BENDIX M-21-M-22 ANTILOCK MOD ASSY Spezifikationen Seite 47
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4 Component Replacement
43
Meritor WABCO Maintenance Manual MM-0112 (Revised 05-13)
Figure 4.12
6. Connect the supply air line to the supply port on the adapter.
7. Connect the treadle air line to the control port on the solenoid
valve. Place a wrench on the adapter to prevent the control port
from twisting. Tighten the fitting to 15 ft-lb (20 N폷m). Do not
over tighten.
@
8. Attach the wiring connector to the solenoid valve. Hand tighten
only.
9. Remove the blocks and stands.
10. Test the installation.
Checking the Installation
1. Start the vehicle.
2. Fully charge the reservoirs with air. Shut off the vehicle.
3. Apply the brakes.
4. Listen for air leaks at all valves.
5. Drive the vehicle. Verify that the ABS indicator lamp operates
correctly.
Electronic Control Unit (ECU)
Removal
1. Turn the ignition switch to the OFF position. Apply the parking
brake.
2. Place blocks under the front and rear tires to prevent the
vehicle from moving.
3. Disconnect the wiring harness connectors from the ECU.
4. Remove the mounting hardware. Remove the ECU.
Figure 4.13.
Figure 4.13
Installation
1. Install the ECU using the manufacturer’s mounting hardware.
Tighten the hardware per the manufacturer’s recommendation.
2. Install the wiring harness connectors to the ECU.
3. Remove the blocks.
4. Test the installation.
NOTE: If ECU has roll stability control (RSC), mounting of the
ECU is crucial for proper operation due to internal
accelerometer. Note the location installation of the ECU before
removal. After installing ECU, verify the ECU is properly leveled
and securely mounted on the right location as per OEM specs.
See Section 2 RSC components for further information.
Testing the Installation
To test the ECU installation:
1. Turn the ignition ON and verify that the ABS self test and ABS
light comes on and goes off.
앫 Wheel speed related faults require a vehicle speed over 4
mph before the ABS light turns off and the code clears.
2. Use TOOLBOX™ Software to verify system has no active
faults.
앫 ECUs with Electronic Stability Control (ESC) will require
system to be calibrated whenever a component has been
replaced.
Figure 4.12
1002045a
MOUNTING BOLTS
4-5 LB-FT (6-8 N•m)
O-RING
(INSTALLED)
SUPPLY
PORT
ATC VALVE
AND ADAPTER
CONTROL
PORT
ABS VALVE
PACKAGE
Figure 4.13
UNIVERSAL
ECU
FRAME-MOUNTED
ECU
BASIC
ECU
4003974a
- For E Version ECUs 1
- 12-Volt and 24-Volt Systems 1
- Contents 3
- 1 Introduction 5
- System Components 5
- ATC Components 10
- ATC Switch 10
- XX Orientation 11
- ZZ Orientation 12
- YY Orientation 12
- ESC Components 13
- Figure 2.8 14
- Hill Start Aid (HSA) 15
- Maintenance Information 16
- ABS Indicator Lamp 16
- Diagnostics 17
- TOOLBOX™ Software Diagnostics 17
- 4010611a 18
- 4010612a 18
- 4010613a 18
- 4010614a 18
- Definitions 19
- Clear Mode 20
- Blink Code Illustrations 22
- Blink Code Conditions 23
- Blink Code Identification 24
- Wheel Speed Sensor Testing 25
- Modulator Valve Testing 26
- BAYONET-STYLE CONNECTOR 27
- OPEN-STYLE CONNECTOR 27
- CAB MOUNT ECU’S: 28
- Figure 3.18 29
- 4010617a 30
- 4010619a 30
- 4010620a 30
- Electrical Checks 31
- Software 32
- Figure 3.26 or Figure 3.27 33
- PRESSURE SENSOR CONNECTOR 34
- ESC CAN Network Testing 35
- ESC Module Testing 35
- ESC Module Mounting 36
- ECU Circuit Testing 38
- Figure 3.44 40
- Figure 3.45 40
- 4 Component Replacement 41
- Hazard Alert Messages 41
- 472 500 30. 0 44
- MADE IN GERMANY 44
- 001 20/98 44
- DO NOT MOVE OR RELOCATE 49
- 6S/6M ABS 51
- 4S/4M ABS/ATC 51
- 4S/4M RSC/ATC 52
- 4S/4M ESC/ATC 52
- ECU Connector Pin Assignments 53
- ECU (Frame-mounted) 54
- 4004027d 55
- 4004030i 56
- Figure 6.8 57
- Figure 6.9 58
- Figure 6.10 59
- Figure 6.11 60
- Figure 6.12 61
- Figure 6.13 62
- Figure 6.14 63
- 7 SPN SID FMI Fault Codes 64
- SPN SID FMI Fault Code List 64
- 4010669a 88
- 4010670a 88
- 4010671a 88
- 8 Appendix I 89
- 9 Appendix II 91
- Troy, MI 48084-7121 98
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