Honda Odyssey 2004. Manual — part 413
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03
04
05
YES
NO
YES
NO
21-128
Rear Heater-A/C
Rear Blower Motor Low Speed Circuit Troubleshooting (cont’d)
REAR BLOWER MOTOR LOW RELAY 5P SOCKET
BLK/YEL
REAR HEATER-A/C MAIN SWITCH 10P CONNECTOR
REAR BLOWER MOTOR LOW RELAY 5P SOCKET
WHT/RED
WHT/RED
REAR HEATER-A/C PASSENGER’S CONTROL PANEL
10P CONNECTOR
REAR BLOWER MOTOR LOW RELAY 5P SOCKET
WHT/RED
WHT/RED
7. Turn the ignition switch ON (II).
8. Measure the voltage between the No. 5 terminal of
the rear blower motor low relay 5P socket and body
ground.
Go to step 9.
Repair open in the wire between the No. 3
fuse in the driver’s under-dash fuse/relay box and
the rear blower motor low relay.
9. Turn the ignition switch OFF.
10. Disconnect the rear heater-A/C main switch 10P
connector and the rear heater-A/C passenger’s
control panel 10P connector.
11. Check for continuity between the No. 3 terminal of
the rear blower motor low relay 5P socket and the
No. 6 terminal of the rear heater-A/C main switch
10P connector, and between the No. 3 terminal of
the rear blower motor low relay 5P socket and the
No. 2 terminal of the rear heater-A/C passenger’s
control panel 10P connector.
Test the rear heater-A/C main switch (see
page 21-140) and the rear heater-A/C passenger’s
control panel (see page 21-141). Replace the switch
as needed.
Repair open in the wire between the rear
blower motor low relay and the rear heater-A/C
main switch, or between the rear blower motor low
relay and the rear heater-A/C passenger’s control
panel.
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is ther e continuity?
03/07/29 10:14:12 61S0X050_210_0129
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*01
01
02
S0X4A12G44200014649FAAT00
YES
NO
YES
NO
YES
NO
YES
NO
21-129
Rear Blower Motor Middle Speed Circuit Troubleshooting
REAR BLOWER RESISTOR
REAR BLOWER MOTOR MIDDLE RELAY 5P SOCKET
GRN/WHT
GRN/WHT
REAR BLOWER RESISTOR 5P CONNECTOR
REAR BLOWER MOTOR MIDDLE RELAY 5P SOCKET
BLK
1. Remove the rear blower unit (see page 21-142).
2. Remove the rear blower motor middle relay, and
test it (see page 22-88).
Go to step 3.
Replace the rear blower motor middle
relay.
3. Disconnect the rear blower resistor.
4. Measure the resistance between the No. 1 and
No. 4 terminals of the rear blower resistor.
Go to step 5.
Replace the rear blower resistor.
5. Check for continuity between the No. 4 terminal of
the rear blower resistor 5P connector and the No. 2
terminal of the rear blower motor middle relay 5P
socket.
Go to step 6.
Repair open in the wire between the rear
blower resistor and the rear blower motor middle
relay.
6. Check for continuity between the No. 1 terminal of
the rear blower motor middle relay 5P socket and
body ground.
Go to step 7.
Check for an open in the wire between the
rear blower motor middle relay and body ground. If
the wire is OK, check for poor ground at G582.
(cont’d)
Wire side of female terminals
Is the r elay OK ?
Is ther e about 1.4
?
Is ther e continuity?
Is ther e continuity?
03/07/29 10:14:13 61S0X050_210_0130
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−
−
−
03
04
05
YES
NO
YES
NO
21-130
Rear Heater-A/C
Rear Blower Motor Middle Speed Circuit Troubleshooting (cont’d)
REAR BLOWER MOTOR MIDDLE RELAY 5P SOCKET
BLK/YEL
REAR HEATER-A/C MAIN SWITCH
10P CONNECTOR
REAR BLOWER MOTOR MIDDLE RELAY 5P SOCKET
RED/BLU
RED/
BLU
REAR HEATER-A/C PASSENGER’S
CONTROL PANEL 10P CONNECTOR
REAR BLOWER MOTOR MIDDLE RELAY 5P SOCKET
RED/BLU
RED/
BLU
7. Turn the ignition switch ON (II).
8. Measure the voltage between the No. 5 terminal of
the rear blower motor middle relay 5P socket and
body ground.
Go to step 9.
Repair open in the wire between the No. 3
fuse in the driver’s under-dash fuse/relay box and
the rear blower motor middle relay.
9. Turn the ignition switch OFF.
10. Disconnect the rear heater-A/C main switch 10P
connector and the rear heater-A/C passenger’s
control panel 10P connector.
11. Check for continuity between the No. 3 terminal of
the rear blower motor middle relay 5P socket and
the No. 3 terminal of the rear heater-A/C main
switch 10P connector, and between the No. 3
terminal of the rear blower motor middle relay 5P
socket and the No. 3 terminal of the rear heater-A/C
passenger’s control panel 10P connector.
Test the rear heater-A/C main switch (see
page 21-140) and the rear heater-A/C passenger’s
control panel (see page 21-141). Replace the switch
as needed.
Repair open in the wire between the rear
blower motor middle relay and the rear heater-A/C
main switch, or between the rear blower motor
middle relay and the rear heater-A/C passenger’s
control panel.
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is ther e continuity?
03/07/29 10:14:14 61S0X050_210_0131
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−
−
−
−
−
−
−
*03
02
01
S0X4A12G44200014644FAAT00
YES
NO
YES
NO
YES
NO
YES
NO
21-131
Rear Blower Motor High Speed Circuit Troubleshooting - Hot and/or Cold
REAR BLOWER RESISTOR
BLU/YEL
REAR BLOWER MOTOR MAIN RELAY
6P CONNECTOR
REAR BLOWER MOTOR MAIN RELAY
6P CONNECTOR
BLK/YEL
1. Remove the rear blower unit (see page 21-142).
2. Remove the rear blower motor main relay, and test
it (see page 22-88).
Go to step 3.
Replace the rear blower motor main relay.
3. Disconnect the rear blower resistor.
4. Measure the resistance between the No. 1 and
No. 2 terminals of the rear blower resistor.
Go to step 5.
Replace the rear blower resistor.
5. Measure the voltage between the No. 1 terminal of
the rear blower motor main relay 6P connector and
body ground.
Go to step 6.
Repair open in the wire between the rear
blower motor and the rear blower motor main
relay.
6. Turn the ignition switch ON (II).
7. Measure the voltage between the No. 6 terminal of
the rear blower motor main relay 6P connector and
body ground.
Go to step 8.
Repair open in the wire between the No. 3
fuse in the driver’s under-dash fuse/relay box and
the rear blower motor main relay.
8. Turn the ignition switch OFF.
(cont’d)
Wire side of female terminals
Wire side of female terminals
Is the r elay OK ?
Is ther e about 0.6
?
Is ther e batter y voltage?
Is ther e batter y voltage?
03/07/29 10:14:14 61S0X050_210_0132
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