Двигатели Scania четвёртой серии. Руководство - часть 162

 

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Двигатели Scania четвёртой серии. Руководство - часть 162

 

 

86

ã

03:04-06

Fault code D404

Fault

The fuel volume solenoid valve on the rear 
bank, cylinder 4-6 is faulty.

Cause

Monitoring pin 4 and 5 on connector A1 
indicates that the voltage is too low to control 
the solenoid valve.

Remarks

As a result, the engine will probably run 
unevenly.

The engine torque is limited by approximately 
30%.

Action

If fault code 3201 is also present, low battery 
voltage is active, rectify the battery fault first.

Check the wiring and clean connector A1, B2 
and the connector to the solenoid valve.

Clear the fault code memory. Start the engine 
and accelerate the engine to full speed.

If the fault remains, first renew the fuel volume 
solenoid valve and if necessary the control unit.

Fault codes

03:04-06

ã

87

Fault code D500

Fault

The injection timing solenoid valve on the front 
bank, cylinder 1-3 is faulty.

Cause

Shorted to +24 V alternatively between pin 6 
and 7 on connector B2.

Remarks

As a result, the engine runs very unevenly and 
the whole front bank (cylinder 1-3) will 
probably be shut off.

Action

Check the wiring and clean the connectors.

Clear the fault code memory. Start the engine 
and accelerate the engine to full speed.

If the fault remains, renew the injection timing 
solenoid valve.

Fault code D501

Fault

The injection timing solenoid valve on the front 
bank, cylinder 1-3 is faulty.

Cause

Pin 6 and 7 on connector B2 shorted to earth.

Remarks

As a result, the engine runs very unevenly and 
the whole front bank (cylinder 1-3) will 
probably be shut off.

Action

Check the wiring and clean the connectors.

Clear the fault code memory. Start the engine 
and accelerate the engine to full speed.

If the fault remains, renew the injection timing 
solenoid valve.

Fault codes

88

ã

03:04-06

Fault code D502

Fault

The injection timing solenoid valve on the front 
bank, cylinder 1-3 is faulty.

Cause

Open circuit to pin 6 and 7 on connector B2.

Remarks

As a result, the engine only runs on three 
cylinders.

Action

Check the wiring and clean the connectors.

Clear the fault code memory. Start the engine 
and accelerate the engine to full speed.

If the fault remains, renew the injection timing 
solenoid valve.

Fault code D503

Fault

The injection timing solenoid valve on the front 
bank, cylinder 1-3 is faulty.

Cause

Monitoring pin 6 and 7 on connector B2 
indicates implausible values compared to other 
solenoid valves.

Remarks

As a result, the engine runs very unevenly and 
the whole front bank (cylinder 1-3) will 
probably be shut off.

Action

Check the wiring and clean connector A1, B2 
and the connector to the solenoid valve.

Clear the fault code memory. Start the engine 
and accelerate the engine to full speed.

If the fault remains, first renew the control unit 
and if necessary the injection timing solenoid 
valve.

Fault codes

03:04-06

ã

89

Fault code D504

Fault

The injection timing solenoid valve on the front 
bank, cylinder 1-3 is faulty.

Cause

Monitoring pin 6 and 7 on connector B2 
indicates that the voltage is too low to control 
the solenoid valve.

Remarks

As a result, the engine will probably run 
unevenly.

The engine torque is limited by approximately 
30%.

Action

If fault code 3201 is also present, low battery 
voltage is active, rectify the battery fault first.

Check the wiring and clean connector A1, B2 
and the connector to the solenoid valve.

Clear the fault code memory. Start the engine 
and accelerate the engine to full speed.

If the fault remains, first renew the injection 
timing solenoid valve and if necessary the 
control unit.

Fault codes

 

 

 

 

 

 

 

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