Charging System: Testing and Inspection

CHARGING SYSTEM


Trouble Diagnosis with Multitasking Battery Diagnostic Station

Refer to diagnostic station instruction manual.

WORK FLOW






DIAGNOSTIC PROCEDURE 1

Check Charge Warning Lamp Circuit
1.CHECK CHARGE WARNING LAMP CIRCUIT CONNECTION
Check to see if terminal 2 is clean and tight.
OK or NG
OK - GO TO 2.
NG - Repair terminal 2 connection. Confirm repair by performing complete Starting/Charging system test. Refer to diagnostic station instruction manual.
2.CHECK CHARGE WARNING LAMP CIRCUIT
1. Disconnect generator connector F1.





2. Apply ground to generator connector F1 terminal 2 with the ignition switch in the ON position.





OK or NG
OK - GO TO "WORK FLOW" .
NG - Check the following.
- 10A fuse [No. 3, located in fuse block (J/B)]
- CHARGE lamp
- Harness for open or short between combination meter and fuse
- Harness for open or short between combination meter and generator

DIAGNOSTIC PROCEDURE 2

Check Battery Circuit
1.CHECK BATTERY CIRCUIT CONNECTION
Check to see if terminal 1 is clean and tight.
OK or NG
OK - GO TO 2.
NG - Repair terminal 1 connection. Confirm repair by performing complete Starting/Charging system test. Refer to diagnostic station instruction manual.
2.CHECK BATTERY CIRCUIT





Check voltage between generator connector F2 terminal 1 and ground using a digital circuit tester.






OK or NG
OK - GO TO 3.
NG - Check the following.
- 120A fusible link [letter a , located in fusible link box
(battery)]
- Harness for open or short between generator and fusible link
3.CHECK VOLTAGE DROP ON BATTERY CIRCUIT





Check voltage between generator connector F2 terminal 1 and battery positive terminal using a digital circuit tester.






OK or NG
OK - Replace the generator. Service and Repair . Confirm repair by performing complete
Starting/Charging system test. Refer to diagnostic station instruction manual.
NG - Check harness between the battery and the generator for poor continuity.

DIAGNOSTIC PROCEDURE 3

Check Voltage Regulator Circuit
1.CHECK VOLTAGE REGULATOR CIRCUIT CONNECTION
Check to see if terminal 3 is clean and tight.
OK or NG
OK - GO TO 2.
NG - Repair terminal 3 connection. Confirm repair by performing complete Starting/Charging system test. Refer to diagnostic station instruction manual.
2.CHECK VOLTAGE REGULATOR CIRCUIT





Check voltage between generator connector F1 terminal 3 and ground using a digital circuit tester.






OK or NG
OK - GO TO 3.
NG - Check the following.
- 10A fuse (No. 29, located in fuse and fusible link box)
- Harness for open or short between generator and fuse
3.CHECK VOLTAGE DROP ON VOLTAGE REGULATOR CIRCUIT





Check voltage between generator connector F1 terminal 3 and battery positive terminal using a digital circuit tester.






OK or NG
OK - Replace the generator. Service and Repair . Confirm repair by performing complete
Starting/Charging system test. Refer to diagnostic station instruction manual.
NG - Check harness between the battery and the generator for poor continuity.