Mazda MX-3 silhouetteMX-3

Troubleshooting — Precautions to take when servicing an electrical system

Z-GI-11prose procedure

MX-3 Wiring Diagram booklet. Top-left tab 'Z-GI-11', bottom-right page code 'Z-11'.

Precautions to take when servicing an electrical system

Note the following items when servicing the electrical system.
The negative (−) battery cable must be removed first and installed last.
Secure harnesses with provided clamps to take up slack.
Do not handle electrical components roughly or drop them.
Do not replace with fuses exceeding specified capacity.
Tape areas of the harness that may rub or bump against sharp edges to protect it from damage.
When mounting components, be sure the harness is not caught or damaged.
Disconnect heat-sensitive parts (for example, relays and ECU) when performing maintenance (such as welding) where temperatures may exceed 80°C (176°F).
Make sure that the connectors are securely connected when installed.

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