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 MANUALSMAZDA20103 L4-2.5LREPAIR AND DIAGNOSISSTARTING AND CHARGINGPOWER AND GROUND DISTRIBUTIONRELAYS AND MODULES - POWER AND GROUND DISTRIBUTIONRELAY BOXTESTING AND INSPECTIONRELAY BLOCK INSPECTION - WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM
2010 Mazda 3 L4-2.5L
Relay Block Inspection - With Advanced Keyless Entry And Push Button Start System
2010 Mazda 3 L4-2.5LSECTION Relay Block Inspection - With Advanced Keyless Entry And Push Button Start System
RELAY BLOCK INSPECTION [WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]
1. Disconnect the negative battery cable.
2. Remove the following parts:
a. Driver-side front scuff plate Front Scuff Plate Removal/Installation
b. Driver-side front side trim Front Side Trim Removal/Installation
c. Hood release lever Service and Repair
d. Upper panel Upper Panel Removal/Installation
e. Shift knob (MTX) Service and Repair
f. Selector lever knob (ATX) Automatic Transaxle Shift Mechanism Removal/Installation
g. Shift panel Shift Panel Removal/Installation
h. Side wall Side Wall Removal/Installation
i. Console Console Removal/Installation
j. Lower panel Lower Panel Removal/Installation
k. Knee bolster Knee Bolster Removal/Installation
3. Remove the relay block. Service and Repair
4. Verify that the continuity is as indicated in the table.
- If not as indicated in the table, replace the relay block.
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.