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Problem Symptoms Table

SEAT BELT WARNING SYSTEM - PROBLEM SYMPTOMS TABLE

Symptom Suspected Area Refer To
Driver seat belt warning lamp does not flash
  1. Buckle switch circuit (driver side)
  2. Bulb circuit (driver side)
  3. ECU power source circuit

    If the 3 suspected areas above are functioning normally, replace the driver side J/B ECU.
  1. BUCKLE SWITCH CIRCUIT 
  2. PROBLEM SYMPTOMS TABLE
  3. ECU POWER SOURCE CIRCUIT 
Passenger seat belt warning lamp does not flash
  1. Buckle switch circuit (passenger side)
  2. Bulb circuit (passenger side)
  1. DTC B1656/38: SEAT BELT BUCKLE SWITCH (LH) MALFUNCTION
  2. PROBLEM SYMPTOMS TABLE
Seat belt warning buzzer does not sound
  1. Buzzer circuit
  2. Buckle switch circuit (driver side)

    If the 2 suspected areas above are functioning normally, replace the driver side J/B ECU.
  1. PROBLEM SYMPTOMS TABLE
  2. BUCKLE SWITCH CIRCUIT 
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