Honda 2004 Odyssey Service Manual page 1623

Climate Control
DTC Troubleshooting (cont'd)
5. Disconnect climate control unit connector B (26P).
6. Check for continuity between the No. 20 terminal of
climate control unit connector B (26P) and body
ground.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
Wire side of female terminals
Is there continuity?
YES Repair short to body ground in the wire
between the climate control unit and the
evaporator temperature sensor.
NO Substitute a known-good climate control unit,
and recheck. If the symptom/indication goes away,
replace the original climate control unit.
21-92 21-92
BRN
DTC indicator I: An Open in the Air Mix
Control Motor Circuit
1. Disconnect the air mix control motor 7P connector.
Does the vehicle have a Navigation System?
YES Go to step 4.
NO Go to step 2.
2. Disconnect climate control unit connector B (20P).
3. Check for continuity between following terminals
of climate control unit connector B (20P) and the air
mix control motor 7P connector.
20P: 7P:
No. 1 No. 3
No. 7 No. 2
No. 9 No. 1
No. 11 No. 5
No. 13 No. 7
CLIMATE CONTROL UNIT CONNECTOR B (20P)
Wire side of female terminals
PNK/BLK
YEL/
GRY
GRN
PNK/BLK
RED/WHT RED/YEL
AIR MIX 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 (20P) and at the air
mix control motor 7P connector. If the connections
are good, substitute a known-good air mix control
motor, and recheck. If the symptom/indication goes
away, replace the original air mix control motor. If
the symptom/indication continues, 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 air mix control
motor.
RED/WHT
RED/YEL
YEL/
GRN
GRY