Symptom:
STEERING ANGLE SENSOR IMPLAUSIBLE WHEEL SPEED
POSSIBLE CAUSES
STEE RING ANGLE SE NSOR INTE RMITTE NT DTC
STEE RING COMPONENT INSP ECTION
STEE RING ANGLE SE NSOR
TE S T ACTION AP PLICAB ILITY
1 NOTE: If a system undervoltage or overvoltage DTC is set along with this
DTC, diagnose the system voltage DTC first.
NOTE: Electromagnetic (radio) interference can cause an intermittent
system malfunction by interrupting communication between the sensor
and the CAB.
NOTE: The Steering Angle Sensor is very sensitive to changes due to
alignment problems. The sensor must be recalculated using the DRBIII" if
alignment has been changed by more than 5 degrees.
Tur n th e ign it ion on .
Wit h th e DRBIII",eraseDTCs.
Test drive th e veh icle.
Using the DRBIII", per for m th e roa d t est pr ocedu r e.
Wit h th e DRBIII",readDTCs.
NOTE: If the ESP lamp remains illuminated after the test has completed, a
fa u l t c o d e w i ll b e s et i n d i c a ti n g t h e c a u s e o f t h e fa i lu r e .
Does t h is DTC r eset ?
All
Ye s → Go To 2
No → Go To 3
2 NOTE: When the vehicle is in a turn, the ESP compares the Steering Angle
Sensor value and the speed of the inner and outer wheels to determine if the
values are plausible.
In spect t h e fr on t en d a n d st eer in g com pon en ts for da ma ge or m isa lign m en t.
In spect t h e st eer ing colu m n a n d St eer in g An gle Sen sor for cor r ect m oun t ing a n d
in st a lla t ion .
In spect t h e t ir es an d wh eels to ma k e su r e t h a t t h ey ar e t h e cor r ect size. All t ir es m u st
be t h e sa m e s ize.
In spect t h e left a nd r igh t Wh eel Speed Sen sor s t o ma ke su r e th ey ar e con n ect ed
corr ect ly, i.e. left ha r n ess con n ect ed t o left sen sor, et c.
Wer e an y pr oblem s fou n d?
All
Ye s → Repa ir or r epla ce com ponen t s as n ecessa r y in a ccor da n ce wit h th e
Ser vice In for m a t ion .
No → Repla ce th e St eer in g An gle Sen sor in accor da n ce wit h t h e Ser vice
In for m a t ion .
72
BRAK ES (CAB)
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