Defect of charging system (4JJ3 without DPD)

1. Defect of charging system diagnostics

1. Will not charge at all.

Battery failure

  • Replace.

Open circuit, short circuit, or disconnections in the wiring or ammeter

  • Repair.

Open circuit, poor ground, or short circuit in each coil of the generator, or broken diode

  • Replace.

IC regulator malfunction

  • Replace.

Poor connections at IC regulator terminal

  • Repair.

2. Insufficient charge

Battery failure

  • Replace.

Open circuit, short circuit, or disconnections in the wiring or ammeter

  • Repair.

Generator drive belt looseness

  • Adjust.

Stator coil layer short circuit

  • Replace.

Diode failure

  • Replace.

Poor terminal connections

  • Replace.

IC regulator malfunction

  • Replace.

Poor connections at IC regulator terminal

  • Repair.

3. Over charged.

IC regulator malfunction

  • Replace.

4. The charge voltage is unstable.

Intermittent contact or near open circuit of wiring

  • Repair.

Generator drive belt looseness

  • Adjust.

Short circuit or near open circuit in the stator coil

  • Repair.

Poor terminal connections

  • Repair.

IC regulator malfunction

  • Replace.

Poor connections at IC regulator terminal

  • Repair.
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