Question about 2003 Honda S2000
I am using a Ford wiring loom and find that the Honda alternator has 4 "control" wires where as the Ford altrnator has only 2.
The Honda alternator plug cables have the following code:-
Can you inform me how I wire in the Honda alternator?
Unfortunately the Honda alternator is regulated by the ECU, which allows the ECU to intelligently reduce alternator engine loading to improve fuel consumption. The intelligent system uses an electrical load detector (ELD) located near the battery to control the alternator output voltage. A two wire alternator has an inbuilt regulator that will always generate the required charging voltage. When a battery is fully charged and the electrical loading is low there is no need for generating the charging voltage, in this situation the honda alternator will reduce the output voltage to reduce engine loading, hence improved fuel economy.
Posted on Jun 20, 2009
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Posted on Jan 02, 2017
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Feb 27, 2012 | 2004 Honda S2000
Sep 04, 2011 | Ford Transit Connect Cars & Trucks
There is a Ford Technical Service Bulletin and Ford Repair Harness Connector Kit that may be your problem.
^ CHARGING - GENERATOR DISCHARGE - LOOSE OR WEAK CONTACT AT GENERATOR HARNESS CONNECTOR ^ WIRING - GENERATOR HARNESS CONNECTOR DAMAGE - LOOSE OR WEAK CONTACT FORD:
1985-90 ESCORT, TEMPO
1986-90 CROWN VICTORIA
1987-93 MUSTANG LINCOLN-MERCURY:
1986-90 GRAND MARQUIS, TOWN CAR
1987-92 COUGAR LIGHT TRUCK:
1985-90 BRONCO II
1986-94 F-150-350 SERIES
This TSB is being republished in its entirety to update the Service Procedure outlined in the Action.
When a generator fails, there are a few failure modes that may cause heat to be produced at the wiring harness-to-generator connector. This excess heat may damage the female terminals on the wiring harness, resulting in increased resistance. The increased resistance produces more heat. When the generator is replaced, the resistance produced by a damaged connector may damage the new generator and could result in a repeat repair, including installation of another generator. High resistance (caused by a damaged connector) will not go away until the damaged connector is replaced. ACTION:
Visually inspect the harness-to-generator connector for damage (heat, corrosion, distortion and cracking) before installing a new generator. Install the Generator Wiring Harness Connector Kit (E5AZ-14305-AA) if the harness-to-generator connector is damaged. The Generator Wiring Harness Connector Kit (E5AZ-14305-AA) contains the following:
^ One (1) Red Wire **** Connector ^ Two (2) Yellow Wire **** Connectors ^ One (1) Wire Connector Assembly ^ One (1) Instruction Sheet (I.S. 6849) PART NUMBER PART NAME
E5AZ-14305-AA Generator wiring Harness Connector Kit
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