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EXPORT POWERDRIVE BATTERY CHARGER (EXTERNAL)
Test Procedures
2008 Export Battery Charger Maintenance and Service Manual
Page 3-29
3
Voltage Suppressor – Failed Closed
1. Disconnect AC cord from the wall outlet and DC plug from the vehicle receptacle.
2. Remove the charger cover.
3. Using a multimeter set to the diode test function (
ç
), place the black (–) probe of the multimeter on the
sense lead pin (short pin) of the DC plug. Place the red (+) probe on the positive (+) pin of the DC plug.
The multimeter should indicate no tone. If a tone is emitted (indicating a closed circuit) then the voltage
suppressor has failed and should be replaced.
See following NOTE.
NOTE: All vehicles except Precedent:
Repeated failure of sense lead fuses is a symptom of a voltage
supressor that has failed in a closed condition.
Precedent vehicles only:
Failure of the onboard computer due to a blown internal sense lead
fuse is a symptom of a voltage supressor that has failed in a closed condition.
Relay
1. Disconnect AC cord from the wall outlet and DC plug from the vehicle receptacle.
2. Remove the charger cover.
3. Remove the brown wire from terminal 6 of the relay and black wire from terminal 9 of the relay
(Figure 3-11, Page 3-13)
. Place continuity tester leads on terminals 6 and 9 of the relay. The tester
should indicate no continuity. If tester indicates continuity, the relay contacts have failed closed and the
relay must be replaced.
4. Remove the blue wire from terminal 4 of the relay and black wire from terminal 7 of the relay
(Figure 3-11, Page 3-13)
. Place continuity tester leads on terminals 4 and 7 of the relay. The tester
should indicate no continuity. If tester indicates continuity, the relay contacts have failed closed and the
relay must be replaced.
5. With batteries connected, insert the DC plug into a receptacle. The tester should indicate continuity on
terminals 6 and 9 and continuity on relay terminals 4 and 7. If tester does not indicate continuity on both
sets of contacts, the relay must be replaced.
Ammeter
1. Disconnect AC cord from the wall outlet and DC plug from the vehicle receptacle.
2. Remove the charger cover.
3. Disconnect the black wire from the left ammeter post (as viewed from inside the charger).
4. Place the continuity tester clip on one of the ammeter posts.
5. Place the continuity test probe on the other ammeter post. The tester should indicate continuity. If the
tester does not indicate continuity, replace the ammeter.
AC Circuit Breaker
1. Disconnect AC cord from the wall outlet and DC plug from the vehicle receptacle.
2. Remove the charger cover.
3. Disconnect the wires from the AC circuit breaker.
4. Place the continuity test probes on the two terminals of the AC circuit breaker. The tester should indicate
continuity. If the tester does not indicate continuity, replace the AC circuit breaker.