Last Modified: 11-29-2007 1.6 T
Service Category: Vehicle Exterior Section: Window/Glass
Model Year: 2008 Model: Sequoia Doc ID: RM000002ZCA00EX
Title: WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: PROBLEM SYMPTOMS TABLE (2008 Sequoia)

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Window Defogger System

Symptom

Suspected Area

See page

Rear window defogger system does not operate

Back door glass position initialization

WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: INITIALIZATION (2008 Sequoia)

DEF fuse

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: DESCRIPTION (2008 Sequoia)

DEFOG relay

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: DESCRIPTION (2008 Sequoia)

Integration control and panel

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: DESCRIPTION (2008 Sequoia)

Air conditioning amplifier

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: TERMINALS OF ECU (2008 Sequoia)

LIN communication line

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: DESCRIPTION (2008 Sequoia)

CAN communication line

NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

Back door ECU

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Main body ECU

NETWORKING: CAN COMMUNICATION SYSTEM: DESCRIPTION (2008 Sequoia)

Harness and connector

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: DESCRIPTION (2008 Sequoia)