Honda 2004 Odyssey Service Manual page 1547

Heating/Air Conditioning
DTC Troubleshooting
DTC 1: A Problem in the Air Mix Control
Motor Circuit
1. Disconnect the air mix control motor 7P connector.
2. Test the air mix control motor (see page 21-37).
Is the air mix control motor OK ?
YES Go to step 3.
NO Go to step 8.
3. Disconnect the heater control panel 22P connector.
4. Check for continuity between body ground and the
heater control panel 22P connector terminals
No. 12, 13, 16, 17 and 19 individually.
HEATER CONTROL PANEL 22P CONNECTOR
RED/YEL
RED/WHT
Wire side of female terminals
Is there continuity?
YES Repair any short to body ground in the
wire(s) between the heater control panel and the air
mix control motor.
NO Go to step 5.
21-16
GRY
YEL/GRN PNK/BLK
5. Turn the ignition switch ON (II), and check the same
terminals for voltage.
HEATER CONTROL PANEL 22P CONNECTOR
RED/YEL
RED/WHT GRY
Wire side of female terminals
Is there any voltage?
YES Repair any short to power in the wire(s)
between the heater control panel and the air mix
control motor. This short may also damage the
heater control panel. Repair the short to power
before replacing the heater control panel.
NO Go to step 6.
YEL/GRN
PNK/BLK