LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Land Cruiser >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Systems - Diagnostics >> Taillight Relay Circuit >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

HINT:

In case of using the hand-held tester, start the inspection from step  1 and in case of not using the hand-held tester, start from step  2.

  1. Check taillight relay using hand-held tester. 

    PREPARATION: 

    Connect the hand-held tester to DLC 3.

    CHECK: 

    Check that the taillight relay can operate in ACTIVE TEST (See PRE-CHECK ).

    1. OK: Proceed to next circuit inspection shown on problem symptoms table (See  PROBLEM SYMPTOMS TABLE  ). 
    2. NG: Go to Next Step 
  2. Check Taillight relay (See  INSPECTION  ). 
    1. NG: Replace engine room J/B assy with wire harness. 
    2. OK: Proceed to next circuit inspection shown on problem symptoms table (See  PROBLEM SYMPTOMS TABLE  ).