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DTC Table

The table that follows lists all possible malfunctions that can be detected by ABS control module -J104- and displayed and printed out on the scan tool: VAG1551  .

NOTE:

Malfunctions stored in DTC memory are retained until the memory is erased SCAN TOOL VAG 1551, CONNECTING AND SELECTING FUNCTIONS .

Before replacing components, always check the positive and Ground connections using the appropriate Wiring Diagram and check all relevant wiring connections.

After replacing an ABS component:

-- Always check through the ABS system using the Bosch Abs Tester: VAG1710  .

-- Check and erase DTC memory.

-- Road test. Increase speed above 30 km/h (18 mph) at least once.

If the ABS warning light ABS warning light -K47- does not come on during the road test, the system is functioning properly.

Use test box VAG 1598 with adapter cable : VAG1598/3  for checking the wiring harness and electrical connections to ABS control module -J104- - (according to the wiring diagram).

Sporadic malfunctions are identified as such by the letters "/SP" appearing on the right side of the scan tool display.

NOTE:

When troubleshooting sporadic malfunctions, try moving the wiring harness that goes to the relevant component while testing (possible loose connection).

Static (non-sporadic) malfunctions that cannot be detected while the vehicle is stationary are also identified with the letters "/SP" when the ignition is switched off and back on again ABS ON BOARD DIAGNOSTIC, MY 94 AND MY 95 .

The 5-digit DTC only appears in the printout, and is not shown on the scan tool display.

Under the heading "Repairing malfunction" the DTC table also refers to various test steps in the troubleshooting program. However when troubleshooting with Bosch Abs Tester: VAG1710  it is important to carry out all the test steps listed and to keep to the specified sequence.

: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00000    
No DTC recognized
  • The OBD program is completed.
  • If there is a malfunction in the system, but the ABS control module -J104- does not detect any malfunctions: proceed to troubleshooting with ABS tester : VAG1710  .
  
00277    
ABS Inlet/Outlet Valve, LF -N137-
  • Open circuit, or short to positive or Ground between ABS hydraulic unit -N55- and ABS control module -J104-.
 -- Trace and repair open circuit or short circuit using wiring diagram.
 
  • Left front ABS inlet/outlet valve -N137- faulty.
 -- Check ABS hydraulic unit; test with : VAG1710  (test steps 1, 5).
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00283    
ABS Wheel Speed Sensor, LF -G47- (1)
  • Open circuit or short to positive (+) in wiring between -G47- and ABS control module -J104-.
 -- Trace and repair open circuit or short circuit using wiring diagram
 
  • Rotor dirty or damaged.
 -- Check, clean or replace rotor.
 
  • Excessive wheel bearing play.
 -- Replace wheel bearing SUSPENSION STRUT .
 
  • -G47- not properly installed.
 -- Check position of -G47- FRONT AXLE ABS OVERVIEW .
 
  • -G47- faulty.
 -- Check -G47- ; test with : VAG1710  (test step 6).
(1) Can be erroneously indicated as a sporadic malfunction if one of the wheels is rotated at more than 6 km/h with the ignition on.
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00284    
ABS Inlet/Outlet Valve, RF -N138-
  • Open circuit or short to positive (+) or Ground in wiring between ABS hydraulic unit -N55- and ABS control module -J104-.
 -- Trace or repair open circuit or short circuit using wiring diagram.
 
  • -N138- faulty.
 -- Check ABS hydraulic unit; test with : VAG1710  (test steps 1, 5).
00285    
ABS Wheel Speed Sensor, RF -G45- (1)
  • Open circuit or short to positive (+) in wiring between -G45- and ABS control module -J104-.
 -- Trace and repair open circuit or short circuit using wiring diagram.
 
  • Rotor dirty or damaged.
 -- Check, clean or replace rotor.
 
  • Wheel bearing play excessive.
 -- Replace wheel bearing SUSPENSION STRUT
 
  • Speed sensor -G45- not installed correctly.
 -- Check position of -G45- FRONT AXLE ABS OVERVIEW .
 
  • Speed sensor -G45- faulty.
 -- Check -G45- ; test with Bosch Abs Tester: VAG1710  (test step 6)
(1) Can be erroneously indicated as a sporadic malfunction if one of the wheels is rotated at more than 6 km/h with the ignition on.
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00287    
ABS Wheel Speed Sensor, RR -G44- (1)
  • Open circuit or short to positive (+) in wiring between -G44- and ABS control module -J104-.
 -- Trace and repair open or short circuit using wiring diagram.
 
  • Rotor dirty or damaged.
 -- Check, clean or replace rotor.
 
  • Wheel bearing play excessive.
 -- Check and adjust wheel bearing play WHEEL BEARING HOUSING .
 
  • -G44- not properly installed.
 -- Check position of -G44- REAR AXLE ABS OVERVIEW .
 
  • -G44- faulty.
 -- Check -G44- ; test with Bosch Abs Tester: VAG1710  (test step 6).
(1) Can be erroneously indicated as a sporadic malfunction if one of the wheels is rotated at more than 6 km/h with the ignition on.
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00290    
ABS Wheel Speed Sensor, LR -G46- (1)
  • Open circuit or short to positive (+) in wiring between -G46- and ABS control module -J104-.
 -- Trace and repair open circuit or short circuit using wiring diagram.
 
  • Rotor dirty or damaged.
 -- Check, clean or replace rotor.
 
  • Wheel bearing play excessive.
 -- Check and adjust wheel bearing play WHEEL BEARING HOUSING .
 
  • -G46- not properly installed.
 -- Check position of -G46- REAR AXLE ABS OVERVIEW .
 
  • -G46- faulty.
 -- Check -G46- ; test with Bosch Abs Tester: VAG1710  (test step 6).
(1) Can be erroneously indicated as a sporadic malfunction if one of the wheels is rotated at more than 6 km/h with the ignition on.
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00301    
ABS Return Flow Pump-V39
  • Open circuit or contact resistance in Ground connection or power supply to -V39-.
 -- Trace and repair open circuit or contact resistance using wiring diagram.
 
  • Open circuit or short circuit to positive (+) in wiring between ABS return flow pump relay -J105- and ABS control module -J104-.
 -- Trace and repair open circuit or short circuit using wiring diagram.
 
  • ABS return flow pump relay -J105-, ABS return flow pump -V39-, or ABS hydraulic unit faulty.
 -- Check -J105-, -V39- and -N55- ; test with Bosch Abs Tester: VAG1710  (test step 3).
  1. Can be erroneously indicated as a sporadic malfunction if one of the wheels is rotated at more than 6 km/h with the ignition on.
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00302    
ABS Solenoid Valve Relay -J106-
  • Open circuit or contact resistance in Ground connection or power supply to -J106-.
 -- Trace and repair open circuit or connector resistance using wiring diagram.
 
  • Open circuit or short circuit to positive (+) or Ground in wiring between -J106- and ABS control module -J104-.
 -- Trace and repair open circuit or short circuit using wiring diagram.
 
  • ABS Solenoid Valve Relay -J106- or ABS hydraulic unit -N55- faulty.
 -- Check -J106- and ABS hydraulic unit; test with Bosch Abs Tester: VAG1710  (test step 1).
00526    
Brake Light Switch-F
  • Open circuit or short circuit to positive (+) in wiring between Brake Light Switch, Right or Left Brake Light or ABS control module -J104-
 -- Trace and repair open circuit or short circuit using wiring diagram.
 
  • Right or left brake light faulty.
 -- Replace right or left brake light.
 
  • Brake light switch faulty.
 -- Read measuring value block to check brake light switch FUNCTION 08, MEASURED VALUE BLOCK, READING  or test using Bosch Abs Tester: VAG1710  (test step 2).
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00532    
Supply Voltage (B+)
  • Open circuit or connector resistance in voltage supply to ABS control module -J104- (terminal 1) or Ground connection to -J104-.
 -- Trace and repair open circuit or contact resistance using wiring diagram; perform test with Bosch Abs Tester: VAG1710  (test step 1).
 
  • Voltage drops or excess voltage in vehicle system.
 -- Check generator and voltage regulator => Wiring Diagram
NOTE:

As soon as voltage of vehicle electrical system is again within permissible range, the ABS is switched on again and the ABS warning light ABS warning light -K47- goes out.

This malfunction is only stored if it occurs at a vehicle speed in excess of 6 km/h (4 mph).

: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00597    
Varying Wheel Speed Impulse(1)
  • One rotor with incorrect number of teeth installed.
 -- Check all rotors Repair Information 45 and read measuring value block → FUNCTION 08, MEASURED VALUE BLOCK, READING 
 
  • One rotor dirty or damaged.
 -- Check all rotors. Clean or replace.
 
  • One speed sensor not properly installed.
 -- Check installation positions of all wheel speed sensors, front FRONT AXLE ABS OVERVIEW , rear REAR AXLE ABS OVERVIEW .
 
  • Excessive wheel bearing play at one wheel, or wheel bearing malfunctioning.
 -- Check all wheel bearings, front SUSPENSION STRUT , rear WHEEL BEARING HOUSING .
 
  • One speed sensor malfunctioning.
 -- Check all speed sensors; test with Bosch Abs Tester: VAG1710  (test step 6).
(1) Can be erroneously indicated as a sporadic malfunction if one of the wheels is rotated at more than 6 km/h with the ignition on.
: VAG1551  Scan Tool printout Possible cause of malfunction Repairing malfunction
00649    
ABS Rear Inlet/Outlet Valve, Rear-N160
  • Open circuit in wiring, short to positive or ground in wiring between ABS Hydraulic Unit -N55- and control module -J104-.
 -- Determine open circuit in wiring or short circuit according to wiring diagram and repair.
 
  • ABS Rear Inlet/Outlet Valve -N160- malfunctioning.
 -- Check hydraulic unit, carry out functional testing with Bosch Abs Tester: VAG1710  (test steps 1 and 5).
65535    
Control Module Malfunctioning
  • Open circuit or contact resistance in power supply or Ground connection to ABS control module -J104- -.
 -- Trace and repair open circuit or connector resistance using wiring diagram.
 
  • ABS control module -J104- malfunctioning.
 -- Replace ABS control module -J104-.
NOTE:

If the DTC " ABS Return Flow Pump -V39-" is also displayed, first correct that malfunction.

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