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Home >> Saab >> 1996 >> 9000 CS L4-2290cc 2.3L DOHC Turbo EFI >> Repair and Diagnosis >> Brakes and Traction Control >> Antilock Brakes / Traction Control Systems >> Hydraulic Control Assembly - Antilock Brakes >> Service and Repair >> With Mark IV ABS System

With Mark IV ABS System







WARNING: Before starting work, thoroughly clean the unit, connections and surrounding surfaces to prevent dirt getting into the hydraulics.

Removal
1. Disconnect the battery leads and the bolt (1) securing the battery to the tray.
- Remove the battery
- Also unplug the main fuse box (2) by lifting ft.
2. Disconnect the battery tray by undoing the four screws (3) and the four bolts (4).
3. Unplug the connector (5) from the Electronic Control Unit (ECU) on the side of the battery tray and unplug the Antilock Brake System (ABS) wiring loom clip.
4. Remove the throttle cable from the throttle housing by disconnecting the two clips (6).
5. Pull the ABS main fuse box (7) and brake fluid reservoir (8) out of their brackets.
6. Use brake bleeder unit part No. 88 19 096 to siphon the brake fluid out of the reservoir.
- Manual cars: Disconnect the hose for the clutch cylinder from the brake fluid reservoir.
7. Mark and unscrew the four brake pipes (9).
- Plug the ends of the valve block (10) and brake pipes.
8. Disconnect the three connectors (11) and the connector (12) of the travel sensor.
9. Undo the two nuts (13) holding the hydraulic unit.
10. Remove the unit.

Installation





1. Tighten the two hydraulic unit retaining nuts (13).
2. Remove the plugs (10) from the valve block and brake pipes.
- Attach the brake pipes (9) to the valve block.
3. Install the three connectors (11) and the connector of the travel sensor (12).
4. Plug in connector (5) for the ABS ECU on the loosened battery tray.
5. Install the battery tray by tightening the four screws (4) and the four bolts (3).
- Attach the ABS wiring loom to the battery tray.
6. Install the battery and tighten the nut (1) holding the battery bracket.
7. Press the main fuse box (2) firmly into its bracket.
8. Install the throttle cable and the two clips (6).
9. Install the hose for the clutch cylinder on the brake fluid reservoir (manual cars only).
10. Install the ABS main fuse box and brake fluid reservoir.
- Top up with DOT 4 brake fluid.
11. Bleed the brake system. (if the hydraulic unit has been changed:
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