Honda ACCORD HYBRID 2005 Service Manual page 1918

Gauges
O u t s i d e A i r T e m p e r a t u r e I n d i c a t o r T e s t
NOTE: To test the outside air temperature sensor
(see page 21-76).
The outside air temperature sensor for the indicator is
m o u n t e d behind the front bumper. Because of this, the
temperature reading can be affected by heat reflection
f r o m the road, engine heat, and even exhaust f r o m the
s u r r o u n d i n g traffic. To prevent bogus readings, the
display uses a specific logic as s h o w n .
The outside air is w a r m e r than w h e n the ignition switch
was turned OFF (ACC or LOCK) position:
• If the ignition switch was t u r n e d OFF for less than
2 hours, the displayed t e m p e r a t u r e w h e n you turn the
ignition switch to ON (II) stays at the ignition switch-
off temperature until the vehicle has gone faster than
18 m p h (11 km/h) for 30 seconds, then rises 1 degree
every minute until the outside air temperature is
reached.
• If the ignition switch was t u r n e d OFF for 2 hours or
m o r e , the displayed temperature w h e n you t u r n the
ignition switch to ON (II), the display i m m e d i a t e l y
updates to the measured outside air temperature.
The outside air is cooler than w h e n the ignition switch
was turned OFF (ACC or LOCK) position:
• If the ignition switch was t u r n e d OFF for less than
2 hours, the displayed temperature w h e n you turn the
ignition switch to ON (II) is the ignition switch-off
temperature.
The displayed temperature then drops 1 degree every
2 seconds until the reading matches the o u t s i d e a i r
temperature.
• If the ignition switch was t u r n d e d OFF for 2 hours or
more, the displayed temperature is the measured
outside air temperature.
Forced Display
You can also force the indicator to display the
measured temperature.
1. Turn the ignition switch OFF.
2. Remove the No. 7 (10 A) fuse f r o m the under-dash
fuse/relay box for 60 seconds, then reinstall it.
3. Turn the ignition switch ON (II).
Troubleshooting
If the indicator displays " " for more than 2
seconds after selecting the outside air t e m p e r a t u r e
display m o d e , check the climate control system for
DTCs, or an open in the LT BLU w i r e between the
under-dash fuse/relay box and the climate control unit.
0 0 0
u u u
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