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 MANUALSMAZDA2001626 ES V6-2.5L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSSENSORS AND SWITCHES - COMPUTERS AND CONTROL SYSTEMSAIR FLOW METER/SENSORTESTING AND INSPECTIONUSING THE SST (104 PIN BREAKOUT BOX)
2001 Mazda 626 ES V6-2.5L DOHC
Using the SST (104 Pin Breakout Box)
2001 Mazda 626 ES V6-2.5L DOHCSECTION Using the SST (104 Pin Breakout Box)
1. Check the mass air flow sensor for damage and cracks.
- If there is damage or cracks, replace mass air flow sensor.
2. Disconnect the PCM connector.
3. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
4. Tighten the connector bolt.
Tightening torque: 7.9 - 10.7 N.m {80 - 110 kgf.m, 69.5 - 95.4 in.lbf}
5. Measure the voltage at the PCM terminal 58 as shown in the table.
- If not as specified, perform the MAF sensor circuit open/short inspection.
a. Harness continuity
- Between PCM terminal 58 and mass air flow sensor terminal E
- Between PCM terminal 36 and mass air flow sensor terminal D
- Between PCM terminal 76 and mass air flow sensor terminal C
- Between main relay terminal E and mass air flow sensor terminal B
b. Terminal voltage
- Mass air flow sensor terminal B voltage:
Battery positive voltage
- Mass air flow sensor terminal C voltage:
Below 1.0 V
6. If the terminal voltage is correct and there is harness continuity, replace the mass air flow sensor.
- If there is damage or cracks, replace mass air flow sensor.
2. Disconnect the PCM connector.
3. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
4. Tighten the connector bolt.
Tightening torque: 7.9 - 10.7 N.m {80 - 110 kgf.m, 69.5 - 95.4 in.lbf}
5. Measure the voltage at the PCM terminal 58 as shown in the table.
- If not as specified, perform the MAF sensor circuit open/short inspection.
a. Harness continuity
- Between PCM terminal 58 and mass air flow sensor terminal E
- Between PCM terminal 36 and mass air flow sensor terminal D
- Between PCM terminal 76 and mass air flow sensor terminal C
- Between main relay terminal E and mass air flow sensor terminal B
b. Terminal voltage
- Mass air flow sensor terminal B voltage:
Battery positive voltage
- Mass air flow sensor terminal C voltage:
Below 1.0 V
6. If the terminal voltage is correct and there is harness continuity, replace the mass air flow sensor.
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.