Honda 2004 Odyssey Service Manual page 1618

8. Disconnect climate control unit connector B (26P).
9. Check for continuity between the No. 19 terminal of
climate control unit connector B (26P) and the No. 1
terminal of the sunlight sensor 2P connector.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
Wire side of female terminals
WHT/RED
WHT/RED
SUNLIGHT SENSOR 2P CONNECTOR
Wire side of female terminals
Is there continuity?
YES Go to step 10.
NO Repair open in the wire between the climate
control unit and the sunlight sensor.
10. Check for continuity between the No. 1 terminal of
climate control unit connector B (26P) and the No. 2
terminal of the sunlight sensor 2P connector.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
Wire side of female terminals
YEL/GRN
YEL/GRN
SUNLIGHT SENSOR 2P CONNECTOR
Wire side of female terminals
Is there continuity?
YES Go to step 11.
NO Repair open in the wire between the climate
control unit and the outside air temperature
sensor.
11. Reconnect the sunlight sensor 2P connector.
12. Reconnect climate control unit connector B (26P).
13. Test the sunlight sensor (see page 21-119).
Is the sunlight sensor OK ?
YES Check for loose wires or poor connections at
climate control unit connector B (26P) and at the
sunlight sensor 2P 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 Replace the sunlight sensor.
21-87