Mercedes-Benz E-class W124/S124/C124/A124 (1992-1997) nca Wiring diagrams

ABS/ASR CONTROL MODULE (RIGHT REAR OF OF ENGINE COMPT) ASR FUNCTION INDICATOR ASR WARNING IND. ABS WARNING IND. BASE MODULE (RIGHT SIDE OF COMPONENT COMPARTMENT, IN MODULE BOX) BLK WIRE BLK/GRN WIRE BLK/GRN/VIO WIRE BLK/RED/WHT WIRE BLK/WHT WIRE BLK/YEL WIRE BLK/YEL/RED WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH (ON MASTER CYLINDER) BRAKE IND BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE CHARGING SYSTEM COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE/IDLE SPEED CONTROL MODULE ENGINE COMPT) EXTERIOR LAMP FAILURE MONITORING UNIT FUSE 5 FUSE 7 FUSE/ RELAY BOX (LEFT SIDE OF COMPONENT COMPARTMENT) GRN WIRE GRY WIRE GRY/RED WIRE HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED LEFT REAR WHEEL SPEED NCA WIRE PARK BRAKE SWITCH (AT PARK BRAKE RELEASE) PNK WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RHEOSTAT RIGHT FRONT WHEEL SPEED SNOW CHAIN LOGIC SWITCH (ON CENTER CONSOLE) SENSOR RIGHT REAR WHEEL SPEED SENSOR SEPARATION DIODE STOP LIGHT SWITCH (TOP OF BRAKE PEDAL SUPPORT) TEST CONNECTION FOR DIAGNOSIS USA CAN VIO WIRE WHT WIRE WHT/PNK WIRE YEL WIRE YEL/RED WIRE

ABS/ASR CONTROL UNIT (RIGHT REAR OF ENGINE COMPARTMENT) ABS/ASR HYDRAULIC UNIT BLK WIRE BLU WIRE BRN WIRE BRN/YEL WIRE COPPER BRAID GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES TERMINAL BLOCK (RIGHT SIDE OF COMPONENT COMPARTMENT) LF SOL VALVE LR SOL VALVE RR SOL VALVE NCA WIRE PRESSURE SWITCH PRESSURIZING PUMP (BELOW MASTER CYLINDER) RED WIRE RED/WHT WIRE RETURN/ PRESSURE PUMP MOTOR RETURN/PRESSURE PUMP RELAY RF SOL VALVE SOLENOID VALVE RELAY SWITCH- OVER SOL VALVE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

26 (OR 16) 1 A/C PUSHBUTTON CONTROL UNIT ANTI-THEFT SYSTEM BASE MODULE (RIGHT SIDE OF COMPONENT COMPARTMENT, IN MODULE BOX) BLK WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CALIFORNIA ONLY CAN CAN H+ CAN CAN L- CAN H+ 3 13 1 CAN L CAN L- 2 9 CAN L- CAN CAN-H CHECK ENGINE WARNING LAMP (MIL) DATA LINK CONNECTOR (IN MODULE BOX, ON RIGHT REAR OF ENGINE COMPT) DI CONTROL MODULE DIAGNOGSTIC MODULE (BEHIND DASH) ENGINE CONTROLS SYSTEM FUEL PUMP RELAY MODULE FUSE, RELAY BOX (ON LEFT REAR CORNER OF ENGINE COMPT) FUSE 9 GRN WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES INFRARED REMOTE CONTROL MODULE INSTRUMENT CLUSTER NCA WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE SRS CONTROL MODULE (UNDER CENTER CONSOLE) STARTER RELAY MODULE WHT WIRE YEL/RED WIRE YEL/WHT WIRE

ANTI-THEFT SYSTEM ASHTRAY ILLUMINATION AUTOMATIC ANTENNA BLK/RED/VIO WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/GRY/BLK WIRE BRN/GRY/RED WIRE BRN/GRY/WHT WIRE BRN/YEL WIRE CF CONTROL MODULE CONVENIENCE RELAY DOME LAMP DOME/READING LAMPS EXTERIOR LAMP FAILURE MONITORING UNIT (FUSE/RELAY BOX) EXTERIOR LAMP SWITCH FROM TERMINAL FUSE FUSE 5 FUSE 9 FUSE/ RELAY BOX FUSE/RELAY BOX FUSE 3 GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE HEAD LH HEAD HOT AT ALL TIMES HOT AT ALL TIMES HOT IN OFF, ACC HOT IN RUN OR START ILLUMINATION INSTRUMENT CLUSTER LEFT FRONT DOOR SWITCH LEFT FRONT EXIT LAMP ANTI- THEFT ALARM CONTROL UNIT LEFT REAR DOOR SWITCH LEFT REAR EXIT LAMP REAR DOME LAMP SWITCH NCA WIRE OFF OFF DR OFF OFF OFF PARK RH POWER SEAT RELAY MODULE RADIO READING LAMP REAR DOME LAMP RED WIRE RED/WHT WIRE RHEOSTAT RIGHT AIR OUT- LET ILLUMINATION RIGHT FRONT DOOR SWITCH RIGHT FRONT EXIT LAMP RIGHT REAR DOOR SWITCH RIGHT REAR EXIT LAMP SEAT BELT INDICATORS SEAT BELT WARNING MODULE TEMP DISPLAY TO HAZARD FLASHER SWITCH (DIAGRAM 2 OF 2) TRUNK LAMP TRUNK LAMP SWITCH WARNING MODULE WHT WIRE YEL WIRE

1-8 9 10 ANTENNA AUTOMATIC ANTENNA BLK WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CD CHANGER CTEL TRANSMITTER/ RECEIVER (W/ CTEL ONLY) FUSE FUSE 3 FUSE 9 FUSE C FUSE/ RELAY BOX GRY WIRE GRY/BLK WIRE GRY/RED WIRE HALL-EFFECT SENSOR MULTIPOINT CONNECTOR HALL-EFFECT SPEED SENSOR HOT AT ALL TIMES HOT IN ACC, RUN OR START LEFT FRONT DOOR SPEAKER LEFT FRONT SPEAKER LEFT REAR SPEAKER GROUP LEFT SPEAKERS AUDIO POWER AMPLIFIER NCA WIRE RADIO RED WIRE RED/VIO WIRE RED/YEL WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT SPEAKER RIGHT REAR SPEAKER GROUP RIGHT SPEAKERS AUDIO POWER AMPLIFIER WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE

BLK WIRE BLK/YEL WIRE BLK/YEL/GRY WIRE BLK/YEL/VIO WIRE BLU/GRY WIRE BRN WIRE COMBINATION SWITCH CONTIN- UOUS EXTERIOR LAMP MONITORING UNIT (REAR OF FUSE BOX) FUSE 1 FUSE/ RELAY BOX (LEFT SIDE OF COMPONENT COMPARTMENT) GRY/YEL WIRE HOT IN ACCY, RUN, OR START ILLUMINATION (INSTRUMENT PANEL) INTER- VAL INTERVAL WIPER RELAY (LEFT CORNER OF TAILGATE, BEHIND PANEL) NCA WIRE REAR WINDOW WASHER PUMP REAR WINDOW WASHER SWITCH REAR WINDOW WIPER MOTOR REAR WINDOW WIPER SWITCH RETURN SOLID STATE STARTER LOCK- OUT BACK-UP LAMP SWITCH SWEEP SWEEP PARK VIO/YEL WIRE WASH WASH OFF OFF WIPER MOTOR (CENTER FRONT OF COWL) YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

BLK/RED WIRE BLK/RED/VIO WIRE BRN WIRE BRN/GRY WIRE BRN/GRY/RED WIRE BRN/YEL (OR BLU) WIRE CONVENIENCE RELAY DOME/READING LAMPS DRIVER'S SEAT BELT SWITCH (IN DRIVER'S SEAT BELT BUCKLE) EXTERIOR LAMP FAILURE MONITORING UNIT (FUSE/RELAY BOX) EXTERIOR LAMP SWITCH (PIN 4) FUSE FUSE 5 FUSE/ RELAY BOX FUSE 9 GRN WIRE GRN/BLK WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FRONT DOOR SWITCH NCA WIRE PASSIVE RESTRAINTS SYSTEM POWER SEATS SYSTEM RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR SWITCH SEAT BELT IND SEAT BELT WARNING RELAY WARNING BUZZER SWITCH (PART OF IGNITION SWITCH) WARNING MODULE (BEHIND RIGHT SIDE OF INSTRUMENT CLUSTER) YEL WIRE

BLK/RED/VIO WIRE BRN WIRE BRN/GRY WIRE BRN/GRY/RED WIRE CONVENIENCE RELAY DOME/READING LAMPS DRIVER'S SEAT BELT SWITCH (IN DRIVER'S SEAT BELT BUCKLE) EXTERIOR LAMP FAILURE MONITORING UNIT (FUSE/RELAY BOX) EXTERIOR LAMP SWITCH (PIN 4) FUSE 5 FUSE/ RELAY BOX FUSE 9 GRN WIRE GRN/BLK WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FRONT DOOR SWITCH NCA WIRE POWER SEATS SYSTEM RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR SWITCH SEAT BELT IND WARNING BUZZER SWITCH (PART OF IGNITION SWITCH) WARNING MODULE (BEHIND RIGHT SIDE OF INSTRUMENT CLUSTER)

"B" ENGAGEMENT SWITCH ACCY BACK-UP LAMPS BASE MODULE BATTERY (+) FP RELAY MODULE BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BOX BRACKET) BRAKE LAMP SWITCH BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR COIL WIRE COMPUTER DATA LINES CRANKSHAFT POSITION SENSOR DATA LINK CONNECTOR DI CONTROL MODULE DIAGNOSTIC MODULE (PIN 4) EA/CC/ISC CONTROL MODULE FUEL PUMP FUSE 6 FUSE 7 FUSE 9 FUSE/ RELAY BOX GRN WIRE GRN/BRN WIRE GRN/WHT WIRE HOT AT ALL TIMES IGNITION COIL 1 (RIGHT BANK) (LEFT FRONT WHEEL WELL) IGNITION COIL 2 (LEFT BANK) IGNITION SWITCH KICKDOWN SWITCH KICKDOWN VALVE KNOCK SENSOR 1 (RIGHT) KNOCK SENSOR 2 (LEFT) LH DISTRIBUTOR 2 3 LH-SFI CONTROL MODULE LOCK MODULE NCA WIRE OVERLOAD PROTECTION SWITCH PNK WIRE PNK/BLK WIRE PNK/RED WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE REFERENCE RESISTOR (DI) RH DISTRIBUTOR 1 4 RUN WIRE SHIELD SHIELD 30 31 28 29 SPARK PLUGS STARTER LOCK-OUT/ BACKUP LAMP SWITCH STARTER LOCK-OUT/ RELAY MODULE FUSE/ RELAY BOX STARTING SYSTEM (STARTER) TACHOMETER TERMINAL BLOCK TRANSMISSION VIO WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE WIPER/ WASHERS SYSTEM YEL WIRE YEL/WHT/GRN WIRE