SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 357 (FRONT POWER SEAT CONTROL SYSTEM (WITH MEMORY) - DIAGNOSIS)PROBLEM SYMPTOMS TABLE
2004 Toyota Celica GT, Standard

Problem Symptoms Table

2004 Toyota Celica GT, StandardSECTION Problem Symptoms Table
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE - FRONT POWER SEAT CONTROL SYSTEM

Symptom Suspected Area
Power seat does not operate (manual or memorized positions).
  1. Power source circuit
  2. Position control ECU & switch assy
One function of power seat does not operate (manual or memorized positions).
  1. Power seat motor circuit
  2. Position control ECU & switch assy
One or all manual seat functions do not operate (memorized positions OK).
  1. Position control ECU & switch assy
Memory function does not operate.
  1. Power source circuit
  2. Power seat memory switch circuit
  3. Park/neutral position switch circuit
  4. Door courtesy switch circuit
  5. Position control ECU & switch assy
All memory functions do not operate or operate a little then stop (manual functions OK).
  1. Power source circuit
  2. Position control ECU & switch assy
One memory function does not operate or operates a little then stops (manual functions OK).
  1. Position control ECU & switch assy
  2. Power seat motor assy
Lumbar support does not operate.
  1. Power seat control switch circuit
The power seat control system does not control the storing and restoring of the adjustable pedal and power mirror position.
  1. Communication circuit
  2. Position control ECU & switch assy
  3. Outer Mirror Control ECU
  4. Adjustable pedal ECU
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.