Operation CHARM: Car repair manuals for everyone.
Home >> Lexus >> 2001 >> LS 430 V8-4.3L (3UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Testing and Inspection >> Component Tests and General Diagnostics >> Body No. 3 Control System >> Headlight Beam Level Control ECU Communication Circuit
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Headlight Beam Level Control ECU Communication Circuit

CIRCUIT DESCRIPTION

Passenger side J/B ECU receives error signals from the headlight leveling system. It also sends signals of the alternator, headlight ON and the daytime running light to the Headlight Beam Level Control ECU and operates the headlight beam level control system.

Wiring Diagram:






Step 1:




Step 2:




INSPECTION PROCEDURE
pro multis · About Operation CHARM