Honda 2004 Odyssey Service Manual page 1628

5. Turn the ignition switch OFF, and check for
continuity between following terminals of climate
control unit connector B (20P) and the mode control
motor 7P connector.
20P: 7P:
No. 5 No. 1
No. 6 No. 2
No. 11 No. 7
No. 17 No. 3
No. 18 No. 4
No. 19 No. 5
No. 20 No. 6
CLIMATE CONTROL UNIT CONNECTOR B (20P)
Wire side of female terminals
BLU/BLK
YEL/GRN
BLU/GRN
LT GRN/BLK
LT GRN/
BLK
BLU/GRN
BLU/WHT
BLU/BLK
MODE 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
mode control motor 7P connector. If the
connections are good, substitute a known-good
mode control motor, and recheck. If the symptom/
indication goes away, replace the original mode
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 mode control motor.
BLU/WHT
GRN/
BLK
GRN/YEL
GRN/YEL
GRN/BLK
YEL/GRN
DTC indicator L: A Problem in the Mode
Control Motor Circuit
1. Disconnect the mode control motor 7P connector.
2. Test the mode control motor (see page 21-38).
Is the mode control motor OK ?
YES Go to step 5.
NO Go to step 3.
3. Remove the mode control motor (see page 21-38).
4. Check the mode control linkage and doors for
smooth movement.
Do the mode control linkage and doors move
smoothly?
YES Replace the mode control motor.
NO Repair the mode control linkage or doors.
5. Disconnect climate control unit connector B (26P).
6. Check for continuity between body ground and
climate control unit connector B (26P) terminals
No. 1, 5, 6, 7, 8, 10 and 11 individually.
CLIMATE CONTROL UNIT CONNECTOR B (26P)
GRN/YEL
GRN/BLK
YEL/GRN
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
mode control motor.
NO Go to step 7.
LT GRN/BLK
BLU/GRN
BLU/WHT
BLU/BLK
(cont'd)
21-97 21-97