DAF 95XF. Manual — part 194

©

200438

1

Contents

AIRTRONIC (ACH-EA)

DAVIE XD diagnostics manual

9

9 Airtronic (ACH-EA)

CONTENTS

Page

Date

1.

AIRTRONIC (ACH-EA) FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438
1.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.2

Explanatory notes to Airtronic D2/D4 (ACH-EA) fault codes . . . . . . . . . . . 1-2 . . . . . 200438

2.

SYSTEM INSPECTION WITH DAVIE XD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438
2.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

AIRTRONIC (ACH-EA)

2

©

200438

Contents

9

DAVIE XD diagnostics manual

©

200438

1-1

Airtronic (ACH-EA) fault codes

AIRTRONIC (ACH-EA)

DAVIE XD diagnostics manual

9

1. AIRTRONIC (ACH-EA) 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.

AIRTRONIC (ACH-EA)

1-2

©

200438

Airtronic (ACH-EA) fault codes

9

DAVIE XD diagnostics manual

1.2 EXPLANATORY NOTES TO AIRTRONIC D2/D4 (ACH-EA) FAULT CODES

Fault code

Fault code description with possible cause

Symptom

0-0

Internal fault in ECU (D871) due to:
-

defective ECU (D871)

-

insufficient battery voltage

-

Cab heater does not start or fails during
operation

0-1

Internal fault in ECU (D871) due to:
-

defective internal temperature sensor in
ECU (D871)

-

Cab heater does not start or fails during
operation

1-0

Fault when starting ACH-EA, no flame is detected
within the start time due to:
-

no or insufficient supply of fuel

-

insufficient supply of inlet air

-

clogged exhaust

-

defective flame sensor (combisensor F691)

-

defective glow filament (B168)

-

Cab heater does not start or fails during
operation

1-4

Too many failed start attempts
(activation cut-off)

-

Cab heater does not start. The cab heater
shuts down after a maximum of 255 failed
starts and the electronic unit will block.

-

Electronic unit released by erasing faults
using DAVIE XD

2-0

Flame extinguishes repeatedly during operation
due to:
-

no or insufficient supply of fuel

-

insufficient supply of inlet air

-

clogged exhaust

-

defective flame sensor (combisensor F691)

-

Cab heater fails or emits smoke and
supplies insufficient heat

3-1

Voltage (>30 V for at least 20 seconds) on pin 1
of the ECU (D871) is too high due to:
-

excessive alternator/battery voltage

-

Cab heater fails during operation

3-2

Voltage (<20 V for at least 20 seconds) on pin 1
of the ECU (D871) is too low due to:
-

insufficient alternator/battery voltage

-

interruption on pin 1 of the ECU (D871)

-

Cab heater fails during operation

4-0

Flame signalling when switching on due to:
-

defective flame sensor (combisensor F691)

-

defective ECU (D871)

-

Cab heater does not start

5-1

Short circuit to earth or short circuit to supply of
flame sensor (combisensor F691) on pins FF1
and FF2 of the ECU (D871)

-

Cab heater does not start or fails during
operation

5-2

Interruption of flame sensor (combisensor F691)
on pins FF1 and/or FF2 of the ECU (D871)

-

Cab heater does not start or fails during
operation

5-3

The flame sensor signal (combisensor F691) is
out of range

-

Cab heater does not start or fails during
operation

6-1

Short circuit to earth or short circuit to supply of
thermostat unit (E566) temperature sensor on pin
13 and/or 10 of the ECU (D871)

-

Cab heater does not start or fails during
operation

6-2

Interruption of thermostat unit (E566)
temperature sensor on pin 13 and/or 10 of the
ECU (D871)

-

Cab heater does not start or fails during
operation