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Interrogating and erasing fault memory
Fault codes 17954 - 19561
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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17954P1546
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Charge pressure control solenoid valve -N75
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Short to positive
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- Short to positive
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- Reduced engine power
- Charge pressure too low
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- Test -N75
=>Page01-77,Basicsetting, Display group 011
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17957P1549
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Charge pressure control solenoid valve -N75
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Open circuit/short to earth
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- Wiring open circuit
- Solenoid valve defective
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- Short to earth
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- Reduced output
- Charge pressure too high
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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17958P1550
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Charge pressure
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Control difference
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- Charge pressure control solenoid -N75 defective
- Hose connections interchanged, not connected
- Leaks between turbocharger and engine (charge pressure routing)
- Turbocharger defective
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- Reduced engine power
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- Test -N75
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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17964P1556
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Charge pressure control
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Regulating limit not reached
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- Charge pressure control solenoid valve -N75 defective
- Leaks between turbocharger and engine (charge pressure routing)
- Turbocharger defective
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- Reduced engine power
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- Test -N75
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17965P1557
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Charge pressure control
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Regulating limit surpassed
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- Hose connections interchanged, not connected
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- Charge pressure too high
- Reduced engine power
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17977P1569
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CCS Switch -E45
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Implausible signal
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- Open circuit or short in wiring
- -E45 defective
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- No cruise control system function
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- Test cruise control system =>Page 23-125
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18008P1600
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Voltage supply terminal 15
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Voltage too low
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- No current supply when ignition is on (terminal 15)
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- Various running problems
- Engine cuts out
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- Test voltage supply for Diesel direct injection system =>Page 23-69
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18009P1601
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Voltage supply relay
terminal 30 -J317 1)
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- Relay defective
- Relay sticking (sporadically)
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- Engine will not start
- Various running problems
- Engine cuts out
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18017P1609
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Crash-switch off triggered
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- Airbag was triggered
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=> Body, Self-diagnosis; Repair group 01; Self-diagnosis of airbag system
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- Final control diagnosis of airbag system performed
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- Fault entered in engine control unit by final control diagnosis
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- Erase fault memory
=>Page 01-7
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1) Incorrect fault text display. The relevant component is:
Diesel direct injection system relay -J322
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18020P1612
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Engine control unit
Wrong coding
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- Invalid control unit coding
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- Glow period warning lamp -K29 flashes
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- Code control unit
=>Page 01-83
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18024P1616
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Glow period warning lamp -K29
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Short to positive
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- Short to positive
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- Glow period warning lamp -K29 not functioning
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- Test glow period warning lamp -K29 =>Page 01-64, Final control diagnosis
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18025P1617
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Glow period warning lamp -K29
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Open/short circuit to earth
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- Wiring open circuit
- Bulb defective
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- Short to earth
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- Glow period warning lamp -K29 permanently on
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18026P1618
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Glow plug relay -J52
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Short to positive
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- Wiring short to positive
- -J52 defective
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- No glow plug activation
- Poor cold starting
- Glow period warning lamp -K29 flashes
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- Test -J52
=>Page 01-64, Final control diagnosis
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18027P1619
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Glow plug relay -J52
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Open circuit/short to earth
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- Wiring open circuit or short to earth
- -J52 defective
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18034P1626
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Drive train data bus
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No message from gearbox control unit
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- Fault in data wiring to gearbox control unit
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- Drivability problems (shift jolts, load change jerk)
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- Test data bus
=> Page 23-132
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18039P1631
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Accelerator position sender -G79
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Signal too high
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- -G79 defective
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- Increased idling speed
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- Test -G79 and adjust
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18040P1632
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Accelerator position sender -G79
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Voltage supply
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- Operating voltage too high or too low
- Wiring open circuit
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- Glow period warning lamp -K29 flashes
- Increased idling speed
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18047P1639
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Accelerator position sender 1/2
-G79+G1852)
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Implausible signal
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- -G79 defective
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- Increased idling speed
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2) Incorrect fault text display. The relevant component is:
Accelerator pedal position sender -G79
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18048P1640
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Control unit defective
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- Internal fault in control unit
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- Engine running problems
- Engine cuts out
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- Renew control unit
=> Page 23-57
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18056P1648
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Drive train data bus
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Defective
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- Fault in data wiring to gearbox control unit or ABS control unit
- Fault in system: Automatic gearbox or ABS
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- Drivability problems (shift jolts, load change jerk)
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- Test data bus
=>Page 23-134
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18057P1649
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Drive train data bus
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Message from ABS control unit missing
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- Fault in data wiring to ABS control unit
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18058P1650
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Drive train data bus
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Message from combi-instrument missing
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- Fault in data wiring to dash panel insert
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- Test data bus
=> Page 23-136
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18062P1654
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Please interrogate fault memory of combi-instrument
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- Oil level/oil temperature sender -G266 defective
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- Oil level warning lamp lights up
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=> Electrical system, Self-diagnosis; Repair group 01
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18065P1657
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Air conditioning input/output
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Short to positive
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- Short to positive
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- Reduced vehicle acceleration when air conditioning is switched on
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- Test air conditioner compressor shut-off function=> Final control diagnosis Page 01-64
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18067P1659
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Radiator fan activation 1
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Short to positive
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- Short to positive
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- Test radiator fan -V7
=> Current flow diagrams, Electrical fault finding and fitting locations
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18071P1663
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Unit injector solenoid valve activation
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Short to positive
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- Short to positive in engine wiring harness
- Internal short circuit to positive in engine control unit
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- Engine stops
- (continuous fault)
- Engine misfiring
- (sporadic fault)
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- Test unit injector solenoid valves
=>Page 23-32
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18072P1664
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Unit injector solenoid valve activation
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Electrical fault in current circuit
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- Open circuit in wiring or short circuit to earth in engine wiring harness
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18073P1665
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Unit injector solenoid valve activation
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Mechanical fault
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- Unit injector defective mechanically
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- Engine misfiring
- Engine stops
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- Renew unit injector
=>Page 23-38
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18074P1666
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Unit injector solenoid valve, No. 1 cyl. -N240
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Electrical fault in current circuit
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- Open circuit in wiring or short circuit to earth in engine wiring harness
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- Various running problems
- Engine runs rough
- Reduced engine power
- Increased emission figures
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- Test unit injector solenoid valves
=>Page 23-32
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18075P1667
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Unit injector solenoid valve, No. 2 cyl. -N241
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Electrical fault in current circuit
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- Open circuit in wiring or short circuit to earth in engine wiring harness
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- Various running problems
- Engine runs rough
- Reduced engine power
- Increased emission figures
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- Test unit injector solenoid valves
=>Page 23-32
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18076P1668
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Unit injector solenoid valve, No. 3 cyl. -N242
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Electrical fault in current circuit
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- Open circuit in wiring or short circuit to earth in engine wiring harness
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- Various running problems
- Engine runs rough
- Reduced engine power
- Increased emission figures
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- Test unit injector solenoid valves
=>Page 23-32
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18077P1669
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Unit injector solenoid valve, No. 4 cyl. -N243
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Electrical fault in current circuit
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- Open circuit in wiring or short circuit to earth in engine wiring harness
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- Various running problems
- Engine runs rough
- Reduced engine power
- Increased emission figures
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- Test unit injector solenoid valves
=>Page 23-32
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18080P1672
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Radiator fan activation 1
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Open circuit/short circuit to earth
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- Open circuit in wiring/short circuit to earth
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- Test radiator fan -V7
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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18090P1682
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Drive train data bus
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Implausible message from ABS control unit
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- Fault in data wiring to ABS control unit
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- Test data bus
=>Page 23-134
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19458P3002
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Kick-down switch -F8
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Implausible signal
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- Accelerator position sender -G79 defective
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- Gearshift points of automatic gearbox not OK
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- Test -G79 and adjust
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19459P3003
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Low heat output relay -J359
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Short circuit to positive
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- Open circuit in wiring or short circuit to positive
- -J359 defective
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- Additional heater element not working
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- Test -J359
=> Final control diagnosis, Page 01-64
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19461P3005
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High heat output relay -J360
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Short circuit to positive
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- Open circuit in wiring or short circuit to positive
- -J360 defective
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- Test -J360
=> Final control diagnosis, Page 01-64
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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19463P3007
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Camshaft position sender -G40
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No signal
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- -G40 defective
- Sender incorrect or incorrectly secured
- Gap between sender and sender wheel on camshaft not OK
- Open circuit in wiring or short circuit to earth
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- Time to start engine is increased
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- Test -G40
=> Page 23-112
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19464P3008
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Camshaft position sender -G40
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Signal outside tolerance
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- Sender wheel on camshaft damaged, turned out of position or loose
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- Engine will not start
- Engine stops
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- Test camshaft position and sender wheel position
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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19556 P3100
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Intake manifold flap motor -V157
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Short circuit to positive
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- Short circuit to positive
- -V157 defective
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- Rough jolt when turning engine off
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- Test -V157
=> Final control diagnosis
Page 23-24
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19557 P3101
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Intake manifold flap motor -V157
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Open circuit/short circuit to earth
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- Open circuit in wiring or short circuit to earth
- -V157 defective
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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19558 P3102
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Intake manifold flap motor -V157
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No signal
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- Wiring open circuit
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- Rough jolt when turning engine off
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- Test -V157
=> Final control diagnosis
Page 23-24
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19559 P3103
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Intake manifold flap motor -V157
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Defective
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- -V157defective
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Display on VAS 5051
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Possible causes of fault
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Possible effects
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Fault remedy
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19560P3104
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Intake manifold flap change-over valve -N239
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Short circuit to positive
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- Short circuit to positive
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- Rough jolt when turning engine off
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- Test -N239 => Final control diagnosis, Page 23-18
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19561P3105
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Intake manifold flap change-over valve -N239
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Open circuit/short circuit to earth
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- Open circuit in wiring or short circuit to earth
- -N239 defective
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