Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1999 Mercedes Benz ML430FACTORY OEM SERVICE PROCEDURE
Retrieving Codes
Using Adaptor (965 589 00 40 00), Connect Hand Held Tester (965 589 00 01 00) to data link connector. Follow manufacturers instructions to retrieve codes from convenience feature control module. Record DTCs and perform appropriate system test. See DTC IDENTIFICATION CHART table.
DIAGNOSTIC TROUBLE CODE LIST
| DTC Code | Possible Cause | Perform System Test |
| C1000 | Traction System Control Module | Using HHT, check appropriate Traction Control Module (ABS, ETS or ASR V). Replace as necessary. |
| C1010 | Battery Voltage Low | TEST 1 |
| C1011 | ASR/ETS/ESP Circuit Open Or Shorted | TEST 2 & TEST 5 5 |
| C1012 | Battery Voltage High | TEST 1 |
| C1020 | CAN Communication Fault | Check wiring. See WIRING DIAGRAMS |
| C1021 | CAN Communication With EA/CC/ISC Control Module Interrupted | USING HHT, check EA/CC/ISC control module DTCs. Repair as necessary. |
| C1024 | CAN communication With Engine Control Module Interrupted | Using HHT, check ECM (ME-SFI Base Module) DTCs. Repair as necessary. |
| C1100 | Left Front Axle VSS Circuit Fault | TEST 11 |
| C1101 | Right Front Axle VSS Circuit Fault | TEST 13 |
| C1102 | ETS/ASR, ABS Left Axle VSS Circuit Fault | TEST 15 Or TEST 16 If equipped with ETS/ASR V, Perform TEST 16: LEFT REAR AXLE VSS SENSOR INTERNAL/INSULATION RESISTANCE (ASR V OR ETS). |
| C1103 | Right Rear Axle VSS Circuit Fault | TEST 19 |
| C1104 | Left Front Axle VSS Circuit Fault | TEST 11 |
| C1105 | Right Front Axle VSS Circuit Fault | TEST 13 |
| C1106 | ETS/ASR, ABS Rear Axle VSS Circuit Fault | TEST 15 Or TEST 16 If equipped with ETS/ASR V, Perform TEST 16: LEFT REAR AXLE VSS SENSOR INTERNAL/INSULATION RESISTANCE (ASR V OR ETS). |
| C1107 | Right Rear Axle VSS Circuit Fault | TEST 19 |
| C1142 | ABS Lateral Acceleration Sensor Open/Shorted | TEST 8 |
| C1143 | ABS Lateral Acceleration Sensor Implausible | TEST 8 |
| C1200 | Stop Lamp Switch Open/Shorted/Implausible | Check wiring. See WIRING DIAGRAMS |
| C1300 | Left Front Axle Solenoid Valve (Hold) Open/Shorted | TEST 21 |
| C1301 | Left Front Axle Solenoid Valve (Release) Open/Shorted | TEST 22 |
| C1302 | Right Front Axle Solenoid Valve (Hold) Open/Shorted | TEST 23 |
| C1303 | Right Front Axle Solenoid Valve (Release) Open/Shorted | TEST 24 |
| C1304 | Left Rear Axle Solenoid Valve (Hold) Open/Shorted | TEST 25 & TEST 26 |
| C1305 | Left Rear Axle Solenoid Valve (Release) Open/Shorted | TEST 27 & TEST 28 |
| C1306 | Right Rear Axle Solenoid Valve (Hold) Open/Shorted | TEST 29 |
| C1307 | Right Rear Axle Solenoid Valve (Release) Open/Shorted | TEST 30 |
| C1311 | Switchover Solenoid Valve Circuit Open/Shorted | TEST 31 |
| C1312 | Master Brake Cylinder Switchover Valve | TEST 9 |
| C1313 | Solenoid Valve Relay | Using HHT, check appropriate Traction Control Module (ABS, ETS or ASR V). Replace as necessary. |
| C1314 | Solenoid Valve Relay Voltage Supply | TEST 2 & TEST 5 |
| C1315 | Inlet Solenoid Valve | TEST 32 |
| C1401 | High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off | TEST 6 |
| C1500 | VSS Sensor Implausible | TEST 11 , TEST 13 , TEST 15 , TEST 16 & TEST 19. |
| C1501 | SPS P-Valve | TEST 7 |
| C1511 | ETS/SPS Control Module Not Version Coded | Using HHT, check ETE/SPS control module version coding. Replace as necessary. |
| C1512 | Brakes Overheated | Brakes momentarily overloaded. Using HHT, check and clear DTC. |
| C1513 | ASR/SPS Or ECM (ME-SFI) Version Coding Incorrect | Using HHT, check ASR V/SPS, ECM (ME-SFI) control modules version coding. Replace as necessary. |
| C1514 | SPS P-Valve Adjustment Data | Using HHT, check appropriate Traction Control Module (ABS, ETS or ASR V). Replace as necessary. TEST 7 |
| C1515 | Version Coding SPS | Using HHT, check appropriate Traction Control Module (ABS, ETS or ASR V). Replace as necessary. |
| C1600 | Temperature After Engine Is Turned Off | Using HHT, check appropriate Traction Control Module (ABS, ETS or ASR V). Replace as necessary. |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.