FixVault
Home › Toyota › 2009 › Venza 2.7 E, AWD › Repair and Diagnosis › Accessories & Equipment › Communication Devices › Networking › Lin Communication System › Diagnostic Trouble Code Chart

Diagnostic Trouble Code Chart

Main Body ECU (Driver Side junction Block Assembly) 

DIAGNOSTIC TROUBLE CODE CHART - MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

DTC Code Detection Item Trouble Area
B1206  P/W Master Switch Communication Stop
  1. Multiplex network master switch assembly
  2. Main body ECU (Driver side junction block assembly)
  3. Wire harness or connector
  4. ECU-B NO. 2 fuse
B124D  Lost Communication with AFS LIN
  1. Inner rear view mirror assembly
  2. Wire harness or connector
  3. AFS ECU (headlight swivel ECU assembly)
B1273  Sliding Roof ECU Communication Stop
  1. Sliding roof ECU (Sliding roof drive gear assembly)
  2. Main body ECU (Driver side junction block assembly)
  3. Wire harness or connector
  4. S/R fuse
B2287  LIN Communication Master Malfunction
  1. Multiplex network master switch assembly
  2. Main body ECU (Driver side junction block assembly)
  3. Wire harness or connector
B2321  Driver Side Door ECU Communication Stop
  1. Power window regulator motor assembly (for Driver side)
  2. Main body ECU (Driver side junction block assembly)
  3. Multiplex network master switch assembly
  4. Wire harness or connector
  5. FL DOOR fuse
B2322  Front Passenger Side Door ECU Communication Stop
  1. Power window regulator motor assembly (for Front passenger side)
  2. Main body ECU (Driver side junction block assembly)
  3. Wire harness or connector
  4. FR DOOR fuse
B2323  Rear Door RH ECU Communication Stop
  1. Power window regulator motor assembly (for Rear RH side)
  2. Main body ECU (Driver side junction block assembly)
  3. Wire harness or connector
  4. RR DOOR fuse
B2324  Rear Door LH ECU Communication Stop
  1. Power window regulator motor assembly (for Rear LH side)
  2. Main body ECU (Driver side junction block assembly)
  3. Wire harness or connector
  4. RL DOOR fuse
B2325  LIN Communication Bus Malfunction
  1. Power window regulator motor assembly (for Driver side)
  2. Power window regulator motor assembly (for Front passenger side)
  3. Power window regulator motor assembly (for Rear RH side)
  4. Power window regulator motor assembly (for Rear LH side)
  5. Multiplex network master switch assembly
  6. Sliding roof ECU (Sliding roof drive gear assembly)
  7. Main body ECU (Driver side junction block assembly)
  8. Wire harness or connector

Certification ECU (Smart Key ECU Assembly) 

DIAGNOSTIC TROUBLE CODE CHART - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

DTC Code Detection Item Trouble Area
B2785  Communication Malfunction between ECUs Connected by LIN
  1. Certification ECU (Smart key ECU assembly)
  2. Power source control ECU (Power management control computer assembly)
  3. Steering lock ECU (Steering lock actuator assembly)
  4. Wire harness or connector
B2786  No Response from Steering Lock ECU
  1. Steering lock ECU (Steering lock actuator assembly)
  2. Certification ECU (Smart key ECU assembly)
  3. Wire harness or connector
  4. STR LOCK fuse
B278C  Lost Communication with Power Source Control
  1. Power source control ECU (Power management control computer assembly)
  2. Certification ECU (Smart key ECU assembly)
  3. Wire harness or connector
  4. AM2 fuse

AFS ECU (headlight swivel ECU assembly) 

DIAGNOSTIC TROUBLE CODE CHART - AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)

DTC Code Detection Item Trouble Area
B2432  Lost Communication with Automatic High Beam Control Sensor
  1. Inner rear view mirror assembly
  2. Wire harness or connector
  3. AFS ECU (headlight swivel ECU assembly)
About FixVault