C.E. Nierhoff & Co C815 Troubleshooting Manual Download Page 4

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Page 4

TG0007A

C. E. Niehoff & Co.

BRUSHLESS ALTERNATORS

Section 3: Advanced Troubleshooting

Yes

For “no voltage output” condition: • with

ener

energize switch

gize switch

, go to Chart 2, page 5.

• with

ignition switch

, go to Chart 3, page 6.

Is there a battery isolator in the system?

Chart 1 – System Circuit

Install temporary jumper between one battery terminal and
alternator terminal on isolator. Use minimum 12 AWG wire.

Do not operate charging system more than two
minutes with jumper installed. Charging system

voltage will be abnormally high and damage other components.

START HERE

CAUTION

Section 3: Advanced Troubleshooting

Page 4

TG7B

Summary of Contents for C815

Page 1: ...sure the meter leads touch source area only Prevent short circuit damage to test leads or source by not allowing meter leads to touch other pins or exposed wires in test area Be sure to use CEN tools...

Page 2: ...vehicle electrical loads are switched on and off Alternator output current is self limiting and will not exceed rated capacity of alternator A2 128 regulator used with all units has R terminal for op...

Page 3: ...ack lead to alternator B terminal Clamp inductive ammeter on B cable 6 Operate vehicle Operate vehicle Operate vehicle Operate vehicle Operate vehicle Observe charge voltage If voltage is at or below...

Page 4: ...ch ignition switch ignition switch ignition switch go to Chart 3 page 6 Is there a battery isolator in the system Chart 1 System Circuit Install temporary jumper between one battery terminal and alter...

Page 5: ...egulator to energize switch is good Energize switch is defective Repair vehicle circuit to energize switch Continue test Yes No Repair vehicle circuit from E teminal on regulator to energize switch on...

Page 6: ...es No Repair vehicle wiring as necessary Continue test Yes Unplug alternator to regulator harness Plug CEN Regulator Bypass Adapter A10 129 into harness plug Make sure black lead does not touch ground...

Page 7: ...tor or any of these test procedures or if you need to locate a Factory Authorized Service Distributor please contact us at C E Niehoff Co 2021 Lee Street Evanston IL 60202 USA TEL 800 643 4633 USA and...