Diagnostic Trouble Code Definitions (Section 12)

WARNING: This page does not describe the selected car, but rather 76 other vehicles, including the 2002 Mercedes-Benz SL600, 2002 Mercedes-Benz SL500, 2002 Mercedes-Benz E55, 2002 Mercedes-Benz E430, and 2002 Mercedes-Benz E320. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For aid in using diagnostic charts, see USING DIAGNOSTIC CHARTS .

DIAGNOSTIC TROUBLE CODE LIST

DTC

Possible Cause

Test step/Remedy ⁽¹⁾

No Fault In System

In case of complaint: ESP and SPS, perform entire test. See BRAKE ASSIST (BAS), ELECTRONIC STABILITY PROGRAM (ESP) & SPEED SENSITIVE POWER STEERING (SPS) ELECTRICAL TESTS PROGRAM (SECTION 23) .

C 1000

ESP/SPS Control Module (N47-5) ⁽³⁾

Replace N47-5

C 1003

ESP/SPS Control Module (N47-5) BAS Processor Faulty ⁽³⁾

Replace N47-5

C 1010

Battery Voltage Too Low Circuit 87

Step 1, see Test Step 1.0-5.0

C 1011

Solenoid Valve Voltage Supply Open/Short Circuit

Steps 2 and 17, see Test Step 1.0-5.0 and Test Step 13.1-18.0

C 1012

Battery Voltage Too High Circuit 87

Step 1, see Test Step 1.0-5.0

C 1020

CAN Communication Faulty In General

Step 36, see Test Step 35.0-36.2

C 1022

CAN Communication With Right Engine Control Module (ME-SFI, N3/12) Interrupted

Step 36, see Test Step 35.0-36.2
Read DTC (ME-SFI) memory, Check version coding of ME control Module, using HHT

C 1025

CAN Communication With BAS Control Module (N48) Interrupted ⁽³⁾

Replace N47-5

C 1100

Left Front Axle VSS Sensor (L6/1) Open Circuit, Loose Contact Or Implausible ⁽²⁾

Step 8, see Test Step 6.0-9.1

C 1101

Right Front Axle VSS Sensor (L6/2) Open Circuit, Loose Contact Or Implausible ⁽²⁾

Step 10, see Test Step 10.0-13.0

C 1102

Left Rear Axle VSS Sensor (L6/3) Open Circuit, Loose Contact Or Implausible ⁽²⁾

Step 12, see Test Step 10.0-13.0

C 1103

Right Rear Axle VSS Sensor (L6/4) Open Circuit, Loose Contact Or Implausible ⁽²⁾

Step 14, see Test Step 13.1-18.0

C 1120

ESP Yaw Sensor (N64) Single Wire Open/Short Circuit Or Reference Wire Open/Short Circuit

Step 32, see Test Step 28.0-34.1

C 1140

Steering Angle Sensor (N49) Open/Short Circuit Or Plausibility

Step 6, see Test Step 6.0-9.1
Turn steering wheel from left to right stops.

C 1141

ESP Brake Pressure Sensor (B34) Open/Short Circuit Or Plausibility

Step 31, see Test Step 28.0-34.1

C 1142

ABS Lateral Acceleration Sensor (B24/2) Open/Short Circuit, Voltage Supply Or Plausibility

Step 30, see Test Step 28.0-34.1

C 1149

ESP Brake Pressure Sensor (B34) Voltage Supply
ABS Lateral Acceleration Sensor (B24/2) Voltage Supply
Membrane Travel Sensor (A7/7b1) Voltage Supply

Step 31, see Test Step 28.0-34.1 , N47-5
Step 30, see Test Step 28.0-34.1 , N47-5
Step 34, see Test Step 28.0-34.1 , N47-5

C 1200

Stop Lamp Switch (S9/1) Plausibility Of Membrane Travel Comparison Or Plausibility

Wiring, S9/1

C 1201

Release Switch (A7/7s1) (BAS) Open/Short Circuit, Plausibility, Redundancies Or Switch Over Time

Wiring, A7/7s1 ⁽³⁾

C 1204

Membrane Travel Sensor (A7/7b1) (BAS), Membrane Speed, Plausibility, Open Circuit Or Wiring Has A Short To Ground

Step 34, see Test Step 28.0-34.1

C 1300

Left Front Axle Solenoid Valve (Hold) (A7/3y6) Open/Short Circuit

Step 18, see Test Step 13.1-18.0

C 1301

Left Front Axle Solenoid Valve (Release) (A7/3y7) Open/Short Circuit

Step 19, see Test Step 19.0-27.0

C 1302

Right Front Axle Solenoid Valve (Hold) (A7/3y8) Open/Short Circuit

Step 20, see Test Step 19.0-27.0

C 1303

Right Front Axle Solenoid Valve (Release) (A7/3y9) Open/Short Circuit

Step 21, see Test Step 19.0-27.0

C 1304

Left Rear Axle Solenoid Valve (Hold) (A7/3y10) Open/Short Circuit

Step 22, see Test Step 19.0-27.0

C 1305

Left Rear Axle Solenoid Valve (Release) (A7/3y11) Open/Short Circuit

Step 23, see Test Step 19.0-27.0

C 1306

Right Rear Axle Solenoid Valve (Hold) (A7/3y12) Open/Short Circuit

Step 24, see Test Step 19.0-27.0

C 1307

Right Rear Axle Solenoid Valve (Release) (A7/3y13) Open/Short Circuit

Step 25, see Test Step 19.0-27.0

C 1308

Front Axle Inlet Solenoid Valve (A7/3y22) Open/Short Circuit

Step 26, see Test Step 19.0-27.0

C 1309

Rear Axle Inlet Solenoid Valve (A7/3y23) Open/Short Circuit

Step 27, see Test Step 19.0-27.0

C 1310

Front Axle Switchover Valve (A7/3y18) Open/Short Circuit

Step 28, see Test Step 28.0-34.1

C 1311

Rear Axle Switchover Valve (A7/3y19) Open/Short Circuit

Step 29, see Test Step 28.0-34.1

C 1332

Solenoid Valve (BAS) (A7/7y1) Open/Short Circuit

Step 35, see Test Step 35.0-36.2

C 1401

High Pressure/Return Pump (A7/3m1) Open/Short Circuit, Does Not Turn Off Or Shuts Off Too Quickly

Step 4, see Test Step 1.0-5.0

C 1406

Brake Booster (BAS) (A7/7) Booster Faulty, Membrane Travel Sensor (BAS) (A7/7b1) Or Solenoid Valve (BAS) (A7/7y1) Are Faulty

A7/7 ⁽³⁾
Step 34, see Test Step 28.0-34.1
Step 35, see Test Step 35.0-36.2

C 1500

VSS (L6/1, L6/2, L6/3, L6/4) Implausible ⁽²⁾

Step 8, see Test Step 6.0-9.1 ; step 10 and 12, see Test Step 10.0-13.0 ; step 14, see Test Step 13.1-18.0

C 1501

SPS "P" Valve (Y10)

Step 5, see Test Step 1.0-5.0

C 1504

System Has Turned Off, Steering Angle Sensor (N49) Initialization Needs To Be Performed
Low Voltage At ESP Yaw Rate Sensor (N64)
ESP Brake Pressure Sensor (B34) Faulty

Turn steering wheel from left to right stops.

Step 32, see Test Step 28.0-34.1
Step 31, see Test Step 28.0-34.1

⁽¹⁾	Observe Preparation for Test, see TEST PREPARATION .

⁽²⁾	Rotor with incorrect tooth count, dirt accumulation on or damage to rotor, incorrect rear axle ratio, wrong wheel or tire size. If DTC appears only after repair work, it may be caused by applying the brakes or driving vehicle on a dynamometer, erase DTC.

⁽³⁾	When replacing any components, perform CONTROL MODULE ADAPTATION under PROGRAMMING.