ABS fault on my DIC question

I think you are right on that. I thought they were the same.

http://www.355nation.net/forum/brakes/76394-abs-fault-bs.html

http://www.355nation.net/forum/brakes/157849-true-false-replacing-abs-vehicle.html

http://www.355nation.net/forum/chassis/43907-differences-04-08-09-spindles.html#post1295178

http://www.355nation.net/forum/brakes/32970-brake-upgrade-09-brakes-front-04-08-355s.html

Hopefully these can give you more info. It looks like the ABS sensors are held on by a bolt rather than pressed onto the hub.

Front Wheel Speed Sensor Replacement (2009-2012)

Removal Procedure

Warning: Refer to Brake Dust Warning

1. Within the engine compartment, disconnect the wheel speed sensor electrical connector (1).
2. Release the wheel speed sensor harness connector from the wheelhouse.
3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
4. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

5. Release the wheel speed sensor harness clips (1) from the suspension upper control arm.

6. Release the wheel speed sensor harness grommet (1) from the mounting bracket.

7. Remove the wheel speed sensor harness bracket bolt (1).

8. Thoroughly clean the wheel speed sensor mounting area of the steering knuckle of any dirt and debris.
9. Remove the wheel speed sensor bolt (1).

Note: Do not pry or lever against the wheel speed sensor to remove.

10. Carefully remove the wheel speed sensor from the suspension knuckle by pulling straight upward.

Installation Procedure


1. Install the wheel speed sensor to the suspension knuckle.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the wheel speed sensor bolt (1) and tighten to 8 N·m (71 lb in).

3. Install the wheel speed sensor harness bracket bolt (1) and tighten to 9 N·m (80 lb in).

4. Install the wheel speed sensor harness grommet (1) to the mounting bracket.

5. Install the wheel speed sensor harness clips (1) to the suspension upper control arm.

6. Install the wheel speed sensor harness connector to the wheelhouse.
7. Connect the wheel speed sensor electrical connector (1).
8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
9. Perform the Diagnostic System Check - Vehicle.

Rear Wheel Speed Sensor Replacement (2009-2012)

Removal Procedure

Warning: Refer to Brake Dust Warning in the Preface section.


1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Remove the wheel speed sensor bolts (1).

3. Remove the wheel speed sensor (1) from the drum brake backing plate by carefully straight outward.

4. Release the wheel speed sensor harness retainers (1) on the rear park brake cable.
Release the harness from the retainers.

5. Disconnect the wheel speed sensor electrical connector (1).
6. Release the electrical connector and harness retainer (2) from the frame.
7. Remove the wheel speed sensor assembly.


Installation Procedure


1. Position the wheel speed sensor assembly to the vehicle.
2. Connect the wheel speed sensor electrical connector (1).
3. Install the electrical connector and harness retainer (2) to the frame.

4. Position the wheel speed sensor harness to the retainers (1) on the rear park brake cable.
5. Fasten the wheel speed sensor harness retainers.

6. Install the wheel speed sensor (1) to the drum brake backing plate.

Caution: Refer to Fastener Caution in the Preface section.


7. Install the wheel speed sensor bolts (1) and tighten to 17 N·m (13 lb ft).
8. Lower the vehicle.
9. Perform the Diagnostic System Check - Vehicle.

2009 Chevrolet COLORADO EXT CAB BRAKE CALIPER MOUNTING/FRONT & KNUCKLE

Item Number: 001
Part Number: 25832173
Description: SENSOR. Electronic Brake Control
SENSOR,FRT WHL SPD. Required: 02
SENSOR,FRT WHL SPD(ACDelco #25832173). Required: 02
For: S1 5.3 (LH9),CHAS PKG(Z85) (2010-2011) (2010 - 2011).
For: S1 5.3-L(LH8),CHAS PKG(Z85) (2009-2009) (2009 - 2009).
Cost: $31.43

Item Number: 001
Part Number: 22884493
Description: SENSOR. Electronic Brake Control
SENSOR,FRT WHL SPD(ACDelco #22884493)
BOLT-BRACKET-CONNECTOR-NUT-SENSOR-SWITCH, Electronic Brake Control. For: S1 3.7E(LLR),2.9-9(LLV),CHAS PKG(Z85) (2009 - 2012). Required: 02
BOLT-BRACKET-CONNECTOR-NUT-SENSOR-SWITCH, Electronic Brake Control. For: S1 SPORT CHAS PKG(ZQ8) (2009 - 2012). Required: 02
Cost: $31.58