Mercedes Benz Siemens FTC (722.7)
- Product Code: P349781
- Availability: In Stock
Can be remanufactured
| OBDII | Description | |
| P1840 (2120) | PWM solenoid valve 1 / 4 shift | |
| P1841 (2121) | PWM solenoid valve 3 shift | |
| P1842 (2122) | PWM solenoid valve 2 / 5 / R shift | |
| P1843 | PWM solenoid valve torque convertor lockup clutch | |
| P1844 | PWM shift valve circuit | |
| P1850 (2204) | Transmission RPM sensor Y3/7n1 | |
| P1858 (2227) | Starter lockout contact | |
| P1897 | Control module N15/7 faulty | |
| P1903 | Control module N15/7 faulty |
Remanufacture may be possible
| OBDII | Description | |
| P1895 (200a) | Internal fault in control unit |
This error code will never actually appear independently. Therefore, look carefully at the rest of the error codes to make the correct diagnosis.
| P1709 | Park / Neutral switch | |
| P1756 | Selector lever implausible | |
| P1872 | CAN signal from gear regognition module faulty | |
| P1875 | CAN communication ESP | |
| P2031 | No signal or error signal from control unit N15/5 | |
| P2210 | Selector lever coding is invalid | |
| P2211 | The selector lever is in an intermediate position | |
| P2212 | The selector lever position is implausible | |
| P2318 | Fault in CAN communication with control unit N15/5 | |
| P2333 | The CAN signal from control unit N15/5 | |
| P2338 | The CAN signal from control unit N15/5 | |
| 2310 | CAN communication with TCS failed | |
| 2311 | CAN communication with ECU failed | |
| 2312 | CAN communication with ECU failed | |
| 2315 | CAN communication with instruments failed | |
| 2316 | CAN communication with A/C failed | |
| P240C | The CAN signal for the selector lever position from control unit N15/5 |
These error codes may indicate that the gear selector lever is defective. In many cases, this is also revisable.
If in doubt, please contact our Customer Service.
Cannot be remanufactured
| OBDII | Description | |
| P1884 (2123) | PWM shift valve pressure | |
| P1886 | 1-4 / -3 downshift PWM valve pressure too low OR 2-5 pressure too high | |
| P1887 (2531) | 1-4 or 2-5 shift slide valve jamming in basic position Shift valve pressure to low | |
| P1888 | 1-4 or 2-5 shift slide valve jamming in basic position Shift valve pressure too high | |
| P1889 | 2-5-R downshift PWM valve pressure too low Transmission slipping | |
| P1893 | Pressure too high at regulating valve or solenoid valve 1 / 4 or 3 |
These error codes often indicate mechanical defects. Check the gearbox carefully for wear and/or damage!
- Multiple Gear change errors errors
- P1840 - Valve Y3/7Y1 - PWM Solenoid valve 1/4 shift
- P1841 - Valve Y3/7Y2 - PWM Solenoid valve 3 shift
- P1842 - Valve Y3/7Y3 - PWM Solenoid valve 2/5/R shift
- P1843 - Valve Y3/7Y4 - PWM Solenoid valve Torque converter lock up clutch
- P1850 - Y3/7N1 - Transmission RPM sensor
- P1858 - Y3/7S1 - Starter lock-out contact