Honda ACCORD HYBRID 2005 Service Manual page 71

S y m p t o m T r o u b l e s h o o t i n g I n d e x
Symptom Diagnostic procedure Also check for
Cruise control cannot be
set
1. Check for PGM-FI and body DTCs.
2. Check the No. 13 (20 A) fuse in the under-hood fuse/
relay box.
3. Do the cruise control input test (see page 4-30).
4. Do the cruise control c o m b i n a t i o n switch test (see page
4-32).
Cruise control can be s e t
but the CRUISE MAIN
indicator does not come
on
1. Check for PGM-FI and body DTCs.
2. Do the gauge control module self-diagnostic function
procedure (see page 22-226).
3. Do the cruise control input test (see page 4-30).
Test the cruise control main switch signal input.
Faulty gauge control
module
Cruise control can be set,
but the CRUISE
CONTROL indicator does
not come on
1. Check for PGM-FI and body DTCs.
2. Do the gauge control m o d u l e self-diagnostic function
procedure (see page 22-226).
3. Do the cruise control input test (see page 4-30).
Test the cruise control indicator signal input.
Faulty gauge control
module
Vehicle does not
decelerate or accelerate
accordingly w h e n the set/
decel or resume/accel
switch is pressed
1. Check for PGM-FI and body DTCs.
2. Do the cruise control input test (see page 4-30).
Test the cruise control set/decel, resume/accel switch
signal input.
3. Do the cruise control c o m b i n a t i o n switch test (see page
4-32).
Open circuit, loose or
disconnected
terminals:
G R Y o r L T B L U w i r e
Set speed does not
cancel w h e n the brake
pedal is pressed
1. Check for PGM-FI and body DTCs.
2. Check the No. 18 (15 A) fuse in the under-dash fuse/
relay box.
3. Do the cruise control input test (see page 4-30).
Test the brake pedal position switch signal input.
4. Do the idle stop switch test (see page 11-334).
5. Do the brake pedal position switch test (see page
22-169).
• Short to p o w e r on
the BRN/BLK w i r e
• Open c i r c u i t loose or
disconnected
terminals:
L T G R N wire
• Faulty idle stop
switch
• Faulty brake pedal
position switch
Set speed does not
cancel w h e n the cruise
control m a i n switch is
turned off
1. Check for PGM-FI and body DTCs.
2. Do the cruise control input test (see page 4-30).
Test the cruise control main switch signal input.
3. Do the cruise control c o m b i n a t i o n switch test (see page
4-32).
Short to ground in the
L T G R N wire
Set speed does not
cancel w h e n the cancel
switch is pressed
1. Check for PGM-FI and body DTCs.
2. Check the No. 13 (20 A) fuse in the under-hood fuse/
relay box.
3. Do the cruise control input test (see page 4-30).
Test the cruise control cancel switch signal input.
4. Do the cruise control c o m b i n a t i o n switch test (see page
4-32).
Open c i r c u i t loose or
disconnected
terminals: GRN/YEL,
GRY, or L T B L U w i r e
(cont'd)
4-27