Honda 2004 Odyssey Service Manual page 1598

General Troubleshooting Information
How to Retrieve a DTC
The climate control unit has a self-diagnosis function.
To run the self-diagnosis function, do the following:
Without Navigation System
AUTO BUTTON OFF BUTTON
With Navigation System
AUTO BUTTON
OFF BUTTON
1. Turn the Ignition switch ON (II).
2. Press the AUTO button and then press the OFF
button. Continue to hold both buttons down for 1
minute.
TEMPERATURE INDICATOR
TEMPERATURE INDICATOR
If there is any abnormality in the system, the
temperature Indicator will light up the segment (A
through N) corresponding to the error. The temperature
indicator will then alternate every second between
displaying ''88'' (all segments lit) and the error code
segment (A through N).
NOTE: The system will only display the DTC when the
AUTO and OFF buttons are pressed. If you release the
buttons, the display will go blank. To return the display,
simply press the AUTO then the OFF buttons again.
To determine the meaning of the DTC, refer to the DTC
Troubleshooting Index. If there is no abnormality, the
segment will not light up.
TEMPERATURE INDICATOR
C E
A
1
L*
G
K I
1: Without Navigation System
2: With Navigation System
Cancelling the Self-diagnosis Function
3. Turn the ignition switch OFF to cancel the self-
diagnosis function. After completing repair work,
run the self-diagnosis function again to make sure
that there are no other malfunctions.
B D
F
1
M*
J
H N
2
L*
(cont'd)
21-67