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Code control unit - ABS BOSCH 5.7 > < Fault table - ABS systems BOSCH 5.7

Fault Table for ABS Systems BOSCH 80 - Fabia Mk1 Chassis

Fault table - ABS systems BOSCH 8.0
   
Fault table - ABS systems BOSCH 8.0
  Note
t  As the control units are interlinked over two data BUS lines, always start fault finding by activating the function „Automatic test sequence“ → Chapter on all control units fitted to the vehicle This allows to interrogate all the control units fitted in the vehicle in order to determine their possible faults.
t  All the possible faults which can be detected by the ABS control unit -J104- and which can be displayed on vehicle system tester -V.A.G 1552- during interrogation of the fault memory content, are listed below.
t  The fault table is ordered according to the 5-digit fault code on the left.
t  The fault table may also display the fault type.
t  Before replacing components found to be faulty, test all corresponding plug connections, lines and earth connection according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
t  After carrying out the repair always interrogate and erase the fault memory using vehicle system tester -V.A.G 1552- and perform a test drive (at a speed above 20 km/h).
t  After the test drive interrogate the fault memory again.
Readout on display -V.A.G 1552-Rectifying fault
No fault detected If after repair „No fault detected“ is displayed, the self-diagnosis is completed.
If in spite of display read-out „No fault detected“ the ABS does not operate without fault, proceed as follows:
1. Perform a test drive at a speed above 20 km/h,
2. interrogate the fault memory again, if still no fault is stored,
00003 
–  Replace hydraulic control unit → Chapter.
Control unit defective
00257 
–  Performing final control diagnosis, function 03 → Chapter.
–  Check wiring and plug connections to the ABS control unit -J104- according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
If none of the above measures results in elimination of the fault:
–  Replace hydraulic control unit → Chapter.
ABS FL- N101 inlet valve 
00259 
ABS FR -N99 inlet valve 
00265 
ABS FL- N102 outlet valve 
00267 
ABS FR- N100 outlet valve 
00273 
ABS RR -N133 inlet valve 
00274 
ABS RL -N134 inlet valve 
00275 
ABS RR -N135 outlet valve 
00276 
ABS RL -N136 outlet valve 
00283Mechanical fault
–  Reading measured value block → Chapter, display group 001.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Check the front left speed sensor -G47- and sensor ring for damage.
–  ReplacingDrehzahlfühler -G47-, if necessary replace sensor ring → Chapter.
If the fault occurs again:
–  Replace hydraulic control unit → Chapter.
Speed sensor vl-G47 
 implausible signal
 
electrical fault in the circuit
00285Mechanical fault
–  Reading measured value block → Chapter, display group 001.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Check the front right speed sensor -G45- and sensor ring for damage.
–  ReplacingDrehzahlfühler -G45 -, if necessary replace sensor ring → Chapter.
If the fault occurs again:
–  Replace hydraulic control unit → Chapter.
Speed sensor vr-G45 
 implausible signal
  
 electrical fault in the circuit
00287Mechanical fault
–  Reading measured value block → Chapter, display group 001.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Check the rear right speed sensor -G44- and sensor ring for damage.
–  ReplacingDrehzahlfühler -G44-, if necessary replace sensor ring → Chapter.
If the fault occurs again:
–  Replace hydraulic control unit → Chapter.
Speed sensor hr-G44 
 implausible signal
  
 electrical fault in the circuit
00290Mechanical fault
–  Reading measured value block → Chapter, display group 001.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Check the rear left speed sensor -G46- and sensor ring for damage.
–  ReplacingDrehzahlfühler -G46-, if necessary replace sensor ring → Chapter.
If the fault occurs again:
–  Replace hydraulic control unit → Chapter.
Speed sensor hl-G46 
implausible signal
 
electrical fault in the circuit
 
00301implausible signal
–  Reading measured value block → Chapter, display group 006.
–  Performing actuator diagnosis → Chapter
–  Check fuse, wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
If the fault occurs again:
–  Replace hydraulic control unit → Chapter.
Return flow pump for ABS - V39
00493no signal/communication
–  Reading measured value block → Chapter, display groups 005 or 126.
–  Check wiring and plug connections to the ABS control unit -J104- according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
If none of the above measures results in elimination of the fault:
–  Replace ESP sensor unit -G419- → Chapter.
Sensor unit for ESP -G419 
 implausible signal
00526implausible signal
–  Reading measured value block → Chapter, display group 002.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Replace brake light switch -F- → Chapter.
Brake light switch -F 
 Open circuit
00532Signal too low
–  Reading measured value block → Chapter, display group 006.
–  Determine and eliminate open circuit in voltage supply → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Test battery, AC generator and voltage regulator → Current flow diagrams, Electrical fault finding and Fitting locations.
The ABS, ABS/TCS or ABS/TCS/ESP system is switched on again as soon as the vehicle voltage exceeds 10 volts and the warning lights go out.
–  Test earth connections.
If no fault is found in the voltage supply:
–  Replace hydraulic control unit → Chapter.
Supply voltage
Note:
t  This fault is related to the voltage supply of the control unit.
t  This fault is only stored if it occurs at a vehicle speed above 6 km/h.
 
00597Mechanical fault
–  Test wheels and tyre pressures → Chapter.
–  Check the fitting position of the speed sensor and wheel bearing with sensor ring and replace if necessary → Chapter or. → Chapter.
Different wheel speed pulses
00753Short circuit to positive
–  Check wiring and plug connections to the ABS control unit - J104- according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
Electr. connections wheel speed pulseselectrical fault in the circuit
00778defective
–  Reading measured value block → Chapter, display groups 005 and 125.
–  Perform null balance of the steering angle sender - G85- → Chapter.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  If necessary replace steering angle sender -G85- → Chapter.
Steering angle sender -G85
No or incorrect basic setting/adaption
–  Perform null balance of the steering angle sender -G85- → Chapter.
no signal/communication
–  Read measured value block → Chapter, display group 125.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
implausible signal
–  Reading measured value block → Chapter, display group 005.
–  Check fitting position of the steering angle sender -G85- → Chapter.
–  Perform chassis alignment → Chapter.
–  Perform null balance of the steering angle sender -G85- → Chapter.
01044 
–  Check coding of the ABS control unit -J104- → Chapter.
Control unit wrongly coded
01119 
–  Performing automatic test sequence → Chapter.
Signal for gear recognition
01130 
–  Erase fault memory (05) → Chapter.
–  End output (06) → Chapter.
–  Switch off ignition.
–  Switch on ignition.
–  Interrogate fault memory (02) → Chapter.
If the fault occurs again:
–  Replace hydraulic control unit → Chapter.
ABS operation
01200 
–  Test relay for solenoid valves, read measured value block → Chapter, display group 006.
–  Determine and eliminate open circuit in voltage supply → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Test battery, AC generator and voltage regulator → Current flow diagrams, Electrical fault finding and Fitting locations.
If no fault is found in the voltage supply:
–  Performing final control diagnosis, function 03 → Chapter.
Power supply for ABS valves
Note:
t  This fault concerns the voltage supply of the valves of the hydraulic unit -N55-.
 
01201 
–  Test relay for return flow pump for ABS -V39-, read measured value block → Chapter, display group 006.
–  Determine and eliminate open circuit in voltage supply → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Test battery, AC generator and voltage regulator → Current flow diagrams, Electrical fault finding and Fitting locations.
If no fault is found in the voltage supply:
–  Performing final control diagnosis, function 03 → Chapter.
Power supply for ABS pump
Note:
t  This fault concerns the voltage supply of the return flow pump for ABS -V39-.
01312defective1)
–  Check coding of the ABS control unit -J104- → Chapter.
–  Test the control unit coding → Engine - Fuel Injection → Rep. gr.01.
–  Testing data BUS → Electrical system; Rep. gr.90
Drive databus
  
 defect
sporadic1)
–  Erasing fault memory → Chapter.
–  No further measures required.
–  Inform customer.
 

1) The fault does not result in the ABS warning light -K47- or the dual circuit and hand brake system warning light -K7 - lighting up. The ABS function is fully maintained.
   
Readout on display -V.A.G 1552-Rectifying fault
01314no signal/communication
–  Read measured value block → Chapter, display group 125.
–  Testing data BUS → Electrical system; Rep. gr.90
–  Perform self-diagnosis of the engine control unit → Engine - Fuel Injection → Rep. gr.01.
Engine control unit
please read out fault memory
–  Read out fault memory of the engine control unit → Engine - Fuel Injection → Rep. gr.01.
01315no signal/communication
–  Read measured value block → Chapter, display group 125.
–  Testing data BUS → Electrical system → Rep. gr.90
–  Perform self-diagnosis of the gearbox control unit → automatic gearbox 001 → Rep. gr.01.
Gearbox control unit
please read out fault memory
–  Read out the fault memory of the automatic gearbox control unit → Automatic gearbox 001 → Rep. gr.01.
01317no signal/communication
–  Read measured value block → Chapter, display group 125.
–  Testing data BUS → Electrical system → Rep. gr.90
–  Perform self-diagnosis of the dash panel insert → Electrical System → Rep. gr.90.
Control unit with display in dash panel insert -J285
01321no signal/communication
–  Read measured value block → Chapter, display group 127.
–  Testing data BUS → Electrical system → Rep. gr.90
Airbag control unit -J234
–  Perform self-diagnosis for airbag system → Body Work → Rep. gr.01
 
01418 
–  Check wiring and plug connections to the ABS control unit -J104- according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Performing final control diagnosis, function 03 → Chapter.
–  Replace hydraulic control unit → Chapter.
Vehicle stability program switch valve -1- N225
01419 
Vehicle stability program switch valve -2- N226
01420 
Vehicle stability program high pressure valve -1- N227
01421 
Vehicle stability program high pressure valve -2- N228
01435implausible signal
–  Reading measured value block → Chapter, display group 005.
–  Erase fault memory (05) → Chapter.
–  End output (06) → Chapter.
–  Switch off ignition.
–  Switch on ignition.
If the fault occurs again:
–  Replace hydraulic control unit → Chapter.
Brake pressure sender 1 -G201
01486 
–  Perform or end ESP road and system test → Chapter
System function test activated
01683 
–  Test wheels and tyre pressures → Chapter.
–  Check the fitting position of the speed sensor and wheel bearing with sensor ring and replace if necessary → Chapter or. → Chapter.
–  Check wiring and plug connections for the speed sensor according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
Wheel speed signals/speed
01765 
–  Perform self-diagnosis of the engine control unit → Engine - Fuel Injection → Rep. gr.01.
Engine control unit control difference
01766implausible signal
–  Perform ESP road and system test → Chapter.
–  Erase fault memory (05) → Chapter.
–  End output (06) → Chapter.
–  Switch off ignition.
–  Switch on ignition.
If the fault occurs again:
–  Perform self-diagnosis of the engine control unit → Engine - Fuel Injection → Rep. gr.01.
Brake control unit control difference
01826 
–  Test wiring and plug connections to the steering angle sender -G85- according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Test battery, AC generator and voltage regulator → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Perform test drive or null balance of the steering angle sender -G85- → Chapter.
–  Erase fault memory (05) → Chapter.
–  End output (06) → Chapter.
–  Switch off ignition.
–  Switch on ignition.
If the fault occurs again:
–  Replace steering angle sender -G85- → Chapter.
Steering angle sender -G85, Voltage supply tml. 30
Note:
t  This fault is stored, if the steering angle sender -G85- is separated or the onboard voltage is NOK.
01827 
–  Perform self-diagnosis of the dash panel insert → Electrical System → Rep. gr.90.
Control unit with display in dash panel insert -J285-, wheel circumference implausible
16347 
–  Replace hydraulic control unit → Chapter.
Control unit defective
18055 
–  Check coding of the ABS control unit -J104- → Chapter.
–  Test the control unit coding → Engine - Fuel Injection → Rep. gr.01.
–  Check coding of the gearbox control unit → Automatic gearbox 001 → Rep. gr.01.
Inspect coding/variants of the control units in the drive train
18265 
–  Read out fault memory of the engine control unit → Engine - Fuel Injection → Rep. gr.01.
Load signal

   

Code control unit - ABS BOSCH 5.7 > < Fault table - ABS systems BOSCH 5.7