Honda 2004 Odyssey Service Manual page 1633

Climate Control
DTC Troubleshooting (cont'd)
16. Check for continuity between the No. 14 terminal of
climate control unit connector B (26P) and the No. 1
terminal of the power transistor 5P connector.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
Wire side of female terminals
BLU/RED
BLU/RED
POWER TRANSISTOR 5P CONNECTOR
Wire side of female terminals
Is there continuity?
YES Go to step 17.
NO Repair open in the wire between the climate
control unit and the power transistor.
17. Check for continuity between the No. 14 terminal of
climate control unit connector B (26P) and body
ground.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
BLU/RED
Wire side of female terminals
Is there continuity?
YES Repair short to body ground in the wire
between the climate control unit and the power
transistor.
NO Go to step 18.
21-102
18. Reconnect climate control unit connector A (8P) or
B (26P).
19. Test the power transistor (see page 21-120).
Is the power transistor OK ?
YES Check for loose wires or poor connections at
climate control unit connector A (8P) or B (26P) and
at the power transistor 5P 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 power transistor.
20. Turn the ignition switch OFF, and check the No. 56
(40A) fuse in the under-hood fuse/relay box, and
No. 3 (7.5A) fuse in the driver's under-dash
fuse/relay box.
Are the f uses OK ?
YES Go to step 21.
NO Replace the fuse(s), and recheck.
21. Connect the No. 2 terminal of the blower motor 2P
connector to body ground with a jumper wire.
BLOWER MOTOR 2P CONNECTOR
JUMPER
WIRE
Wire side of female terminals
22. Turn the ignition switch ON (II).
Does the blower motor run?
YES Go to step 23.
NO Go to step 38.
BLU/RED