VAG ABS pump faults: 01276, 01130, 16352, G201 & no communication
ABS warning light on? Common VAG ABS faults are often linked to the ABS pump motor, brake pressure sensor, hydraulic block, internal ECU/control module failure, or loss of communication with the ABS unit.
This guide covers common ABS types including ATE MK60, MK61, MK25, Bosch 9, later MK100-style hydraulic faults and some MK70-style no-communication faults found across VW, Audi, SEAT and Škoda vehicles.
ABS, ESP or traction control light on?
The vehicle may still brake normally in everyday driving, but the ABS, ESP and traction control functions may be restricted or completely disabled. On some units, the fault is mainly electronic; on others, the symptom may be hydraulic, such as brake binding, no fluid to one wheel, or the vehicle pulling under braking.
Remanx can test and repair many ABS pump and control module faults, helping avoid unnecessary replacement costs where the original unit is repairable. The correct repair route depends on the ABS type, vehicle, part number, fault codes and live diagnostic findings.
Book the matching Remanx ABS repair service
Use the product buttons below to order the closest matching repair service. Always match by vehicle, ABS pump family and part number where possible. If the exact part number is not listed, use the repair request form before sending the unit.
MK60, MK61, MK25 and Transporter ABS faults
Bosch 9, MK100 and later hydraulic ABS faults
Not listed? ABS faults are not limited to the services above. If your vehicle, part number or ABS type is different, complete the repair request form with the fault codes, vehicle details, ABS part number and any symptoms such as no communication, no fluid to a wheel, binding brakes or speedometer failure.
MK70-style VAG ABS units: Remanx may still be able to test and repair some MK70-style VAG ABS faults, particularly no-communication or internal module faults, but there is not currently a dedicated VAG MK70 product listing online. Use the repair request form and include the ABS part number before sending the unit.
What does the ABS module do?
The Anti-Lock Braking System helps stop the wheels locking during heavy braking. It uses wheel speed information and hydraulic valves to control brake pressure at each wheel. On vehicles with ESP or traction control, the ABS unit is also involved in stability and traction intervention.
Many ABS assemblies include three main parts: the electronic control module, the hydraulic block and the pump motor. Depending on the ABS family, the failure can be an internal ECU fault, pump motor circuit fault, brake pressure sensor fault, valve/hydraulic fault, wiring issue or power supply problem.
Symptoms of ABS pump or module failure
- ABS warning light illuminated
- ESP, DSC or traction control light illuminated
- Brake warning light illuminated on some vehicles
- ABS or traction control disabled
- Fault codes return immediately after clearing
- No communication with the ABS module
- Pump motor fault, pump motor running incorrectly, or pump motor not activating
- Speedometer not working on some Transporter ABS faults
- Brake pressure sensor faults such as G201 on MK60 units
- Brake binding, no fluid to one or more wheels, or pulling under braking on hydraulic ABS faults
Safety note: A vehicle may still brake with an ABS fault, but anti-lock braking and stability functions may not operate correctly. If the vehicle has brake binding, no fluid to a wheel, a hard pedal, severe pulling or abnormal braking, do not continue driving until the braking system has been checked.
Common ABS types, faults and symptoms
The ABS type matters because different units fail in different ways. A G201 pressure sensor fault on an MK60 unit is a very different diagnostic route from an 01130 or 16352 internal module fault on an MK61, or a hydraulic no-fluid fault on a Bosch 9 or MK100-style unit.
ATE MK60 / MK60EC1
Typical fault: G201 brake pressure sensor / Brake Pressure Sensor 1.
- ABS and ESP lights on.
- Often drives normally but ABS/ESP functions are restricted.
- Common codes include 01435, G201 or pressure sensor circuit faults.
- Often repaired as an internal pressure sensor/module fault once external checks are ruled out.
ATE MK61
Typical faults: 01130, 16352, 01276, pump motor faults or no communication.
- ABS, ESP and traction control lights on.
- Faults may return immediately after clearing.
- 01130 and 16352 commonly point toward internal ECU/control module failure.
- 01276 needs fuse, supply, ground and wiring checks before condemning the ABS unit.
ATE MK25 / Transporter T5
Typical fault: 01276 ABS hydraulic pump V64.
- ABS warning light on.
- Common on VW Transporter T5 7H ABS units.
- Check pump fuse, power supply, earths and wiring first.
- For pump motor faults, the complete pump and ECU assembly may be needed for testing.
Transporter T5.1 ABS / 7H0 907 379
Typical faults: no communication, speedometer fault or wheel speed sensor fault.
- Diagnostic tool may not communicate with ABS.
- Speedometer may stop working.
- Wheel speed sensor faults can be stored even when the external sensor has already been checked.
- Part numbers such as 7H0907379S or 7H0907379P should be matched before ordering.
ATE MK70-style VAG ABS
Typical faults: no communication, internal module failure or pump motor related faults.
- ABS light on and ABS function disabled.
- Diagnostic communication may be intermittent or completely unavailable.
- External power, ground, CAN wiring and pump motor supply checks are still required.
- Remanx may be able to test and repair these units even where a direct VAG MK70 product listing is not currently shown online.
Bosch 9 / later hydraulic ABS
Typical faults: no brake fluid to one or more wheels, pulling or uneven braking.
- Brake hydraulic symptoms may be more obvious than diagnostic codes.
- Vehicle may pull under braking or one wheel may not bleed correctly.
- Common on some VW Polo, SEAT Ibiza and Škoda Fabia ABS/ESP units.
- Hydraulic testing is important before replacing external parts repeatedly.
ATE MK100-style / newer VAG ABS
Typical faults: sticking/binding brakes, no fluid flow, hydraulic pump or internal electronic faults.
- Brakes may bind, often on diagonal corners.
- One or more wheels may not receive brake fluid during bleeding.
- Internal valve or hydraulic faults can be mistaken for caliper, hose or master cylinder faults.
- Common on later VAG platforms including newer Škoda ABS pump listings.
Common ABS fault codes explained
Commonly associated with ATE MK60 ABS units. The fault usually relates to the internal brake pressure sensor signal rather than a wheel speed sensor.
Typical symptoms: ABS/ESP lights illuminated and the fault returns after clearing.
Relates to the ABS hydraulic pump motor circuit. It can be caused by a failed fuse, poor power supply, wiring/connector issue, pump motor fault or an internal ECU-side fault within the ABS unit.
Diagnostic approach: check pump fuses, power supply, grounds and wiring first. If these are correct, the complete ABS pump/module should be tested.
Often seen on VAG MK61 units. When it returns after clearing and external wiring/supply checks are satisfactory, it is a strong indicator of an internal ABS control module fault.
Repair direction: send the ABS unit for professional test and repair rather than repeatedly replacing wheel speed sensors without evidence.
Indicates an electrical control module fault. It is commonly associated with the ABS ECU/control module side rather than a simple external sensor issue.
Repair direction: the ABS module normally needs testing, repair or replacement when this code is present.
The diagnostic tool cannot talk to the ABS module. This can be caused by missing power/ground, CAN wiring faults, water ingress or an internal module failure.
Common examples: MK61, Transporter T5.1 and some MK70-style VAG ABS faults can appear as no communication faults.
Some later ABS faults are diagnosed by symptoms as much as fault codes. No fluid to one or more wheels, uneven braking or brakes binding can point to an internal hydraulic ABS fault.
Common examples: Bosch 9 and MK100-style ABS units.
Workshop summary: G201 pressure sensor faults are commonly linked with MK60. 01130 and 16352 are strong indicators of MK61 control module failure. 01276 needs supply, fuse, ground and wiring checks first, but can still be an ABS pump or ECU-side fault. No communication, pump motor faults and hydraulic symptoms require careful testing because external wiring, sensors and brake components can mimic ABS unit failure.
What should be checked before sending the ABS unit?
Some ABS faults are caused by external issues, so basic checks should be carried out before assuming the module is faulty. The checks are especially important for pump motor faults, no communication faults and wheel speed sensor-related faults.
Checks for 01276 / pump motor faults
- Check the ABS pump motor fuse, often located in the engine bay or near the battery depending on the vehicle
- Check the main ABS power supply and ground connections
- Inspect for corroded ground points and water ingress
- Check wiring and connectors to the ABS hydraulic pump/control unit
- Confirm supply voltages are present under load where possible
- Check for damaged wiring, connector corrosion or signs of previous repair attempts
Checks for no communication faults
- Confirm the diagnostic tool can communicate with other modules on the vehicle
- Check ABS permanent live, ignition live and ground supplies
- Check CAN wiring where applicable
- Inspect the ABS connector for water ingress, green corrosion or spread pins
- Check whether other modules also report lost communication with the ABS unit
Checks for G201 / brake pressure sensor faults
- Confirm the stored code relates to the brake pressure sensor and not a wheel speed sensor
- Check brake light switch and basic brake system inputs where relevant
- Check live data from the pressure sensor if available
- If the fault remains and wiring/supply checks are correct, the MK60 ABS module may require repair
Checks for brake binding, no fluid or pulling brakes
- Check brake calipers, flexi hoses, brake pipes and mechanical brake components first
- Confirm whether the issue affects one wheel, two diagonal wheels or one hydraulic circuit
- Check whether the affected wheel bleeds correctly with the ABS unit fitted
- If the hydraulic fault remains after external brake checks, the ABS hydraulic block may need testing
If the power supply, grounds, fuses, wiring and external brake components are okay, sending the ABS unit for test and repair is recommended. For pump motor and hydraulic faults, the complete ABS unit is often required for proper bench testing.
Can VAG ABS modules be repaired?
Yes. Many VAG ABS pump and control module faults can be repaired, depending on the ABS type, fault, unit condition and previous repair history. Remanx tests and repairs automotive electronics in-house, then returns the original unit where repair is successful.
Repairing the original ABS unit can avoid unnecessary coding work because the original module and coding are retained where the repair is successful. This can be more cost-effective than fitting a new dealer unit or used replacement that may need coding and may already have the same common weakness.
Why choose repair over replacement?
- Keep the original ABS unit and coding
- No coding required after refit when the original unit is repaired successfully
- Lower cost than many new dealer replacement units
- Tested and repaired in-house
- Fast turnaround where possible
- Warranty on completed repairs
Important: Not every ABS fault is repairable. Repairability depends on the fault type, part number, unit condition, water damage, physical damage, previous repair attempts and parts availability.
Which part should be sent?
The safest option is to send the complete ABS pump/module assembly unless the product page or Remanx team confirms that ECU-only testing is suitable. Pump motor faults, hydraulic faults, no-fluid faults and brake binding faults normally need the full hydraulic unit for accurate testing.
- G201 / MK60 pressure sensor faults: usually module-related, but match the block number and part number before sending.
- 01276 pump motor faults: send the complete unit where possible so the pump motor, hydraulic block and ECU can be checked together.
- 01130 / 16352 MK61 faults: commonly module-related, but the complete unit can help confirm the repair route.
- No communication faults: send the complete unit after power, ground and network checks have been completed.
- No fluid / binding / pulling faults: send the complete hydraulic ABS assembly for hydraulic testing.
How it works
- Match: Choose the closest ABS repair service using the fault code, vehicle, ABS type and part number.
- Check: Complete the basic fuse, supply, wiring, communication or hydraulic checks relevant to the fault.
- Send: Remove and send the ABS unit to Remanx with your order details and fault information.
- Repair: Remanx tests, repairs where possible and returns the original unit ready for refit.
If you are dealing with 01276, make sure the fuse, supply, ground and wiring checks have been carried out first. If you are dealing with 01130 or 16352, the ABS module is very likely to need professional test and repair. For G201 faults, MK60 brake pressure sensor repair is often the correct direction once the fault has been confirmed.
Need your ABS pump repaired?
Order the matching repair service, or complete the repair request form with your fault code, vehicle details, symptoms and ABS part number. Remanx will test and repair the ABS unit where possible.
1 comment
Hi,
i have a Golf 2 G60 ABS problem. The electric motor of the hydraulic pump does not switch off automatically.
The two fuses and relays are new.
High pressure switch, pressure accumulator? What could that be? Can you repair this old thing? In Austria it´s impossible.
Best regards
Andreas Tamegger