2005 Lexus ES 330FACTORY OEM SERVICE PROCEDURE

Problem Symptoms Table

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

Warning Lights: 

PROBLEM SYMPTOMS TABLE - WARNING LIGHTS

Symptom Suspect Area
Check Engine warning light does not come on.
  1. Refer to troubleshooting
  2. Wire Harness or Connector
  3. ECM
  4. Combination Meter Assy
Discharge warning light does not come on.
  1. Perform ACTIVE TEST with hand-held tester
  2. Wire Harness or Connector
  3. ECM
  4. Combination Meter Assy
Brake warning light does not come on.
  1. Wire Harness or Connector
  2. Skid control ECU
  3. Combination Meter Assy
ABS warning light does not come on.
  1. Refer to troubleshooting
  2. Wire Harness or Connector
  3. Combination Meter Assy
SRS warning light does not come on.
  1. Perform ACTIVE TEST with hand-held tester
  2. Refer to troubleshooting
  3. Wire Harness or Connector
  4. Combination Meter Assy
Open Door warning light does not come on.
  1. Perform ACTIVE TEST with hand-held tester
  2. Wire Harness or Connector
  3. Door Courtesy Switch
  4. Body ECU
  5. Combination Meter Assy
Fuel Level warning light does not come on.
  1. Perform ACTIVE TEST with hand-held tester
  2. Wire Harness or Connector
  3. Fuel Sender Gauge
  4. Combination Meter Assy
Low Oil Pressure warning light does not come on.
  1. Perform ACTIVE TEST with hand-held tester
  2. Wire Harness or Connector
  3. Low Oil Pressure Warning Switch
  4. Combination Meter Assy
Driver's seat belt warning light does not come on.
  1. Perform ACTIVE TEST with hand-held tester
  2. Wire Harness or Connector
  3. Body ECU
  4. Front Inner Belt Assy
  5. Combination Meter Assy
VSC warning light does not come on.
  1. Refer to troubleshooting
  2. Wire Harness or Connector
  3. Combination Meter Assy

Indicator Lights: 

Fig 1: Indicator Lights Symptoms Table
G02606886Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Meter Gauges: 

METER GAUGES SYMPTOM REFERENCE

Symptom Suspect Area Reference
Speedometer does not operate.
  1. Refer to troubleshooting
  1. MALFUNCTION IN SPEEDOMETER
Water temperature does not operate.
  1. Refer to troubleshooting
  1. MALFUNCTION IN WATER TEMPERATURE RECEIVER GAUGE
Tachometer does not operate.
  1. Refer to troubleshooting
  1. MALFUNCTION IN TACHOMETER
Fuel Gauge does not operate or operates abnormally.
  1. Refer to troubleshooting
  1. MALFUNCTION IN FUEL RECEIVER GAUGE

Accessory Meter: 

Fig 2: Accessory Meter Table (1 Of 2)
G02606887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Factory Service Tools

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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.