Communication System. Lexus Is250, Is220D. Gse20 Ale20
Multiplex Communication. Lexus Is250, Is220D. Gse20 Ale20
Multiplex Communication System -- Diagnostic Trouble Code Chart |
If malfunction code is displayed during DTC check, check the circuit corresponding to the code in the table below. Proceed to the page given for the circuit.
| DTC No. | Detection Item | Trouble Area | See page |
| B1200 | MPX Body ECU Stop | 1. Main Body ECU RH (cowl side J/B RH) 2. Wire harness | Click here |
| B1205 | AFS ECU Communication Stop | 1. AFS ECU 2. Wire harness | Click here |
| B1206 | P/W Master Switch Communication Stop | 1. Multiplex network master switch assembly (power window master switch) 2. Wire harness | Click here |
| B1207 | Smart ECU Stop | 1. Certification ECU 2. Wire harness | Click here |
| B1208 | Passenger Side Outer Mirror ECU | 1. Outer mirror control ECU (Passenger side) 2. Wire harness | Click here |
| B1209 | Driver Side Outer Mirror | 1. Outer mirror control ECU (Driver side) 2. Wire harness | Click here |
| B1210 | Power ECU Stop | 1. Power source control ECU 2. Wire harness | Click here |
| B1213 | Tilt and Telescopic ECU Communication Stop | 1. Tilt and telescopic ECU 2. Wire harness | Click here |
| B1214 | Short to B+ in Door System Communication Bus Malfunction | 1. Main body ECU RH (cowl side J/B RH) 2. Gateway ECU 3. Windshield wiper switch 4. Power window master switch assembly 5. Certification ECU 6. Power source control ECU 7. Main body ECU LH (cowl side J/B LH) 8. Front controller 9. Wire harness | Click here |
| B1215 | Short to GND in Door System Communication Bus Malfunction | 1. Main body ECU RH (cowl side J/B RH) 2. Gateway ECU 3. Windshield wiper switch 4. Power window master switch 5. Certification ECU 6. Power source control ECU 7. Main body ECU LH (cowl side J/B LH) 8. Front controller 9. Wire harness | Click here |
| B1248 | AVC-LAN Communication Impossible | 1. AVC-LAN (radio receiver or multi-display) 2. Wire harness | Click here |
| B1249 | Double Locking ECU Communication Stop | 1. Double door lock ECU 2. Wire harness | Click here |
| B1262 | A/C ECU Communication Stop | 1. Air conditioning amplifier (A/C ECU) 2. Wire harness | Click here |
| B1266 | Short to B+ in Instrument Panel System Communication Bus Malfunction | 1. Gateway ECU 2. Air conditioning amplifier (A/C ECU) 3. AFS ECU 4. Combination meter ECU 5. Wire harness | Click here |
| B1267 | Short to GND in Instrument Panel System Communication Bus Malfunction | 1. Gateway ECU 2. Air conditioning amplifier (A/C ECU) 3. AFS ECU 4. Combination meter ECU 5. Wire harness | Click here |
| B1271 | Combination Meter ECU Communication Stop | 1. Combination meter ECU 2. Wire harness | Click here |
| B1272 | Power Seat ECU Communication Stop | 1. Position control ECU and switch (driver seat ECU) 2. Wire harness | Click here |
| B1273 | Sliding Roof ECU Communication Stop | 1. Sliding roof control ECU 2. Wire harness | Click here |
| B1278 | Combination Switch ECU Communication Stop | 1. Combination switch assembly 2. Wire harness | Click here |
| B1279 | Rain Sensor Communication Stop | 1. Rain sensor 2. Wire harness | Click here |
| B1280 | Left Side Junction Block ECU Communication Stop | 1. Main body ECU LH (cowl side J/B LH) 2. Wire harness | Click here |
| B1289 | Passenger Seat ECU Communication Stop | 1. Position control ECU and switch (passenger seat ECU) 2. Wire harness | Click here |
| B1296 | Front Light ECU Communication Stop | 1. Front controller 2. Wire harness | Click here |
| B1297 | Clearance Sonar ECU Communication Stop | 1. Clearance warning ECU 2. Wire harness | Click here |