Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 354 (POWER WINDOW CONTROL SYSTEM - DIAGNOSTICS)POWER WINDOW REGULATOR MOTOR ASSY LH LIMIT SWITCH AND PULSE SENSOR CIRCUIT (DRIVER'S DOOR)INSPECTION PROCEDURE

2004 Toyota Celica GT, Standard

Inspection Procedure

2004 Toyota Celica GT, StandardSECTION Inspection Procedure

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.

CHECK WIRE HARNESS (LIMIT SWITCH CIRCUIT)
1. Disconnect the D17 power window regulator master switch and P7 power window regulator motor assy LH connectors.
  
  Fig 1: Disconnecting Power Window Regulator Master Switch & Power Window Regulator Motor Assy LH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the continuity between the disconnected connectors.
Standard:

Fig 2: Checking Continuity Between Limit Switch Circuit Specifications Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR

OK: Go to next step.
CHECK WIRE HARNESS (PULSE SENSOR CIRCUIT)
1. Disconnect the D17 power window regulator master switch and P7 power window regulator motor assy LH connectors.
  
  Fig 3: Disconnecting Power Window Regulator Master Switch & Power Window Regulator Motor Assy LH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the continuity between the disconnected connectors.
Standard:

Fig 4: Checking Continuity Between Pulse Sensor Circuit Specifications Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR

OK: Go to next step.
REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH
1. Replace the power window regulator motor assy LH.
2. Check the power window operation.
OK: END

NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY

RENDER: 1.0x

NO RELATED

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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.