MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Backup Lamp Switch: Testing and Inspection
BACK-UP LIGHT SWITCH INSPECTION
1. Disconnect the back-up light switch connector.
2. Inspect for continuity between the back-up light switch terminals using an ohmmeter.
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If not as specified, replace the back-up light switch.