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Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area
B1200  MPX Body ECU Stop
  • Multiplex network body ECU (cowl side junction block ECU RH)
  • Wire harness
B1201  Mayday ECU Communication Stop
  • Mayday ECU
  • Wire harness
B1210  Power ECU Stop
  • Power source control ECU
  • Wire harness
B1204  Driver Side Seat Switch ECU
Communication Stop
  • Integration control and panel assembly
  • Wire harness
B1205  AFS ECU Communication Stop
  • Headlight swivel ECU assembly
  • Wire harness
B1206  P/W Master Switch
Communication Stop
  • Multiplex network master switch assembly
  • Wire harness
B1207  Smart ECU Stop
  • Certification ECU
  • Wire harness
B1211  Driver Door ECU Communication Stop
  • Multiplex network door ECU front LH (driver side door ECU)
  • Wire harness
B1212  Front Passenger Door ECU
Communication Stop
  • Multiplex network door ECU front RH (front passenger side door ECU)
  • Wire harness
B1213  Tilt and Telescopic ECU
Communication Stop
  • Multiplex tilt and telescopic ECU
  • Wire harness
B1214  Short to B+ in Door System
Communication Bus Malfunction
  • Certification ECU
  • Position control ECU and switch assembly (front passenger side)
  • Multiplex network door ECU front RH (front passenger side door ECU)
  • Multiplex network door ECU rear RH (rear door RH)
  • Multiplex network switch (rear RH)
  • Multiplex network door ECU rear LH (rear door LH)
  • Multiplex network switch (rear LH)
  • Multiplex network door ECU front LH (driver side door ECU)
  • Multiplex network master switch assembly
  • Sliding roof control ECU
  • Overhead junction block
  • Power source control ECU
  • Network gateway ECU
  • Wire harness
B1215  Short to GND in Door System
Communication Bus Malfunction
  • Certification ECU 
  • Position control ECU and switch assembly (front passenger side) 
  • Multiplex network door ECU front RH (front passenger side door ECU) 
  • Multiplex network door ECU rear RH (rear door RH) 
  • Multiplex network switch (rear RH) 
  • Multiplex network door ECU rear LH (rear door LH) 
  • Multiplex network switch (rear LH) 
  • Multiplex network door ECU front LH (driver side door ECU) 
  • Multiplex network master switch assembly 
  • Sliding roof control ECU 
  • Overhead junction block 
  • Power source control ECU 
  • Network gateway ECU 
  • Wire harness 
B1216  Rear Door ECU RH
Communication Stop
  • Multiplex network door ECU rear RH (rear door RH)
  • Wire harness
B1217  Rear Door ECU LH
Communication Stop
  • Multiplex network door ECU rear LH (rear door LH)
  • Wire harness
B1247  Tire Pressure Monitor Receiver
Communication Stop
  • Tire pressure warning ECU
  • Wire harness
B1262  A/C ECU Communication Stop
  • A/C amplifier assembly No. 2 (A/C ECU)
  • Wire harness
B1263  Luggage Room Junction Block
ECU Communication Stop
  • Multiplex network rear ECU (luggage room junction block ECU)
  • Wire harness
B1266  Short to B+ in Instrument Panel System Communication Bus Malfunction
  • Combination switch assembly (windshield wiper switch)
  • Center airbag sensor assembly
  • A/C amplifier assembly No. 2 (A/C ECU)
  • Integration control and panel assembly (mirror switch)
  • Network gateway ECU
  • Wire harness
B1267  Short to GND in Instrument Panel System Communication Bus Malfunction
  • Combination switch assembly (windshield wiper switch)
  • Airbag sensor assembly center
  • A/C amplifier assembly No. 2 (A/C ECU)
  • Integration control and panel assembly (mirror switch)
  • Network gateway ECU
  • Wire harness
B1271  Combination Meter ECU
Communication Stop
  • Combination meter assembly (meter ECU)
  • Wire harness
B1272  Power Seat ECU Communication Stop
  • Position control ECU and switch assembly (driver side)
  • Wire harness
B1273  Sliding Roof ECU Communication Stop
  • Sliding roof control ECU
  • Wire harness
B1278  Combination Switch ECU
Communication Stop
  • Combination switch assembly (windshield wiper switch)
  • Wire harness
B1279  Rain Sensor Communication Stop
  • Rain sensor
  • Wire harness
B1280  Left Side Junction Block ECU
Communication Stop
  • Cowl side junction block LH (cowl side junction block ECU LH)
  • Wire harness
B1281  Airbag ECU Communication Stop
  • Center airbag sensor assembly
  • Wire harness
B1289  Passenger Seat ECU
Communication Stop
  • Position control ECU and switch assembly (front passenger side)
  • Wire harness
B1291  Short to B+ in Light System
Communication Bus Malfunction
  • Network gateway ECU
  • No. 1 junction block (multiplex network rear ECU)
  • Main body ECU LH
  • Position control ECU and switch (for driver side)
  • Engine room No. 1 relay block, junction block (front controller)
  • AFS ECU
  • Combination switch (windshield wiper switch)
  • Main body ECU RH
  • Multiplex tilt and telescopic ECU
  • Mayday ECU
  • Wire harness
B1292  Short to GND in Light System
Communication Bus Malfunction
  • Network gateway ECU
  • No. 1 junction block (multiplex network rear ECU)
  • Main body ECU LH
  • Position control ECU and switch (for driver side)
  • Engine room No. 1 relay block, junction block (front controller)
  • AFS ECU
  • Combination switch (windshield wiper switch)
  • Main body ECU RH
  • Multiplex tilt and telescopic ECU
  • Mayday ECU
  • Wire harness
B1296  Front Light ECU Communication Stop
  • Engine room No. 2 relay block (front controller)
  • Wire harness
B1297  Clearance Sonar ECU
Communication Stop
  • Clearance warning ECU assembly
  • Wire harness