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SECTION 4F

ANTILOCK BRAKE SYSTEM

REPAIR INSTRUCTIONS

ON-VEHICLE SERVICE

SERVICE PRECAUTIONS

Caution : Brake fluid may irritate eyes and skin. In case of contact, take the following actions:


Caution : To help avoid personal injury due to poor braking, DO NOT tap into the vehicle's brake system to operate a trailer brake system.

Notice : When fasteners are removed, always reinstall them at the same location from which they were removed. If a fastener needs to be replaced, use the correct part number fastener for that application. If the correct part number fastener is not available, a fastener of equal size and strength (or stronger) may be used. Fasteners that are not reused, and those requiring thread-locking compound will be called out. The correct torque values must be used when installing fasteners that require them. If the above procedures are not followed, parts or system damage could result.

Notice : Use only DOT 3 equivalent hydraulic brake fluid. The use of DOT 5 (silicone) brake fluid is not recommended. Reduced brake performance or durability may result.

Notice : Avoid spilling brake fluid on any of the vehicle's painted surfaces, wiring, cables, or electrical connectors. Brake fluid will damage paint and electrical connections. If any fluid is spilled on the vehicle, flush the area with water to lessen the damage.

Computer System Service Precautions

Take care to avoid electronic brake control module (EBCM) circuit overloading. In testing for opens or shorts, do not ground or apply voltage to any circuit unless instructed to do so by the diagnostic procedure. Test circuits only with a high-impedance multimeter. Never remove or apply power to any control module with the ignition switch in the ON position. Always turn the ignition to the OFF position before removing or connecting battery cables, fuses, or connectors.

General Service Precautions

BLEEDING SYSTEM

Replacement modulators are shipped already filled and bled. In normal procedures requiring removal of the modulator, such as to replace the EBCM, air will not enter the modulator, and normal bleeding will be all that is needed. For this procedure, refer to Section 4A, Hydraulic Brakes.
If air enters the hydraulic modulator, or if an unfilled modulator is installed, use the brake bleeding program in the scan tool to bleed the modulator. Manual bleeding of the hydraulic modulator is not possible.


D107E501
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FRONT WHEEL SPEED SENSOR

Removal Procedure

  1. Disconnect the negative battery cable.
  2. Raise and suitably support the vehicle.
  3. Remove the wheel. Refer to Section 2E, Tires and Wheels.
  4. Remove the front wheel speed sensor.


  5. D107E502
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    D107E503
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D17E504A
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Installation Procedure

  1. Install the front wheel speed sensor to the steering knuckle. Secure it with the bolts.
  2. Tighten
    Tighten the front wheel speed sensor bolts to 23 N•m (17 lb-ft).

  3. Connect the harness holder.
  4. Connect the electrical connector to the connector holder.
  5. Connect the front wheel speed sensor electrical connector.
  6. Install the wheel. Refer to Section 2E, Tires and Wheels.
  7. Lower the vehicle.
  8. Connect the negative battery cable.


D107E505
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REAR WHEEL SPEED SENSOR

Removal Procedure

  1. Disconnect the negative battery cable.
  2. Remove the rear wheel speed sensor.


  3. D107E506
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D17E507A
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Installation Procedure

  1. Install the rear wheel speed sensor to the rear backing plate. Secure it with the bolt.
  2. Tighten
    Tighten the rear wheel speed sensor bolt to 11 N•m (97 lb-in).

  3. Connect the harness holder.
  4. Connect the rear wheel speed sensor electrical connector.
  5. Connect the negative battery cable.


D107E508
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FRONT WHEEL SPEED RING

Removal Procedure

  1. Remove the drive axle. Refer to Section 3B, Manual Transaxle Drive Axle.
  2. Remove the speed ring from the drive axle.
  3. a. Speed ring.


D107E509
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Installation Procedure

  1. Install the speed ring to the drive axle.
  2. Install the drive axle. Refer to Section 3B, Manual Transaxle Drive Axle.


D107E510
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REAR WHEEL SPEED RING

Removal Procedure

  1. Remove the rear brake drum. Refer to Section 4E, Rear Drum Brake.
  2. Remove the speed ring from the rear brake drum.
  3. a. Speed ring.


D107E511
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Installation Procedure

  1. Install the speed ring to the rear brake drum.
  2. Install the rear brake drum. Refer to Section 4E, Rear Drum Brake.


D107E512
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HYDRAULIC MODULATOR AND UPPER/LOWER MOUNTING BRACKET

Removal Procedure

  1. Disconnect the negative battery cable.
  2. Remove the strut bar from the vehicle. Refer to Section 2C, Front Suspension.
  3. Remove the coolant reservoir. Refer to Section 1D, Engine Cooling.
  4. Remove the hydraulic modulator.


  5. D107E513
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    D107E514
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    D107E515
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    D107E516
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  6. Remove the bolt and the upper mounting bracket.
  7. a. Upper mounting bracket.


    D107E517
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  8. Remove the nuts and the lower mounting bracket.
  9. a. Lower mounting bracket.


D17E519A
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Installation Procedure

  1. Install the lower mounting bracket with the nuts.
  2. Tighten
    Tighten the lower mounting bracket-to-fender nuts to 10 N•m (89 lb-in).
    Tighten the lower mounting bracket-to-dash panel nut to 12 N•m (106 lb-in).



    D17E518A
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  3. Install the upper mounting bracket with the bolt.
  4. Tighten
    Tighten the bolt to 13 N•m (11.5 lb-in).



    D17E520A
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  5. Install the hydraulic modulator to the lower bracket.
  6. Install the upper mounting bracket nuts.
  7. Tighten
    Tighten the upper mounting bracket nuts to 16 N•m (12 lb-in).

  8. Connect the electrical connector to the connector holder.


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  10. Connect the wheel speed sensor electrical connector.
  11. Connect the EBCM connector.
  12. Install the brake pipes to the hydraulic modulator with the fittings.
  13. Tighten
    Tighten the brake pipe fittings to 16 N•m (12 lb-ft).

  14. Install the coolant reservoir. Refer to Section 1D, Engine Cooling.
  15. Install the strut bar. Refer to Section 2C, Front Suspension.
  16. Connect the negative battery cable.


D107E522
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EBCM (ELECTRONIC BRAKE CONTROL MODULE)

Removal Procedure

  1. Disconnect the negative battery cable.
  2. Remove the canister. Refer to 1F, Engine Controls.
  3. Remove the EBCM.


D107E523
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Installation Procedure

  1. Install the EBCM with the retaining screws.


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  3. Connect the EBCM electrical connector.
  4. a. EBCM electrical connector.
  5. Install the canister. Refer to 1F, Engine Control.
  6. Connect the negative battery cable.

SPECIFICATIONS

GENERAL SPECIFICATIONS

Application
Unit
Description
Antilock Brake System (ABS) Mode
-
4 Channel 4 Sensor
ABS Main Relay Operation Voltage
V
9.5 - 16
Front Wheel Speed Sensor :
-
-
Resistance
1,000 - 1,500
Insulation Resistance
Air Gap
mm (in.)
0.4± 0.1 (0.0157 ±0.0039)
Alternating Current Voltage
V
More Than 0.1
Rear Wheel Speed Sensor :
-
-
    Resistance
1,000 - 1,500
;Insulation Resistance
;Air Gap
mm (in.)
0.4 ±0.1 (0.0157± 0.0039)
;Alternating Current Voltage
V
More Than 0.1
Tooth Volume of the Speed Ring
EA
40
Oil
-
DOT 3 or DOT 4
Capacity
L (qt.)
0.45 (0.48)

FASTENER TIGHTENING SPECIFICATIONS

Application
N3m
Lb-Ft
Lb-In
Front Wheel Speed Sensor Bolt
23
17
-
Rear Wheel Speed Sensor Bolt
11
-
97
Hydraulic Modulator Upper Mounting Bracket Nuts
16
12
-
Hydraulic Modulator Bolt
13
-
115
Hydraulic Modulator Lower Mounting Bracket Nuts (Dash Panel)
12
-
106
Hydraulic Modulator Lower Mounting Bracket Nut (Fender)
10
-
89
Hydraulic Modulator Brake Pipe Fitting
16
12
-

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS TABLE


D102F101
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Scan Tool

SCHEMATIC AND ROUTING DIAGRAMS

ABS CIRCUIT (FENIX 5MR)


D17E201B
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ABS CIRCUIT (SIRIUS D3)


D17E201S
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D17E202B
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ABS BLOCK DIAGRAM


D17E203B
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