MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
2. Verify that the drive belt deflection/tension is within the specification. (See DRIVE BELT INSPECTION.)
-
Adjust if necessary.
3. Disconnect the negative battery cable.
4. Connect a circuit tester, capable of reading 120 A or over, between generator terminal B and the wiring harness.
5. Connect the negative battery cable.
6. Turn off all electrical loads.
7. Start the engine and increase the engine speed to 2,000 - 2,500 rpm.
8. Turn the following electrical loads on and verify that the current reading increases.
1. Headlights
2. Blower motor
3. Rear window defroster
-
If generator terminal B current will not increase, disassemble and inspect the generator.
NOTE: Current required for generating power varies with electrical loads applied. Standard current (Reference)
Measuring conditions
Room temperature: 20 °C {68 °F}
Voltage: 13.5 V
Engine hot