Двигатели Scania четвёртой серии. Руководство - часть 152

46

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03:04-06

Fault code 3106

Fault

Internal fault in the coordinator or the EDC 
control unit.

Cause

The EDC control unit and the coordinator do 
not agree about the relation between the 
accelerator pedal and the idle speed switch.

Remarks

The fault results in 0% throttle actuation and 
limp home speed of 750 rpm as long as the 
fault is active.

Action

First check if there are any fault codes relating 
to the accelerator pedal in the coordinator and 
rectify these.

Then clear the fault code and test drive the 
vehicle for approximately 10 minutes.

If the fault code has been regenerated, renew 
the coordinator.

Clear the fault code again and test drive the 
vehicle for approximately 10 minutes.

If the fault code has been regenerated, renew 
the EDC control unit.

Fault codes

03:04-06

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47

Fault code 3200

Fault

The control unit has received information that 
the battery voltage has been above 47 V for 
0.2 seconds.

Cause

The voltage between pin 1/6 and 2/7 in 
connector B1 is too high.

Remarks

The engine will shut down immediately if the 
battery voltage exceeds 47 V and the vehicle 
speed = 0 km/h.

If the vehicle speed is > 0 km/h, the engine will 
idle for 5 minutes before it is shut down.

The fault can occur when jump starting the 
vehicle.

Action

Check the battery and alternator.

Check the connectors and wiring.

Fault code 3201

Fault

The control unit has received information that 
the battery voltage has been below 9 V for 
0.2 seconds.

Cause

The voltage between pin 1/6 and 2/7 in 
connector B1 is too low.

Remarks

The fault may arise during cold starting if the 
battery is in poor condition.

Action

Check the battery and alternator.

Check the connectors and wiring.

Fault codes

48

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03:04-06

Fault code 3202

Fault

Internal fault in the control unit.

Cause

The control unit could not process (convert) the 
battery voltage signal.

Remarks

A pre-programmed value is used (28 V) as long 
as the fault is active.

Action

Erase the fault code. Test start the engine and 
accelerate the engine to full speed.

Renew the control unit if the fault code is 
regenerated.

Fault code 3203

Fault

The control unit does not rely on the battery 
voltage signal even though it is within the 
tolerances.

Cause

The battery voltage signal has been implausible 
when compared to the normal values at certain 
operating stages.

Remarks

Action

Check the battery and alternator.

Check the connectors and wiring.

Fault codes

03:04-06

ã

49

Fault code 3204

Fault

The battery voltage has been within the range 
of 30.56 V - 47,00 V for 5 seconds.

Cause

The voltage between pin 1/6 and 2/7 in 
connector B1 is too high.

Remarks

The engine will start to idle if the battery 
voltage has been between 30.56 V and 47.00 V 
for 15 minutes.

Action

Check the battery and alternator.

Check the connectors and wiring.

Fault code 3205

Fault

The battery voltage has been within the range 
of 9.00 V - 21.44 V for 5 seconds.

Cause

The voltage between pin 1/6 and 2/7 in 
connector B1 is too low.

Remarks

The fault code will not be generated if the 
engine speed is below 400 rpm to prevent 
incorrect generation of fault codes when 
starting.

Action

Check the battery and alternator.

Check the connectors and wiring.

Fault codes