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 945 (OVERHEAD CONSOLE)COMPASS MINI-TRIP COMPUTERDIAGNOSIS AND TESTING - COMPASS MINI-TRIP COMPUTER
2004 Toyota Matrix XR, FWD, Standard
Diagnosis And Testing - Compass Mini-Trip Computer
2004 Toyota Matrix XR, FWD, StandardSECTION Diagnosis And Testing - Compass Mini-Trip Computer
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
A DRB III(R) scan tool is required for checking the PCI Data Bus circuit and the compass mini-trip computer.
- Remove the overhead console from the head-liner. Check for battery voltage at the fused B(+) circuit cavity of the CMTC module. If OK, go to Step 2. If not OK, repair the open fused B(+) circuit as required.
- Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Check for continuity between the ground circuit cavity of the CMTC module and a good ground. There should be continuity. If OK, go to Step 3. If not OK, repair the open ground circuit as required.
- Connect negative battery cable. Turn the ignition switch to the On position. Check for battery voltage at the fused ignition switch output (run/start) circuit cavity of the CMTC module. If OK, the voltage and ground supply to the module is OK at this time. If not OK, repair the open fused ignition switch output (run/start) circuit as required.
NOTE:
If the compass functions, but accuracy is suspect, it may be necessary to perform a variation adjustment. This procedure allows the compass unit to accommodate variations in the earth's magnetic field strength, based on geographic location. Refer to COMPASS VARIATION ADJUSTMENT
.
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.