DAF LF45 Series Service Manual

©
200508 4-7
Automatic gearbox
DIAGNOSTICS
ΛΦ45/55 series
3
1
Main code Sub-code RECOMMENDED PROCEDURES
Engine and turbine rev test when engaging neutral
53 08
18
28
29
38
39
48
49
58
59
68
69
78
99
Check the following points:
1. engine speed sensor and output shaft speed sensor are connected. The
connectors are undamaged and clean.
2. no interruptions or short circuits between wires or earth in sensor wiring.
3. let the engine idle in neutral while the vehicle is on the brake.
Check the following points:
1. specified dip stick.
2. oil level.
If all these points are in order, contact your Allison dealer.
Transmission ratio test immediately after changing gear
54 01,07
10,12
17,21
23,32
34,43
45,54
56,65
70,71
80,81
83,85
86,92
93,95
96,97
Check the following points:
1. engine speed sensor and output shaft speed sensor are connected. The
connectors are undamaged and clean.
2. no interruptions or short circuits between wires or earth in sensor wiring.
3. let the engine idle in neutral while the vehicle is on the brake.
Check the following points:
1. specified dip stick.
2. oil level.
If all these points are in order, contact your Allison dealer.
Main code Sub-code RECOMMENDED PROCEDURES
Pressure in coupling 3 immediately after changing gear
55 17
87
97
Check the following points:
1. engine speed sensor and output shaft speed sensor are connected. The
connectors are undamaged and clean.
2. no interruptions or short circuits between wires or earth in sensor wiring.
3. let the engine idle in neutral while the vehicle is on the brake.
Check the following points:
1. specified dip stick.
2. oil level.
4. check that there is no interruption or short circuit between the wiring or
earth connection in the coupling 3 pressure switch wiring.
5. Check the following points:
1. main connector is properly connected, clean and undamaged.
2. ECU connector is properly connected, clean and undamaged.
3. rev sensor is properly connected, clean and undamaged.
If all these points are in order, contact your Allison dealer.
DAF LF Gearboxes and Clutch Service Manual

DAF LF45 Series Specifications

General

Brand	DAF
Model	LF45 Series
Category	Trucks
Language	English