Ce-niehoff-co N1233 Troubleshooting Guides Uživatelský manuál stáhnout pdf (Strana 5)

Page 5

TG0021A

Section 3: Advanced Troubleshooting

Yes

Alternator is defective.

With engine off, unplug alternator-to-regulator harness. Connect DMM red lead to pin A on harness plug.

Connect black lead to pin F on same plug. Does resistance measure about 1.2 (± 0.2) ohms?

Chart 2 – No Alternator Output – Test OVCO Circuit

Yes

Connect DMM red lead to pin A on alternator-to-

regulator harness plug. Connect black lead to

alternator B– terminal. Does continuity exist?

Regulator is defective.

Alternator is defective.

Figure 4 – Alternator-to-Regulator Harness Plug

PIN CONNECTIONS

Pin A F–

Pin B Phase

Pin C B–

Pin D B+

Pin E D+

Pin F F+

(CONT’D)

1 2 3 4 5 6 7 8

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Ce-niehoff-co N1233 Troubleshooting Guides Uživatelský manuál Strana 5