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 MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 747 (CRUISE CONTROL SYSTEM - DIAGNOSIS)CRUISE CONTROL SWITCH CIRCUITINSPECTION PROCEDURE

2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, 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.

INSPECT CRUISE CONTROL MAIN SWITCH ASSY
1. Turn the ignition switch off.
2. Disconnect the cruise control main switch connector.
  
  Fig 1: Disconnecting Cruise Control Main Switch Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in Fig 2 .
  Standard:
  
  Fig 2: Resistance Between Cruise Control Main Switch Assembly Specifications Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPLACE CRUISE CONTROL MAIN SWITCH ASSY (SEE REPLACEMENT )
OK: Go to next step.
INSPECT SPIRAL CABLE SUB-ASSY
1. Disconnect the ECM side spiral cable connector.
  
  Fig 3: Disconnecting ECM Side Spiral Cable Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in Fig 4 .
  Standard:
  
  Fig 4: Resistance Between Spiral Cable Sub-Assy Specifications Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPLACE SPIRAL CABLE SUB-ASSY (SEE SPIRAL CABLE )
OK: Go to next step.
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSY - BODY GROUND)
1. Measure the resistance according to the value(s) in Fig 6 .
  
  Fig 5: Identifying Terminal ECC
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 6: Resistance Between Spiral Cable Sub-Assy & Body Ground Specifications Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSY - BODY GROUND)
  
  OK: Go to next step.
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSY - ECM)
1. Disconnect the E7 connector of the ECM.
  
  Fig 7: Disconnecting E7 Connector Of ECM
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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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.