Honda 2004 Odyssey Service Manual page 1553

Heating/Air Conditioning
Recirculation Control Motor Circuit
Troubleshooting (cont'd)
10. Turn the ignition switch off.
11. Check for continuity between the following
terminals of the heater control panel 22P connector
and the recirculation control motor 7P connector.
22P: 7P:
No. 1 No. 7
No. 11 No. 5
HEATER CONTROL PANEL 22P CONNECTOR
Wire side of female terminals
GRN/WHT
GRN/RED
GRN/RED
RECIRCULATION CONTROL MOTOR 7P CONNECTOR
Wire side of female terminals
Is there continuity?
YES Check for loose wires or poor connections at
the heater control panel 22P connector and at
recirculation control motor 7P connector. If the
connections are good, substitute a known-good
heater control panel, and recheck. If the symptom/
indication goes away, replace the original heater
control panel.
NO Repair any open in the wire(s) between the
heater control panel and the recirculation control
motor.
12. Remove the recirculation control motor (see page
21-39).
13. Check the recirculation control linkage and doors
for smooth movement.
Do the recirculation control linkage and doors
move smoothly?
YES Replace the recirculation control motor.
NO Repair the recirculation control linkage or
doors.
21-22 21-22
GRN/WHT
Blower Motor Circuit
Troubleshooting
1. Turn the ignition switch ON (II) and the heater fan
switch ON.
Does the blower run?
YES Go to step 2.
NO Go to step 16.
2. Turn the heater fan switch OFF.
3. Make sure the ignition switch is ON (II).
Does the blower motor run?
YES Go to step 4.
NO Go to step 9.
4. Turn the ignition switch OFF.
5. Disconnect the blower motor 2P connector.
6. Disconnect the blower resistor 5P connector.
7. Disconnect the heater fan switch 7P connector.
8. Check for continuity between the No. 3, 4, 5 and 6
terminals of the heater fan switch 7P connector and
body ground individually.
HEATER FAN SWITCH 7P CONNECTOR
BLU
BLU/YEL
Wire side of female terminals
Is there continuity?
YES Repair any short to body ground in the
wire(s) between the blower motor, the blower
resistor and the heater fan switch.
NO Replace the heater fan switch.
BLU/RED
BLU/BLK