECU
5. Wire harness or connector
Click here
B2276
ACCR Signal Circuit Malfunction
1. Power source control ECU
2. ECM
3. Wire harness or connector
Click here
B2277
Detecting Vehicle Submersion
Power source control ECU
Click here
B2278
Engine Switch Circuit Malfunction
1. Engine switch
2. Power source control ECU
3. Wire harness or connector
Click here
B2281
"P" Signal Malfunction (Cable-Information does not Match to Bean-Information)
1. Power source control ECU
2. Shift lock control ECU
3. ECM
4. Wire harness or connector
Click here
B2282
Vehicle Speed Signal Malfunction (Cable-Information does not Match to Bean-Information)
1. Multiplex communication system
2. Combination meter system
3. Power source control ECU
4. Wire harness or connector
Click here
B2283
Vehicle Speed Sensor Malfunction
1. B2282 detection area
2. Combination meter
3. Speed sensor
4. Skid control ECU
5. Wire harness or connector
Click here
B2284
Brake Signal Malfunction (Cable-Information does not Match to Bean-Information)
1. Stop light switch
2. Multiplex communication system
3. CAN communication system
4. ECM
5. Power source control ECU
6 Wire harness or connector
Click here
B2285
Steering Lock Position Signal Circuit Malfunction
1. Power source control ECU
2. Steering lock ECU
3. Wire harness or connector
Click here
B2286
Runnable Signal Malfunction
1. Multiplex communication system
2. CAN communication system
3. ECM
4. Power source control ECU
5. Wire harness or connector
Click here
B2287
LIN Communication Master Malfunction
1. Power source control ECU
2. Certification ECU
3. Wire harness or connector
Click here
B2288
Steering Lock Signal Circuit Malfunction
1. Power source control ECU
2. Steering lock ECU
3. Wire harness or connector
Click here
B2289
Key Collation Waiting Time Over
1. Power source control ECU
2. Engine immobiliser system
3. Wire harness or connector
4. Certification ECU
Click here
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