SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 599 (LIGHTING SYSTEM - DIAGNOSIS)HEADLIGHT RELAY CIRCUITINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2002 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. DO ACTIVE TEST OF OBD II SCAN TOOL OR LEXUS HAND-HELD TESTER 
    1. Connect the LEXUS hand-held tester to the DLC3.
    2. Check that the headlight relay can operate in an ACTIVE TEST.

    Driver Side J/B ECU: 

    DRIVER SIDE J/B ECU INSPECTION

    Description (Symbols) Tester display Check condition
    Headlight HEAD LIGHT ON - OFF

    HINT:

    If the headlight relay is normal, the headlight Lo-beam comes "ON".

    In the case that the headlight relay is activated but the headlight Lo-beam does not come on, check the headlight circuit.

    1. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOM TABLE, SEE  PROBLEM SYMPTOMS TABLE  . 
    2. NG: GO TO NEXT STEP 
  2. INSPECT HEADLAMP RELAY 
    1. Inspect headlight relay continuity
    HEADLIGHT RELAY CONTINUITY INSPECTION

    Condition Tester connection Specified condition
    Constant 3 - 4 Continuity
    Apply B+ between terminals 3 and 4. 1 - 2 Continuity
    Fig 1: Inspecting Headlamp Relay
    G03386639Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE HEADLAMP RELAY 
    2. OK: GO TO NEXT STEP 
  3. CHECK HARNESS AND CONNECTOR 
    1. Check for open and short circuit in harness and connector between terminal HRLY of driver side J/B ECU and engine room No. 1 R/B.
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOM TABLE, SEE  PROBLEM SYMPTOMS TABLE  
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.