Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC

Possible Cause

Test step/Remedy ⁽¹⁾

C 1000

ESP/SPS Control Module (N47-5)

Replace control module

C 1010

Battery Voltage Too Low Circuit 87

Test Step 1.0-1.2

C 1011

ASR/ETS/ESP Hydraulic Unit Solenoid Valve Voltage Supply Open/Short Circuit

Step 2.0, see Test Step 2.0-5.0 and 22, see Test Step 20.0-22.0

C 1020

CAN Communication Faulty In General

Test Step 30.0-30.2
Check version coding of ME & ETC control modules, using HHT.

C 1022

CAN Communication With Engine Control Module (ME-SFI, N30/10) Or Right Engine Control Module (ME-SFI, N3/12) Interrupted

Test Step 30.0-30.2
Read out DTC (ME-SFI) memory. Check version coding of ME control module, using HHT. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

C 1023

CAN Communication With Left Engine Control Module (ME-SFI, N3/11) Interrupted

Test Step 30.0-30.2
Read out DTC (ME-SFI) memory. Check version coding of ME control module, using HHT. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

C 1024

CAN Communication With Trans. Control Module (N15/3) Interrupted

Check Transmission Control Module, section 12. Check version coding of ME control module, using HHT.

C 1100

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

Step 13, see Test Step 12.0-13.2

C 1101

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

Step 15, see Test Step 14.0-15.2

C 1102

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

Step 17, see Test Step 16.0-17.2

C 1103

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

Step 19, see Test Step 18.0-19.2

C 1120

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

Step 28, see Test Step 26.1-28.0

C 1140

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

Step 19, see Test Step 28.1-29.2

C 1141

ESP Brake Pressure Sensor (B34)

Step 9, see Test Step 8.1-11.1
Step 27, see Test Step 26.1-28.0

C 1142

ABS Lateral Acceleration Sensor (B24/2) Open/Short Circuit

Step 26, see Test Step 24.3-26.0

C 1200

Stop Lamp Switch (4 Pole) (S9/1) Open/Short Circuit Or Implausible

Test Step 6.0-8.0

C 1300

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

Test Step 23.0-23.3

C 1301

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

Test Step 23.0-23.3

C 1302

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

Test Step 23.0-23.3

C 1303

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

Test Step 23.0-23.3

C 1304

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

Test Step 23.0-23.3

C 1305

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

Test Step 23.0-23.3

C 1306

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

Test Step 23.0-23.3

C 1307

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

Test Step 23.0-23.3

C 1308

Front Axle Precharge Solenoid Valve (A7/3y16) Open/Short Circuit

Step 24, see Test Step 23.8-24.2

C 1309

Rear Axle Precharge Solenoid Valve (A7/3y17) Open/Short Circuit

Step 24, see Test Step 23.8-24.2

C 1310

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

Step 24, see Test Step 23.8-24.2

C 1311

Rear Axle Switchover (A7/3y19) open Short Circuit

Step 24, see Test Step 23.8-24.2

C 1312

Master Brake Cylinder Switchover Valve (Y61)

Step 8, see Test Step 6.0-8.0

C 1313

ASR/ETS/ESP Hydraulic Unit Solenoid Valve Relay (A7/3k1)

Replace control module (N47-5)

C 1400

ASR/ESP Charging Pump (M15) Open/Short Circuit

Step 9, see Test Step 8.1-11.1

C 1401

ASR/ETS/ESP Hydraulic Unit High Pressure/Return Pump (A7/3m1) Open/Short Circuit Or Does Not Turn Off

Steps 10 and 11, see Test Step 8.1-11.1

C 1500

VSS (L6/1/2/3/4) Implausible ⁽²⁾

Steps 13, 15, 17 and 19, see Test Step 12.0-13.2 , Test Step 14.0-15.2 , Test Step 16.0-17.2 and Test Step 18.0-19.2

C 1501

SPS "P" Valve (Y10)

Test Step 12.0-13.2

C 1503

Pressure Transfer Piston Unit

Check condition of rear brake pads, Pressure transfer piston unit

C 1504

System Has Turned Off

Steering angle sensor (N49) not initialized. Step 29, see Test Step 28.1-29.2
Low voltage to ESP yaw rate sensor (N64). Step 28, see Test Step 26.1-28.0

⁽¹⁾	Observe Preparation for Test, see PREPARATION FOR TESTS (SECTION 22) .

⁽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 brakes or driving vehicle on a dynamometer, erase DTC.