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 MANUALSMAZDA1998626 LX L4-2.0L DOHCREPAIR AND DIAGNOSISINSTRUMENT PANEL, GAUGES AND WARNING INDICATORSINSTRUMENT CLUSTER / CARRIERTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURES
1998 Mazda 626 LX L4-2.0L DOHC
Scan Tool Testing and Procedures
1998 Mazda 626 LX L4-2.0L DOHCSECTION Scan Tool Testing and Procedures
NOTE: In this mode, it is possible to check as following chart.
Diagnostic Trouble Code Chart
Operating Order
1. Turn the ignition switch to LOCK.
2. Disconnect the negative battery cable.
3. Reconnect the negative battery cable after 30 seconds or more.
4. Cycle the ignition switch to ON to LOCK 3 times.
5. Turn the ignition switch to ON.
6. Push the odometer/tripmeter switch 3 times.
Checking Order
NOTE
^ The diagnostic trouble codes are displayed in numerical order. (While performing the inspection, if you want to inspect a diagnostic trouble code of which the number is smaller that the code number you are currently inspecting, terminate the check mode then repeat the inspection from the beginning)
^ The diagnostic trouble codes can be fast forward by pushing and holding the odometer/tripmeter switch 1 second or more.
^ If rotate the wheels in the codes other than the DTC 10, cancel the input/output check mode.
1. Push the odometer/tripmeter switch and select the diagnostic trouble code.
2. Inspect each diagnostic trouble code by following the related inspection procedures.
Cancel Order
^ Cancel the input/output check mode by turning the ignition switch to LOCK then back to ON.
NOTE: Cancel the input/output check mode by leaving the instrument cluster in check mode for approximately 45 minutes.
Diagnostic Trouble Code Chart
Operating Order
1. Turn the ignition switch to LOCK.
2. Disconnect the negative battery cable.
3. Reconnect the negative battery cable after 30 seconds or more.
4. Cycle the ignition switch to ON to LOCK 3 times.
5. Turn the ignition switch to ON.
6. Push the odometer/tripmeter switch 3 times.
Checking Order
NOTE
^ The diagnostic trouble codes are displayed in numerical order. (While performing the inspection, if you want to inspect a diagnostic trouble code of which the number is smaller that the code number you are currently inspecting, terminate the check mode then repeat the inspection from the beginning)
^ The diagnostic trouble codes can be fast forward by pushing and holding the odometer/tripmeter switch 1 second or more.
^ If rotate the wheels in the codes other than the DTC 10, cancel the input/output check mode.
1. Push the odometer/tripmeter switch and select the diagnostic trouble code.
2. Inspect each diagnostic trouble code by following the related inspection procedures.
Cancel Order
^ Cancel the input/output check mode by turning the ignition switch to LOCK then back to ON.
NOTE: Cancel the input/output check mode by leaving the instrument cluster in check mode for approximately 45 minutes.
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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.