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S y m p t o m Troubleshooting Index
NOTE:
• The n u m b e r s in the table s h o w the troubleshooting sequence.
• Before troubleshooting.
- check the No. 9 (7.5A) and No. 6 (15A) fuses in the driver's under-dash fuse/relay box, and the No. 47 (20A) fuse in
the under-hood fuse/relay box.
- check that the horn sounds.
- check the tachometer to see if it works properly.
S y m p t o m
Diagnostic procedure
Also check for
Cruise control cannot be
set
1.
Check main switch (see page 4-48)
2.
Check SET/RESUME/CANCEL switch (see page 4-48)
3.
Check brake pedal position switch and m o u n t i n g (see page
4-49)
4.
Check clutch pedal position switch and m o u n t i n g (M/T) (see
page 4-49)
5.
Check transmission range switch (A/T) (see page 14-138)
6.
Check control unit (see page 4-46)
• Poor ground:
G302, G401, or
G501
• Open circuit,
loose or
disconnected
terminals:
LTGRN,
LTGRN/RED,
GRY, L T B L U ,
BLU/WHT
Cruise control can be set
but indicator light does
not go on
Check control unit (see page 4-46)
• Poor ground:
G302, G401,or
G501
• Open circuit,
loose or
disconnected
terminals:
YEL, BLU/BLK
Cruise speed is
noticeably higher or
lower than what was set
1.
Check vehicle speed sensor (VSS) (see page 22-69)
2.
Check actuator and vent line for the actuator (see page 4-51)
3.
Check control unit (see page 4-46)
Excessive overshooting
or undershooting w h e n
trying to set speed
1.
Check actuator and vent line for the actuator (see page 4-51)
2.
Check vehicle speed sensor (VSS) (see page 22-69)
3.
Check control unit (see page 4-46)
Speed fluctuation on a
flat road w i t h cruise
control set
1.
Check vehicle speed sensor (VSS) (see page 22-69)
2.
Check actuator (see page 4-51)
3.
Check control unit (see page 4-46)
Vehicle does not
decelerate or accelerate
accordingly w h e n SET/
RESUME/CANCEL button
is pushed
1.
Check SET/RESUME/CANCEL switch (see page 4-48)
2.
Check control unit (see page 4-46)
Open circuit, loose
or disconnected
terminals:
LT GRN/RED,
LT GRN/BLK
Cruise control does not
cancel w h e n clutch pedal
is pushed (M/T)
1.
Check clutch pedal position switch and mounting (see page
4-49)
2.
Check control unit (see page 4-46)
Short to g r o u n d in
the LT BLU w i r e
Cruise control does not
cancel w h e n shift lever is
moved to M position
(A/T)
1.
Check transmission range switch (see page 14-138)
2.
Check control unit (see page 4-46)
Short to ground in
the LTBLU w i r e
Set speed is not
cancelled w h e n brake
pedal is pushed
1.
Check brake pedal position switch and m o u n t i n g (see page
4-49)
2.
Check control unit (see page 4-46)
Open circuit, loose
or disconnected
terminals:
WHT/BLK
(cont'd)
4-43
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Table of Contents
Troubleshooting
