Honda ACCORD HYBRID 2005 Service Manual page 2104

Navigation System
S y m p t o m T r o u b l e s h o o t i n g ( c o n t ' d )
Trip computer-no fuel information
NOTE:
• A l w a y s check the connectors f o r poor connections or
loose terminals.
• Before troubleshooting, get the navigation system
anti-theft codes.
• After troubleshooting, enter the navigation system
anti-theft codes.
• If the Previous button on the Trip Computer screen is
not active, make sure to answer OK to the Disclaimer
screen.
• Verify that the correct navigation unit is installed for
this m o d e l . Go into the Diagnostic M e n u and use
" V e r s i o n " (see page 23-122).
Do the " N a v i System Link" test (see page 23-109) t o
check the c o m m u n i c a t i o n line between the PCM (Fl-
ECU) and the navigation unit.
1. Go into the Diagnostic M e n u and use " T r i p
I n f o r m a t i o n " test under Functional Setup (see page
23-118) w i t h the engine r u n n i n g .
Are the values greater than zero?
YES—The system is OK.m
NO—Check the CAN system for DTCs. If OK,
replace the navigation unit (see page 23-145). •
Navigation cannot control A / C
NOTE:
• Always check the connectors for poor connections or
loose terminals.
• Before t r o u b l e s h o o t i n g , get the navigation system
anti-theft codes.
• After t r o u b l e s h o o t i n g , enter the navigation system
anti-theft codes.
• Verify that the correct navigation unit is installed for
this model. Go into the Diagnostic Menu and use
" V e r s i o n " (see page 23-122).
1. Go into the Diagnostic M e n u and use the " N a v i
System Link" test (see page 23-109).
Is "Air-con" icon red?
YES—Do the climate control system
troubleshooting (see page 2 1 - 1 0 ) . •
NO—Check for an open or short to ground between
display unit connector A (5P) terminals No. 2, No. 3,
No. 4 and climate control unit connector A (16P)
terminals No. 16, No. 15, No. 8. If OK, check the
climate control system for normal operation. If the
climate control system w o r k s properly, substitute a
k n o w n - g o o d display unit (see page 23-71) and
recheck. •
23-138