DAF CF65, CF75, CF85 Series . Instruction - page 62

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1

Contents

ECS-DC3

DAVIE XD diagnostics manual

17

17 ECS-DC3

CONTENTS

Page

Date

1.

1.2

2.

2.2

3.

ECS-DC3

2

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Contents

17

DAVIE XD diagnostics manual

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1-1

ECS-DC3 fault codes

ECS-DC3

DAVIE XD diagnostics manual

17

1. ECS-DC3 FAULT CODES

1.1 INTRODUCTION

If the electronic unit detects a system fault, this

fault is usually stored in the memory of the

electronic unit as a fault code.

Most system faults will also generate a warning.

ECS-DC3

1-2

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ECS-DC3 fault codes

17

DAVIE XD diagnostics manual

1.2 EXPLANATORY NOTES TO ECS-DC3 FAULT CODES

Fault code

Fault code description with possible cause

Symptom

84 - 2

No CAN message from VIC (D900) relating to
vehicle speed signal present due to:
-

faulty vehicle speed sensor (F533)

-

communication problems with VIC (D900)

-

faulty MTCO (B525)

Maximum engine speed is limited to a lower
value.
Vehicle speed limiter, engine speed control and
cruise control cannot be activated.

91 - 3

Voltage on pin B83 of the ECU for accelerator
pedal sensor (F671) is too high due to:
-

faulty accelerator pedal sensor

-

short circuit to supply on pin B83 of the ECU

-

interruption on pin B81 of the ECU

-

short circuit between pin B83 and pin B55 of
the ECU

Indistinct response to accelerator pedal.
When the accelerator pedal is depressed the
idling speed of the engine increases gradually.

91 - 4

Voltage on pin B83 of the ECU for accelerator
pedal sensor (F671) is too low due to:
-

faulty accelerator pedal sensor

-

interruption on pin B55 and/or pin B83 of the
ECU

-

short circuit to earth on pin B55 and/or pin
B83 of the ECU

-

short circuit between pin B55 and pin B81 of
the ECU

-

short circuit between pin B83 and pin B81 of
the ECU

Indistinct response to accelerator pedal.
When the accelerator pedal is depressed the
idling speed of the engine increases gradually.

94 - 0

As a result of the output signal of the fuel pump
control solenoid valve (B334) the fuel rail
pressure sensor (F648) pressure signal is
considerably higher than the calculated fuel rail
pressure due to:
-

faulty/jammed fuel pump control solenoid
valve (B334)

-

faulty rail pressure sensor

Possibly reduced engine output.

94 - 16

Fuel rail pressure sensor (F648) pressure signal
on pin A27 of the ECU is too high for the
calculated engine load due to:
-

faulty/jammed fuel pump control solenoid
valve (B334)

-

faulty rail pressure sensor

Limitation of maximum engine torque and
maximum engine speed. Possibly loud
combustion knocking.

94 - 18

Fuel rail pressure sensor (F648) pressure signal
on pin A27 of the ECU is too low for the calculated
engine load due to:
-

internal/external fuel rail fuel leakage/high-
pressure line/injector lines

-

high resistance in wiring of fuel rail pressure
sensor (F648)

Possibly reduced engine output.

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