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Headlight Beam Level Control System

HEADLIGHT BEAM LEVEL CONTROL SYSTEM - TROUBLESHOOTING

Symptom Suspect Area See Section
Beam axis is not controlled (It is not initialized).
Headlight beam level control system does not operate.
  1. Headlight beam level control actuator
  2. Headlight beam level control ECU communication circuit
  3. Headlight beam level control ECU
  4. Passenger side J/B ECU
  5. Skid control ECU
  1. INSPECTION
  2. HEADLIGHT BEAM LEVEL CONTROL ECU COMMUNICATION CIRCUIT
  3. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  4. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  5. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
Beam axis is not controlled (It is initialized).
Headlight beam level control system does not operate.
  1. Headlight beam level control actuator
  2. Height control sensor
  3. Suspension control ECU
  4. Headlight beam level control ECU communication circuit
  5. Headlight beam level control ECU
  6. Passenger side J/B ECU
  7. Skid control ECU
  1. INSPECTION
  2. INSPECTION
  3. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  4. HEADLIGHT BEAM LEVEL CONTROL ECU COMMUNICATION CIRCUIT
  5. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  6. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  7. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
Controlled angle of headlight is unusual (The angle is controlled).
  1. Height control sensor
  2. Suspension control ECU
  3. Headlights circuit
  4. Headlight beam level control ECU
  5. Passenger side J/B ECU
  6. Skid control ECU
  1. INSPECTION
  2. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  3. HEADLIGHT CIRCUIT
  4. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  5. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  6. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
Beam axis position is not stable during driving.
  1. ABS
  2. Headlights circuit
  3. Headlight beam level control ECU
  4. Passenger side J/B ECU
  5. Skid control ECU
  1. DIAGNOSIS & TESTING
  2. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  3. HEADLIGHT BEAM LEVEL CONTROL ECU COMMUNICATION CIRCUIT
  4. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
  5. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
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