Honda 2004 Odyssey Service Manual page 1627

Climate Control
DTC Troubleshooting (cont'd)
DTC indicator L: An Open or Short in the
Mode Control Motor Circuit
1. Disconnect the mode control motor 7P connector.
2. Disconnect climate control unit connector B (20P).
3. Check for continuity between body ground and
climate control unit connector B (20P) terminals
No. 5, 6, 11, 17, 18, 19 and 20 individually.
CLIMATE CONTROL UNIT CONNECTOR B (20P)
BLU/BLK
YEL/
BLU/GRN
GRN
LT GRN/BLK
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 4.
21-96
BLU/WHT
GRN/
BLK
GRN/YEL
4. Turn the ignition switch ON (II), and check the same
terminals for voltage.
CLIMATE CONTROL UNIT CONNECTOR B (20P)
BLU/BLK
YEL/ BLU/GRN
GRN
LT GRN/BLK
Wire side of female terminals
Is there any voltage?
YES Repair any short to power in the wire(s)
between the climate control unit and the mode
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 5.
BLU/WHT
GRN/
BLK
GRN/YEL