LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2003 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 522 (Troubleshooting) >> Description >> DRIVER SIDE Junction Block CONTROL SYSTEM
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DRIVER SIDE Junction Block CONTROL SYSTEM

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
DRIVER SIDE J/B CONTROL SYSTEM - TROUBLESHOOTING

Control ECU Master control system Sub control system
Driver side J/B control ECU
  • Automatic light control system
  • Light auto turn off system
  • Illumination system (Switch illuminations, Combination meter illumination)
  • Driver side buckle illumination
  • Illuminated entry system
  • Rheostat light control system
  • Daytime running light system
  • Back-up light system
  • License plate light
  • Stop light system
  • Taillight system
  • Turn signal and hazard warning system
  • Front fog light system
  • Front clearance light
  • Headlight system
  • Side marker light
  • Electric tension reducer system
  • Luggage compartment door opener system
  • Theft deterrent system
  • Combination meter (Pad wear indicator light)
  • Seat belt warning system
  • Remote control mirror system
  • Retract mirror system
  • Power shoulder belt anchorage system
  • Fuel lid opener system
  • Headlight cleaner system
  • Wiper system