Generator Warning Light Operation
- Verify that the battery is fully charged.
- Verify that the drive belt deflection/tension is within the specification. See BELT TENSION under ADJUSTMENTS.
- Turn the ignition switch to ON position and verify that the generator warning light illuminates. If warning light does not illuminate, inspect generator warning light, wiring harnesses between the battery, PCM harness connector terminal 3U and the generator warning light. See Fig 1.
- Verify that the generator or warning light goes off after the engine is started. If it does not goes out, connect Worldwide Diagnostic System (WDS), or equivalent scan tool, and check if any DTCs in the on-board diagnostic system are displayed.
- For 2002 models, see RETRIEVING DIAGNOSTIC TROUBLE CODES in SELF-DIAGNOSTICS - MX-5 MIATA article in ENGINE PERFORMANCE.
- For 2003 models, see RETRIEVING DIAGNOSTIC TROUBLE CODES in SELF-DIAGNOSTICS - MX-5 MIATA article in ENGINE PERFORMANCE.
- For 2004 models, see RETRIEVING DIAGNOSTIC TROUBLE CODES in SELF-DIAGNOSTICS - MX-5 MIATA article in ENGINE PERFORMANCE.
On all applications, if no DTCs are present, perform appropriate test under ON-VEHICLE TESTS .