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 512 (ELECTRONICALLY CONTROLLED BRAKE SYSTEM - DIAGNOSIS)DIAGNOSTIC TROUBLE CODES CHECK CLEAR

2004 Toyota Matrix XR, FWD, Standard

Diagnostic Trouble Codes Check Clear

2004 Toyota Matrix XR, FWD, StandardSECTION Diagnostic Trouble Codes Check Clear

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

DTC CHECK (USING HAND-HELD TESTER)
1. Checking DTCs.
1. Connect the hand-held tester to the DLC3.
2. Turn the power switch ON (READY).
3. Read the DTCs following the prompts on the tester screen.
HINT:

Refer to the hand-held tester operator's manual for further details.

Fig 1: Connecting Hand Held Tester To DLC 3
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DTC CHECK (USING SST CHECK WIRE)

Check DTCs.

Using SST, connect terminals TC and CG of the DLC3.
SST 09843-18040
Turn the power switch ON (READY).

Read the DTC from the Brake Control warning light, ABS warning light and VSC warning light on the combination meter.

Fig 2: Locating TC And CG Terminal For Connection

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DIAGNOSTIC TROUBLE CODES CHECK

Brake Control warning light	DTC of ECB system
ABS warning light	DTC of ABS system
VSC warning light	DTC of Enhanced VSC system

HINT:

If no code appears, inspect the diagnostic circuit or ABS warning light circuit.

WARNING LIGHT CIRCUIT

Trouble Area	Go To
TC and CG terminal circuit	TC AND CG TERMINAL CIRCUIT
Brake Control warning light circuit	BRAKE CONTROL WARNING LIGHT CIRCUIT (REMAINS ON)
ABS warning light circuit	ABS WARNING LIGHT CIRCUIT (REMAINS ON)
VSC warning light circuit	VSC WARNING LIGHT CIRCUIT (REMAINS ON)

Fig 3: Identifying Warning Lights In USA And Canada

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

As an example, the blinking patterns for a normal system code and trouble codes 11 and 21 are shown on the left.

Codes are explained in the code table on DIAGNOSTIC TROUBLE CODE CHART .
After completing the check, disconnect terminals TC and CG of the DLC3, and turn off the display.

If 2 or more DTCs are detected at the same time, the DTCs will be displayed in ascending order.

Fig 4: Normal System Code Signals

CLEAR DTC (USING HAND-HELD TESTER)
1. Clearing the DTCs.
1. Connect the hand-held tester to the DLC3.
2. Turn the power switch ON (READY).
3. Operate the hand-held tester to clear the codes.
HINT:

Refer to the hand-held tester operator's manual for further details.

Fig 5: Connecting DLC3 To Hand Held Tester And Clearing Codes
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CLEAR DTC (USING SST CHECK WIRE)
1. Clear the DTCs using the SST check wire.
1. Using SST, connect terminals TC and CG of the DLC3.
  SST 09843-18040
2. Turn the power switch ON (READY).
  
  Fig 6: Locating TC And CG Of DL3 For Connection
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Clear the DTCs stored in the ECU by depressing the brake pedal 8 times or more within 5 seconds.
4. Check that the warning light indicates a normal system code.
5. Remove the SST.
HINT:

Clearing the DTCs cannot be performed by removing the battery cable or the ECU-IG fuse.

Fig 7: Clearing DTCs By Depressing Brake Pedal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
END OF CHECK CLEAR
1. Turn the power switch ON (READY).
2. Check that the Brake Control warning light, ABS warning light and VSC warning light go off within approximately 3 seconds.

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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.