DAF CF65, CF75, CF85 Series . Manual - part 59

 

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DAF CF65, CF75, CF85 Series . Manual - part 59

 

 

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1-5

ZF intarder EST42 fault codes

ZF INTARDER EST42

DAVIE XD diagnostics manual 

15

46-15 

No CAN communication possible between any 

vehicle systems due to problems with the V-CAN:

-

interruption on pin 49 or 22 or 

-

defective CAN terminating resistance

-

Normal braking effect of the intarder if the 

steering column switch is in position 1. 

-

Reduced braking effect of the intarder if the 

steering column switch is in position 2 or 3. 

(Current through proportional valve is 

restricted to 250 mA max.)

-

No speed indication on DIP if V-constant 

function is activated

-

No V-constant function possible

47-19 

Incorrect or missing engine speed signal via 

message on CAN network due to:

-

interruption on pin 22

-

short circuit to earth on pin 49

-

short circuit to supply on pin 22 and/or 49

-

defective CAN terminating resistance

-

incorrect message from UPEC unit

-

Maximum braking effect of intarder 

restricted to 350 kW

-

AS Tronic gearbox does not shift down 

automatically when the intarder is activated. 

48-19 

Incorrect or missing vehicle speed signal via 

message on CAN network due to:

-

interruption on pin 22

-

short circuit to earth on pin 49

-

short circuit to supply on pin 22 and/or 49

-

defective CAN terminating resistance

-

incorrect message from MTCO unit

-

Normal braking effect of the intarder if the 

steering column switch is in position 1. 

-

Reduced braking effect of the intarder if the 

steering column switch is in position 2 or 3. 

(Current through proportional valve is 

restricted to 250 mA max.)

-

No speed indication on DIP if V-constant 

function is activated

-

No V-constant function possible

-

Intarder does not function during third brake 

integration braking

49-19 

Incorrect or missing cruise control speed signal 

via message on CAN network due to: 

-

interruption on pin 22

-

short circuit to earth on pin 49

-

short circuit to supply on pin 22 and/or 49

-

defective CAN terminating resistance

-

incorrect message from UPEC unit

-

V-constant function not available

51-19 

Incorrect or missing current intarder braking 

torque signal via message on CAN network due 

to:

-

interruption on pin 22

-

short circuit to earth on pin 49

-

short circuit to supply on pin 22 and/or 49

-

defective CAN terminating resistance

-

incorrect message from UPEC unit

-

If the engine brake is switched on by foot 

while the V-constant function is activated, 

the intarder will not be automatically set to 

the last selected current braking torque once 

the engine brake is switched off. 

64-19 

Incorrect or missing CAN extension box signal via 

message on CAN network due to: 

-

interruption on pin 22

-

short circuit to earth on pin 49

-

short circuit to supply on pin 22 and/or 49

-

defective CAN terminating resistance

-

incorrect message from CAN extension box

-

No intarder braking effect possible via CAN 

extension box

71-13 

No supply voltage before ignition for intarder unit 

(D902) due to:

-

short circuit to earth, interruption on pin 54 or 

55

-

defective fuse E199

-

No noticeable system limitation

Fault code

Fault code description with possible cause

Symptom

ZF INTARDER EST42

1-6

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ZF intarder EST42 fault codes

15

DAVIE XD diagnostics manual

72-16 

Incorrect supply voltage after ignition on pin 31 or 

53 of intarder unit (D902) due to: 

-

overvoltage > 36 V

-

No braking effect of intarder possible in any 

position of steering column switch

-

No "intarder active" function indication on 

DIP when intarder is activated

-

No speed indication on DIP if V-constant 

function is activated

-

No V-constant function possible

72-17 

Incorrect supply voltage after ignition on pin 31 or 

53 of intarder unit (D902) due to:

-

undervoltage < 16 V

-

No braking effect of intarder possible in any 

position of steering column switch

-

No "intarder active" function indication on 

DIP when intarder is activated

-

No speed indication on DIP if V-constant 

function is activated

-

No V-constant function possible

84-15 

Internal fault in intarder unit (D902)

-

No braking effect of intarder possible in any 

position of steering column switch

-

No speed indication on DIP if V-constant 

function is activated

-

No V-constant function possible

Fault code

Fault code description with possible cause

Symptom

©

2-1

System inspection with DAVIE XD

ZF INTARDER EST42

DAVIE XD diagnostics manual 

15

2. SYSTEM INSPECTION WITH DAVIE XD

2.1 GENERAL

If the tyre size is changed or if the vehicle is 

adjusted in such a way that the configuration is 

changed, the electronic unit may have to be re-

programmed.

ZF INTARDER EST42

2-2

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System inspection with DAVIE XD

15

DAVIE XD diagnostics manual

 

 

 

 

 

 

 

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