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 190 (STEERING COLUMN SWITCHES)CIRCUIT TESTSCOMBINATION SWITCH CIRCUIT
2004 Toyota Matrix XR, FWD, Standard
Combination Switch Circuit
2004 Toyota Matrix XR, FWD, StandardSECTION Combination Switch Circuit
WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
- Light Control Switch -
Connect the wire harness side connector to the combination switch and inspect the wire harness side connector from the back side. See CONNECTOR IDENTIFICATION . See INSPECTING COMBINATION SWITCH CIRCUIT (LIGHT CONTROL SWITCH) table.INSPECTING COMBINATION SWITCH CIRCUIT (LIGHT CONTROL SWITCH)
Tester Connection Condition Specified Condition 16 - Ground Constant Continuity 12 - Ground Light Control Switch OFF, TAIL Or HEAD No Voltage 12 - Ground Light Control Switch AUTO B+ Voltage 13 - Ground Light Control Switch OFF Or TAIL No Voltage 13 - Ground Light Control Switch HEAD B+ Voltage 14 - Ground Light Control Switch OFF No Voltage 14 - Ground Light Control Switch TAIL Or HEAD B+ Voltage - Headlight Dimmer Switch -
Connect the wire harness side connector to the combination switch and inspect the wire harness side connector from the back side. See CONNECTOR IDENTIFICATION . See INSPECTING COMBINATION SWITCH CIRCUIT (HEADLIGHT DIMMER SWITCH) table.INSPECTING COMBINATION SWITCH CIRCUIT (HEADLIGHT DIMMER SWITCH)
Tester Connection Condition Specified Condition 7 - Ground Headlight Dimmer Switch Low Beam No Voltage 7 - Ground Headlight Dimmer Switch High Beam Or Flash B+ Voltage 8 - Ground Headlight Dimmer Switch Low Beam Or High Beam No Voltage 8 - Ground Headlight Dimmer Switch Flash B+ Voltage 17 - Ground Headlight Dimmer Switch High Beam Or Flash No Voltage 17 - Ground Headlight Dimmer Switch Low Beam B+ Voltage - Fog Light Switch -
Connect the wire harness side connector to the combination switch and inspect the wire harness side connector from the back side. See CONNECTOR IDENTIFICATION . See INSPECTING COMBINATION SWITCH CIRCUIT (FOG LIGHT SWITCH) table.INSPECTING COMBINATION SWITCH CIRCUIT (FOG LIGHT SWITCH)
Tester Connection Condition Specified Condition 10 - Ground Headlight Dimmer Switch High Beam Or Flash No Continuity 10 - Ground Headlight Dimmer Switch Low Beam Continuity 11 - Ground Light Control Switch OFF Or TAIL No Voltage 11 - Ground Light Control Switch HEAD B+ Voltage - Turn Signal Switch -
Connect the wire harness side connector to the combination switch and inspect the wire harness side connector from the back side. See CONNECTOR IDENTIFICATION . See INSPECTING COMBINATION SWITCH CIRCUIT (TURN SIGNAL SWITCH) table.INSPECTING COMBINATION SWITCH CIRCUIT (TURN SIGNAL SWITCH)
Tester Connection Condition Specified Condition 1 - Ground Constant Continuity (1) 3 - Ground Constant Continuity (1) 2 - Ground Ignition Switch ON & Turn Signal Switch Position Neutral No Voltage 2 - Ground Hazard Warning Switch ON B+ Voltage 2 - Ground Ignition Switch ON & Turn Signal Switch Position Left Or Right B+ Voltage (1) There is resistance because this circuit is grounded through the bulb. - If the circuit is not as specified, inspect the circuit connected to other parts.
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.