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|1991 Honda Accord L4-2156cc 2.2L SOHC |
| Vehicle Level [pic] Starting and Charging [pic] Charging System [pic] Voltage Regulator [pic] Testing and Inspection [pic] |
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|Testing and Inspection |
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|Prior to performing test, check for proper alternator belt tension and proper electrical connections at alternator. Also check battery condition |
|and for blown fuses at fuse panel and engine compartment relay panel. |
|Disconnect electrical connector from alternator. |
|[pic]Fig. 3 Alternator Electrical Connector Pin Identification. 1989-91 Accord |
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|Fig. 4 Alternator Electrical Connector Pin Identification. 1989-91 Prelude |
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|With ignition switch On, check for battery voltage at alternator connector terminals IG and S On 1989 models or IG and on 1990-91 models, Figs. 3 |
|and 4. If battery voltage is indicated at both terminals, proceed to step 3. If no voltage is indicated, check for the following: |
|On 1989 models, check for open circuits in black/yellow wire between fuse panel and voltage regulator, and white/green wire between engine |
|compartment relay panel and voltage regulator. |
|On 1990-91 models, check for open circuit in white/green wire between engine compartment relay panel and voltage regulator. |
|On all models, check for blown fuse in fuse panel. |
|[pic]Fig. 5 Alternator Current Output Chart. 1989 Accord |
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|Fig. 6 Alternator Current Output Chart. 1990-91 Accord |
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|Fig. 7 Alternator Current Output Chart. 1989-91 Prelude |
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|To further test alternator and regulator, a Sun Vat 40 or other suitable charging system tester should be used. Follow tester manufacturer's |
|instructions for test connections and settings. When performing alternator and regulator tests with tester note the following: |
|When checking alternator output, operate engine at 2000 RPM with engine cooling fan off. Apply a load to charging system so that voltage drops to |
|no lower than 12 volts. Tester readings should be within 10 amps of readings indicated in Figs. 5 through 7. If readings are within specification, |
|charging system is operating properly, refer to CHARGE WARNING LAMP TEST . If readings are not within specification, proceed to step b. |
|[pic]Fig. 8 Alternator Full Field Access Hole Location. Mitsubishi Units |
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|Fig. 9 Alternator Full Field Access Hole Location. Nippon Denso Units |
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|Remove protective cover from alternator end cover. Perform full field test by inserting a suitable tool into full field access hole located on end |
|cover, Figs. 8 & 9. When alternator is in full field, system voltage will rise quickly.Do not allow voltage to exceed 18 volts or damage to |
|electrical system may result. Note tester amperage readings with alternator in full field. If readings are now within specification, replace |
|voltage regulator. If readings are still not within specification, replace alternator. |
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