Troubleshooting - Kia 2004.5 Spectra Service Technical Training

2004.5 Spectra Technology
SYSTEM DIAGNOSTICS &

TROUBLESHOOTING

Phenomenon
System check sound
ABS operation sound
ABS operation (Long braking distance)
Pedal kick back
Diagnosis detection conditions can vary depending on the diagnosis code. When checking
the trouble symptom after the diagnosis code has been erased, ensure that the requirement
listed in "Comment" are met.
FAILSAFE FUNCTION
Brakes
The following are normal ABS operations and checks.
Explanation
When starting the engine, a thudding sound
can sometimes be heard coming from inside
the engine compartment. This is because the
system operation check is being performed.
1. The sound of the motor inside the ABS
hydraulic unit operation (whine).
2. Sound is generated along with vibration of
the brake pedal (scraping).
3. When ABS operates, sound is generated
from the vehicle chassis due to brake
application and release
(Thump: suspension; squeak: tires)
For road surfaces such as snow-covered and
gravel roads, the braking distance for vehicles
with ABS can sometimes be longer than that
for other vehicles. Accordingly, advise the
customer to drive safely on such roads by
lowering the vehicle speed.
Pedal kick back is normal operation.
N N o o t t e e : : T T h h i i s s t t a a b b l l e e l l i i s s t t s s s s y y m m p p t t o o m m s s s s u u p p p p o o r r t t e e d d b b y y
c c o o m m m m e e n n t t s s t t o o h h e e l l p p t t e e c c h h n n i i c c i i a a n n s s d d i i a a g g n n o o s s e e a a n n d d
p p r r o o p p e e r r l l y y r r e e s s o o l l v v e e t t h h e e s s e e p p r r o o b b l l e e m m s s . . B B e e s s u u r r e e t t o o
r r e e v v i i e e w w c c o o m m m m e e n n t t s s l l i i s s t t e e d d o o n n K K S S I I S S u u n n d d e e r r
d d i i a a g g n n o o s s t t i i c c s s b b y y s s y y m m p p t t o o m m s s . .
1. Only the ABS function is inhibited:
• The ABS warning lamp is activated and EBD
warning lamp is not activated
2. Motor error during the ABS control cycle:
• Inhibit the ABS control of front wheels
• Allow ABS control of the rear wheels
• ABS warning lamp is switched ON at the end of
ABS control.
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