10.90 10.90 Electrical Electrical systemsystem
Subinfo: Motor temp sens lost. w32, Motor temp sens shorted. w64.Subinfo: Motor temp sens lost. w32, Motor temp sens shorted. w64.
10.10.16.516.5 E10E102, E102, E103, E103, E107 Serv7 Servo stopo stoppedped/Se/Servo abrvo abnornormalmal
-EPS 2001-EPS 2001
E102, E107 Subinfo: Internal OveE102, E107 Subinfo: Internal Overcurrentrcurrent
Replace the Replace the AATC.TC.
Check that the sensor is OK and notCheck that the sensor is OK and not
short circuited. Check the cableshort circuited. Check the cable
connection between the motorconnection between the motor
temperature sensor and the regulator.temperature sensor and the regulator.
The sensor is measured in the 8 wayThe sensor is measured in the 8 way
connector on the motor after the truckconnector on the motor after the truck
side cables have been disconnected. Ifside cables have been disconnected. If
the sensor is OK you should receive athe sensor is OK you should receive a
vavalulue of e of ababouout 5t 500 00 at at roroomom
temperature, which is measured acrosstemperature, which is measured across
pins 7 and 8 on the cpins 7 and 8 on the connector. If theonnector. If the
temperature is higher the resistancetemperature is higher the resistance
will increase.will increase.
If the sensor is defective, change theIf the sensor is defective, change the
motor.motor.
If there is a cable fault (see theIf there is a cable fault (see the
explanation to the right), rectify orexplanation to the right), rectify or
change the cable.change the cable.
In order to check the cableIn order to check the cable
connections, loosen the 8 wayconnections, loosen the 8 way
contactor on the motor and the 13 waycontactor on the motor and the 13 way
contactor on the related regulator.contactor on the related regulator.
Measure across pins 7 and 8 on the 8Measure across pins 7 and 8 on the 8
way contactor, the resistance should beway contactor, the resistance should be
infinite. Measure that the cables areinfinite. Measure that the cables are
intact between pin 7 on the motorintact between pin 7 on the motor
contactor and regulator contactor, andcontactor and regulator contactor, and
pin 8 on the motor contactor and pin 4pin 8 on the motor contactor and pin 4
on the regulator contactor, theon the regulator contactor, the
resresististanance shce shouould bld be wele well unl undeder 0.r 0.55 ..
CChhaanngge e tthhe e rreegguullaattoorr.. TThhe e rreegguullaattoorr''s s tteemmppeerraattuurree
measurement can be malfunctioning.measurement can be malfunctioning.
RReeppllaacce e EEPPS S uunniitt TThhiis s eerrrroor r aarriissees s wwhheen n tthhe e llooaadd
impedance which the EPS unit'simpedance which the EPS unit's
power stage measures, is too lowpower stage measures, is too low
for the EPS 2001 to be able tofor the EPS 2001 to be able to
correctly regulate the motorcorrectly regulate the motor
current.current.
ΩΩ
ΩΩ
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