DIAGNOSTICS
4-8
©
200508
Automatic gearbox
1
ΛΦ45/55 series
3
Range test
56 00
11
22
33
44
55
66
77
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
Range test when using coupling C3
57 11
22
44
66
88
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.
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.
Fault in ECU
69 12,13
14,15
16,21
22,23
24,25
26,32
33,34
35,36
1. Delete the fault codes and try to re-start the vehicle.
2. If the fault re-occurs, replace the ECU.
3. If the fault has not been cleared, contact your Allison dealer.
Main code Sub-code RECOMMENDED PROCEDURES
DAF LF Gearboxes and Clutch Service Manual