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IQ PLUS CHARGER (ONBOARD)
Test Procedures
Page 9-12
2008-2011 Domestic Battery Charger Maintenance and Service Manual
9
TEST PROCEDURE 3 – AC POWER AND CONTINUITY CHECK OF AC CIRCUIT
See General Warning, Section 1, Page 1-1.
1. Disconnect the AC power supply cord from the wall outlet.
2. Check the AC circuit breaker on the front of the charger and reset it if necessary.
3. Check the AC line fuse or circuit breaker in the storage facility.
4. With a multimeter set to 500 volts AC, check incoming AC voltage. Insert multimeter test probes into AC
wall outlet; voltage should be between 105 and 128 volts. If proper voltage is not present, have building
wiring checked by a licensed electrical contractor.
5. Check continuity of the AC circuit.
5.1. Remove the battery charger from the vehicle.
See Onboard Charger Removal on page 9-31.
5.2. Remove the charger cover.
5.3. Bypass the relay.
5.3.1. To bypass the relay, remove the black wire (3) from the AC circuit breaker and disconnect
the black wire (4) from the relay. Connect the black wire (4) to the AC circuit breaker
(Figure 9-11, Page 9-16)
.
5.4. With relay bypassed, there should be continuity across the AC cord blades
(Figure 9-8,
Page 9-13)
.
6. If the circuit is not complete, check the wiring of the AC cord, AC cord reel, transformer primary coil wires,
and internal AC circuit breaker
(Figure 9-11, Page 9-16)
.
7. If the charger is wired correctly, check the continuity of the AC cord, AC cord reel, transformer primary
coil, and the internal AC circuit breaker individually.
See Test Procedure 8 – Continuity on page 9-17.
8. When troubleshooting and repairs are complete, properly connect the relay wiring.
See following
WARNING.
ý
WARNING
• The relay wiring must be properly connected prior to placing the charger back into normal
service. Failure to properly connect the relay wiring could result in property damage, severe
personal injury, or death.
Figure 9-7 Control Board
BLUE WIRE
TO DC CORD
BLUE WIRE TO RELAY
BLACK WIRE TO RELAY
BLACK WIRE TO
AC CIRCUIT
BREAKER
TAN WIRE TO TRANSFORMER
PRIMARY COIL
WHITE WIRE TO AC CORD
RED WIRE TO RELAY
RED WIRE
TO HEATSINK
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