ABS Module 850 V70 S70 C70

The ABS Module 850 V70 S70 C70 refers to the Anti-lock Braking System control module used in select Volvo models, specifically the 850 (1993–1997), V70, S70, and C70 (1998–2000). This module monitors wheel speed sensors and helps prevent wheel lockup during braking by modulating brake pressure. Common issues with this module include intermittent ABS warning lights, non-functioning speedometers, or traction control problems, often due to internal solder joint failures. Replacement or repair of the module restores proper ABS and traction control functionality.

ABS Module 850 V70 S70 C70

1996-1997 Volvo 850 With TRACS & 1998 Volvo V70, V70R, XC70, S70, C70 With Tracs

1996-1997-volvo-850-with-tracs.webp

Part numbers are identical/compatible
9162675
9140774
8602266

Vehicles with TRACS have a TRACS OFF light and a TRACS button to the right of the steering wheel.

1996-1997 Volvo 850, Without TRACS & 1998 Volvo V70, S70, C70 Without TRACS

1996-1997-volvo-850-with-tracs.webp

Part numbers are identical/compatible
9140773
8602265

1999-2000 Volvo S70, V70, C70

1999-2000 VOLVO S70,V70,C70 WITH STC TRACTION CONTROL

1999-2000-volvo-s70-with-stc-traction-control.webp

Part numbers are identical/compatible
9472088
9472401
9472866
9472971
9496440
9496946
8619538
8619545

For all S70,V70,C70 models with optional STC-traction control.  Vehicles with STC have a switch labeled "STC" to the right of the steering wheel on the dashboard. The "W" button on your center console is NOT STC traction control.

1999-2000 VOLVO S70,V70R, XC70,V70 WITH TRACS TRACTION CONTROL

1999-2000-volvo-s70-with-stc-traction-control.webp

Part numbers are identical/compatible
8622093
9472100
9472650
9496450
8622097

This is only for cars with All Wheel Drive (AWD), and 99-2000 Front Wheel Drive S70,V70R, XC70,V70 with TRACS traction control.  Vehicles with TRACS have a switch labeled "TRACS" to the right of the steering wheel.  AWD cars have TRACS by default without a button/switch.  The "W" button on your center console is not traction control.

1999-2000 VOLVO S70,V70,C70 WITHOUT TRACTION CONTROL

1999-2000-volvo-s70-without-traction-control.webp

Part numbers are identical/compatible
9467582
9472095
9472969
9496942
8619535
8619544

This is only for FWD cars without optional traction control.  The "W" button on your center console is not traction control.

Source

https://midwest-abs.com/

Wheel Speed Sensor 1996-1997 Volvo 850 and 850R & 1998 Volvo V70, V70R, XC70, S70, C70

Sensor Resistance

wheel_speed_sensor_resistance.JPG

Sensor Voltage

wheel_speed_sensor_voltage.JPG