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Mercedes Benz Siemens FTC (722.7)

Mercedes Benz Siemens FTC (722.7) Repair - TCUs

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Mercedes Benz Siemens FTC (722.7) - TCUs repair

Common problems

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

Is your complaint not listed? Please contact our customer service

How we work

We remanufacture the part you send. Prices are exclusive of VAT and possible shipping costs. Offer only applies to garages and dealers and not to individuals.

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!

Customer reviews

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20053897
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39531
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5WP2 1901
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VGS K01

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