Honda 2004 Odyssey Service Manual page 1640

12. Disconnect climate control unit connector B (26P).
13. Check for continuity between the No. 23 and No. 24
terminals of climate control unit connector B (26P)
and body ground individually.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
Wire side of female terminals
Is there continuity?
YES Repair any short to body ground in the wire
(s) between the climate control unit and the
recirculation control motor.
NO Go to step 14.
14. Turn the ignition switch ON (II), and check the same
terminals for voltage.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
Wire side of female terminals
Is there any voltage?
YES Repair any short to power in the wire
between the climate control unit and the
recirculation control motor. This short may also
damage the climate control unit. Repair the short to
power before replacing the climate control unit.
NO Go to step 15.
15. Turn the ignition switch OFF.
GRN/RED
GRN/WHT
GRN/RED GRN/WHT
16. Check for continuity between the following
terminals of climate control unit connector B (26P)
and the recirculation control motor 7P connector.
26P: 7P:
No. 23 No. 5
No. 24 No. 7
CLIMATE CONTROL UNIT CONNECTOR B (26P)
Wire side of female terminals
GRN/RED
RECIRCULATION CONTROL MOTOR
7P CONNECTOR
Wire side of female terminals
Is there continuity?
YES Check for loose wires or poor connections at
climate control unit connector B (26P) and at the
recirculation control motor 7P connector. If the
connections are good, substitute a known-good
climate control unit, and recheck. If the symptom/
indication goes away, replace the original climate
control unit.
NO Repair any open in the wire(s) between the
climate control unit and the recirculation control
motor.
17. Remove the recirculation contol motor (see page
21-39).
18. 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.
GRN/WHT
GRN/RED
GRN/WHT
21-109