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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 162 (CRUISE CONTROL SYSTEMS)SYSTEM TESTSTEST NO. 2: SET FUNCTION NOT OCCURRING OR CANCEL FUNCTION OCCURRING (NO DTC OUTPUT)
2004 Toyota Matrix XR, FWD, Standard
Test No. 2: Set Function Not Occurring Or Cancel Function Occurring (No DTC Output)
2004 Toyota Matrix XR, FWD, StandardSECTION Test No. 2: Set Function Not Occurring Or Cancel Function Occurring (No DTC Output)
WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- Check ECU-IG No. 2 fuse (10-amp). ECU-IG No. 2 fuse is located in driver side junction block under left side of instrument panel. See Figure. If ECU-IG No. 2 fuse is okay, go to next step. If ECU-IG No. 2 fuse is defective, check for short between cruise control ECU 16-pin electrical harness connector terminal No. 9 (Yellow/Red wire) and ECU-IG No. 2 fuse. See CRUISE CONTROL in SYSTEM WIRING DIAGRAMS article. After repairs, perform confirmation test. See CONFIRMATION TEST .
- Turn ignition off. Remove cruise control ECU with connector attached. See Figure. Turn ignition on. Using a DVOM, measure voltage by backprobing between cruise control ECU 16-pin electrical harness connector terminals No. 9 (Yellow/Red wire) and No. 16 (White/Black wire). See Figure. If voltage is not 10-14 volts, go to next step. If voltage is 10-14 volts, no problem is indicated at this time. Fault may be intermittent, go to step 5.
- Turn ignition off. Remove cruise control ECU with connector attached. See Figure. Using a DVOM, measure resistance of ground circuit by backprobing between cruise control ECU 16-pin electrical harness connector terminal No. 16 (White/Black wire) and body ground point located under left side of instrument panel. See Figure. If resistance is less than 1 ohm, go to next step. If resistance is not less than 1 ohm, repair or replace wire, harness or connector as required. See CRUISE CONTROL in SYSTEM WIRING DIAGRAMS article. After repairs, perform confirmation test. See CONFIRMATION TEST .
- Check and repair all harnesses and connectors between cruise control ECU and battery. See CRUISE CONTROL in SYSTEM WIRING DIAGRAMS article. After repairs, perform confirmation test. See CONFIRMATION TEST .
- Turn ignition off. Disconnect cruise control ECU 16-pin electrical harness connector. Using DVOM, check cruise control ECU ground circuit. See CRUISE CONTROL in SYSTEM WIRING DIAGRAMS article. If ground circuit is faulty, repair and retest system. If ground circuit is okay, substitute original cruise control ECU with a known-good unit and recheck system operation. If system operates properly, original cruise control ECU was defective. If system still does not operate properly, perform cruise control ECU pin voltage check. See PIN VOLTAGE TESTS . Check wiring harness and electrical connectors for an intermittent problem. Repair wiring harnesses or connectors as necessary. See CRUISE CONTROL in SYSTEM WIRING DIAGRAMS article. If voltage values, harnesses and connectors are okay, replace cruise control ECU. See CRUISE CONTROL ELECTRONIC CONTROL UNIT under REMOVAL & INSTALLATION. After repairs, perform confirmation test. See CONFIRMATION TEST .
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.