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Fault table, fault codes 00282...00530
Fault table, fault codes 00282...00530
Notes:
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◆ Explanation of the fault types (e.g. "open circuit/short circuit to earth"):
=> Fault reader operating instructions
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◆ If components are indicated as faulty:
First check the wiring and connectors to these components as well as the system earth connections according to current flow diagram. This is particularly relevant if faults are output as "occurring sporadically" (SP).
V.A.G 1551 print out, e.g.:
00523 030
Intake air temperature sender -G42
Signal too large
Sporadic fault
Explanation:
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◆ 00523 = Fault code
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◆ 030 = Fault type as number
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◆ Intake air temperature sender -G42 = Faulty current path or incorrect location
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◆ Short to earth = Fault type as text
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◆ Sporadic faults = Faults that are not always present e.g. loose contact
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00282
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Throttle valve positioner -V60-1)
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Short circuit
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- Wiring open circuit or short to earth/positive
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- Cold starting problems
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- Check V60
, checking throttle valve control part
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- Cold idling problems
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Blocked or no voltage
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- V60 defective/sticking
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- Emergency mechanical running
- Hard load change
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Connectors
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- Cables interchanged
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Upper limit value
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Signal outside tolerance
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Implausible signal
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- Throttle valve stiff
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- Cruise control system not functioning
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Regulating difference
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- Engine control unit signal output defective (engine control unit defective)
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- Replace engine control unit
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1)
The throttle valve positioner V60 is a component of the throttle valve control part J338.
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00305
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Fuel consumption indicator signal
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Short to positive
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- Short to positive in wiring between engine control unit and on-board computer
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Check signal for fuel consumption indicator
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00513
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Engine speed sender -G28
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No signal
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- Open circuit or short to earth or positive in signal wire
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- Engine no longer runs up to cut-off speed (engine speed governed to approx. 5100 rpm)
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- Test -G28
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- Earth wire has open circuit or short to positive
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- Reduced performance
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- Open circuit in screening from -G28
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- Engine will not start or is difficult to start when cold (cold starting problems)
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- -G28 defective
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- Engine will not start or is difficult to start when warm (hot starting problems)
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- Engine control unit signal output defective (engine control unit defective)
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- Replace engine control unit
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Continued on next page
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00513
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Engine speed sender -G28
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Implausible signal
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- Metal particles on engine speed sender -G28
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- Engine no longer reached governed speed (governed speed approx. 5100 rpm)
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- Check G28 for tight fit/metal particles
, item 22
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- Gap -G28/sender wheel too large
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- Reduced performance
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- Engine starts reluctantly or not at all when cold (cold start problems)
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- Engine starts reluctantly or not at all when warm (hot start problems)
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- Sender wheel loose
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=> Repair group 13; Removing and installing crankshaft
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Note on fault code 00513:
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◆ Metal particles can cause additional signals to be generated.
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◆ Signals may not be generated or be too small and therefore not recognised if the sender gap to sender wheel is too large or the sender wheel is damaged.
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◆ The signals can be irregular if the sender wheel is loose.
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00515
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Hall sender -G40
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No signal
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- Fault in power supply or earth connection for -G40
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- Engine no longer runs up to cut-off speed (engine speed governed to approx. 5100 rpm)
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- Test -G40
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Implausible signal
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- Faulty signal input in engine control unit (control unit defective)
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- Engine starts reluctantly or not at all when cold (cold start problems)
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- Open circuit or short to positive or earth in signal wire between -G40 and engine control unit
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- Engine starts reluctantly or not at all when warm (hot start problems)
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- Rectify open circuit or short using current flow diagram
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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Continued on next page
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00515
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Hall sender -G40
(cont.)
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- -G40 defective
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- Loss of power
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- See previous page for fault types
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- Toothed belt has jumped tooth (signal does not occur at point expected)
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- Further affects possible, see previous page
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- Check engine valve timing:
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- Loose contact
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- Rotor trim defective (bent, cracked)
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00516
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Idling switch -F601)
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Open circuit/short to positive
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- Wiring open circuit or short to positive or short to earth in signal wire from -F60 to engine control unit
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- Poor performance when driving off
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- Check F60
, checking throttle valve control part
Eliminate wiring open circuit or short circuit using current flow diagram
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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Short to earth
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- -F60 defective
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- Poor performance during transfer from idling/overrun to part load
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- Adjust throttle cable
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- Throttle valve sticking
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- Floor mat pressing on accelerator pedal
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- Idling speed is not within specified range
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- Accelerator cable adjustment
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Continued on next page
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1)
The idling switch F60 is a component of the throttle valve control part J338.
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00516
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Idling switch -F601)
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Fault type - see previous page
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- Moisture in plug connector for throttle valve control part
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- See previous page
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- Engine control unit signal output defective (engine control unit defective)
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- Replace engine control unit
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1)
The idling switch F60 is a component of the throttle valve control part J338.
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00518
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Throttle valve potentiometer -G691)
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- G69 defective
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Open circuit/short to positive
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- Wiring open circuit in earth wire
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- Wire has short to positive
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- Hard load change
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- Check -G69
, checking throttle valve control part
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- -G69 defective
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Open circuit/short to earth
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- -G69 defective
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- Engine does not rev freely
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- Eliminate short or wiring open circuit using current flow diagram:
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- Open circuit
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- Short to earth in signal wire between -G69 and engine control unit
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=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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Implausible signal
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- Loose contact
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Continued on next page
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1)
The throttle valve potentiometer G69 is a component of the throttle valve control part J338.
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00518
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Throttle valve potentiometer -G691)
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Implausible signal (cont.)
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- -G69 defective
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- See previous page
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- See previous page
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- Moisture or corrosion on plug connector for potentiometer
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- Engine control unit signal output defective (engine control unit defective)
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- Replace engine control unit
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1)
The throttle valve potentiometer G69 is a component of the throttle valve control part J338.
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Output on V.A.G 1551 printer
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Possible causes of fault
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Possible effects
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Fault remedy
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00520
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Air mass/flow meter -G70/G19
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Short to positive
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- Wiring open circuit or short to positive or short to earth in wiring between -G70 and engine control unit
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- Engine running problems
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- Check G70
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Open circuit/short to earth
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- G70 defective
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- Fuse 43 defective
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- Check fuse
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- Engine control unit signal output defective (engine control unit defective)
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- Replace engine control unit
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00522
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Coolant temperature sender -G62
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Open circuit/short to positive
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- Wiring open circuit or short to positive or short to earth in the wire between -G62 and engine control unit
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- Difficult cold starting at very low temperatures
- Poor performance in warm-up phase
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- Check G62
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Short circuit to
earth
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- -G62 defective
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Implausible signal
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- Faulty earth connection for -G62
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- Increased fuel consumption
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- Test -G62
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- Signal input in engine control unit defective (control unit defective)
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- Increased exhaust emission figures
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- Replace engine control unit
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- Loose contact or corrosion due to moisture in connector plug
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- Unsatisfactory performance
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Output on V.A.G 1551 printer
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Possible causes of fault
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Possible effects
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Fault remedy
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00523
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Intake air temperature sender -G42
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Short to earth
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- Wiring open circuit or short to positive or short to earth in the wiring between -G42 and engine control unit
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- Difficult hot starting
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- Check G42
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Open/short circuit to positive
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- -G42 defective
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- Poor throttle response when cold or warm; pick-up problems when throttle opened
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- Check -G42
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- Faulty earth connection for -G42
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- Signal input in engine control unit defective (engine control unit defective)
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- Rough idling or no idling when cold/warm-up phase
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- Replace engine control unit
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00524
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Knock sensor 1 -G61
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Defective
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- -G61 defective
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- Check -G61
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Implausible signal
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- Knock sensor loose or corrosion on connector
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- Reduced power
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- Open circuit or short to positive/earth or to screening for signal wire between knock sensor and engine control unit
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- High fuel consumption
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- Rectify short or open circuit using current flow diagram
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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- Engine control unit signal output defective (engine control unit defective)
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- Replace engine control unit
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- Loose ancillaries causing knock sensor to receive additional signals (from vibrations)
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00525
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Lambda probe -G39
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Output open
Short to positive
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- Wiring open circuit or short to earth/short to positive in the signal wire from -G39 to engine control unit
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- No Lambda control
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- Eliminate wiring open circuit or short using current flow diagram
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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Short to earth
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- G39 earth defective
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- Poor idling
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- Check Lambda control
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Implausible signal
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- Moisture in probe heating or Lambda probe (G39) connectors causing corrosion
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- Increased fuel consumption
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- Check Lambda probe heating
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Signal too small
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- Fuse 43 defective
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- Check fuse
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Continued on next page
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00525
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Continued
Lambda probe -G39
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Signal outside tolerance
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- Lambda probe heating not functioning
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- Soot on spark plugs
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- -G39 defective
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- Emissions not OK
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- Engine control unit signal output defective (engine control unit defective)
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- Replace engine control unit
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00526
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Brake light switch -F
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- Wiring open/short circuit
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- Cruise control system not functioning
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- Check brake light switch and brake pedal switch signals
=> Page 24-149
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00530
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Throttle valve positioner/potentiometer -G881)
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Open circuit/short to positive
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- Wiring open circuit or short to earth/short to positive in the signal wire from -G88 to engine control unit
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- Throttle valve positioner is switched off; engine runs at idling with a mechanically determined quantity of air via the emergency running gap
- Different idling speed
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- Match engine control unit to throttle valve control part
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Open circuit/short to earth
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- Wiring open circuit in the earth wire from -G88 to engine control unit
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- Cold starting problems
- Cold idling problems
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- Check G88
, checking throttle valve control part
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Implausible signal
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- -G88 defective or loose contact in connector for throttle valve control part -J338
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- Hard load changes
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Continued on next page
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1)
The throttle valve positioner/potentiometer G88 is a component of the throttle valve control part J338.
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
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Fault remedy
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00530
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Throttle valve positioner/potentiometer -G881)(cont.)
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For fault types see previous page
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- Signal input defective in engine control unit (engine control unit defective)
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- Reduced performance
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- Replace engine control unit
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- Contact resistance due to moisture in connector for throttle valve control part -J338
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- Rough idling
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- Connector incorrectly wired
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1)
The throttle valve positioner/potentiometer G88 is a component of the throttle valve control part J338. It supplies information on the position of the throttle valve positioner to the control unit.
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