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Problem Symptoms Table

PROBLEM SYMPTOMS REFERENCE

Problem symptom Suspected area See
Door lock switch circuit on driver's door.
  1. Power window regulator master switch assembly
  2. Multiplex network door ECU
  3. Wire harness
  4. Front door lock assembly
  1. DTC B1222 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR 
  2. DTC B1222 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR 
  3. -
  4. DTC B1222 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR 
Door lock switch circuit on passenger's door.
  1. Door lock control switch assembly
  2. Multiplex network door ECU
  3. Wire harness
  4. Front door lock assembly
  1. DTC B1224 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR 
  2. DTC B1224 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR 
  3. -
  4. DTC B1224 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR 
Key confinement prevention function does not work properly.
  1. Key unlock warning switch assembly
  2. Door courtesy switch
  3. Door lock motor
  4. Multiplex network door ECU
  5. Transponder key ECU
  1. KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY (UNLOCK WARNING SWITCH CIRCUIT) 
  2. KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY (COURTESY LAMP SWITCH CIRCUIT) 
  3. DTC B1222 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR  and DTC B1224 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR 
  4. KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY (UNLOCK WARNING SWITCH CIRCUIT) 
  5. TERMINALS OF ECU 
Door lock system does not operate at all.
  1. Power window regulator master switch assembly
  2. Door lock control switch
  3. Multiplex network door ECU (driver's and passenger's)
  4. Theft warning ECU
  1. DTC B1222 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR 
  2. DTC B1224 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR 
  3. DTC B1222 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR  and DTC B1224 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR 
  4. TERMINALS OF ECU 
Automatic locking function.
  1. Speedometer assembly
  2. Theft warning ECU
  1. MALFUNCTION IN SPEEDOMETER
  2. AUTOMATIC LOCKING FUNCTION BY VEHICLES SPEED DOES NOT WORK