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 731 (AIR CONDITIONING SYSTEM - DIAGNOSIS)DTC 24: SOLAR SENSOR CIRCUIT (DRIVER SIDE)INSPECTION 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 DRIVER SIDE JUNCTION BLOCK ASSY
1. Remove driver side junction block with connector.
2. Turn light control switch AUTO.
3. Measure voltage between terminals CLTB and CLTE of driver side junction block.
  Voltage: 10 to 14V
  
  Fig 1: Measuring Voltage Between Terminals CLTB And CLTE Of Driver Side Junction Block
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE DRIVER SIDE JUNCTION BLOCK ASSY

OK: Go to next step.
CHECK HARNESS AND CONNECTOR(BETWEEN BODY ECU AND SOLAR SENSOR)
1. Remove solar sensor with connectors still connected.
2. Turn the ignition switch ON.
3. Vehicle's surroundings are bright.
HINT: Connect the wire harness side connector to the sensor and inspect wire harness side connector from the back side, as shown.

Standard

Fig 2: Checking Harness And Connector (Between Body ECU And Solar Sensor)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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.