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Home >> Mercedes Benz >> 1993 >> 300D >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnosis & Testing (300SD) >> Fault Code Identification

Fault Code Identification

NOTE: System is tested as an integrated unit. To perform tests on specific circuits and/or components, Contact Box (140 589 06 63 00), Contact Module (140 589 04 63 00), 126-pin Socket Box (129 589 00 21 00) and digital volt/ohmmeter are required.
NOTE: Specific testing of circuits and/or components is not available.
ABS CONTROL UNIT FAULT CODE IDENTIFICATION

Fault Code Malfunctioning Component/System
1 (1)
2 Left Front Wheel Speed Sensor
3 Right Front Wheel Speed Sensor
4 Rear Axle Speed Sensor
6 Left Front Axle Solenoid Valve
7 Right Front Axle Solenoid Valve
8 Rear Axle Solenoid Valve
10 Return/Pressure Pump Motor Or Return/Pressure Pump Relay
11 Solenoid Valve Relay
12 Master Cylinder Switchover Valve
13 Stoplight Switch
14 ABS/ASR Lateral Acceleration Sensor
15 ABS Control Unit
16 Speed Sensors Wrong Or Dirty/Damaged Tooth Rotor
17 Low Voltage At Solenoid Valve Relay
(1) No faults in system.
BASE MODULE FAULT CODE IDENTIFICATION

Fault Code Malfunctioning Component/System
1 (1)
5 Maximum Permissible Temperature In Module Box Exceeded
6 A/C Compressor Electromagnetic Clutch Blocked
7 Poly-V-Belt Slipping
9 Voltage Supply For LH-SFI Control Unit Interrupted
10 Voltage Supply For LH-SFI Control Unit Interrupted Or Voltage Supply For Fuel Injectors Interrupted
11 Voltage Supply For Accessory Equipment Control Units Interrupted
12 Voltage Supply For ABS Control Unit Or ABS/ASR Control Unit Interrupted
15 Voltage Supply For Automatic Transmission Kickdown Valve Interrupted
16 Voltage Supply For A/C Compressor Electromagnetic Clutch Interrupted
17 Voltage Supply For Module Box Blower Motor Interrupted
(1) No faults in system.