Mitsubishi Lancer / Evolution X SST Mechatronic Fault Repairs
Mitsubishi SST Mechatronic System
The Mitsubishi Twin Clutch SST (sport or sportronic shift transmission) is the name given to the dual clutch 6-speed transmission designed by Getrag for Mitsubishi Motors. As with other rival systems, the SST transmission is controlled by a transmission ECU (Mechatronic Gearbox ECU), sensors, solenoids and valves – all housed within the transmission valve body and it is extremely common for these parts to become faulty.
Common Mitsubishi SST Mechatronic Problems
Some of the most common faults associated with the Mitsubishi SST Transmission are listed below:
- Power loss
- Jerking in/out of gears
- Gearbox fails when it overheats
- Not going in to gear
- Loss of reverse gear
- Limp Mode
If you have any of the above faults and your vehicle has been diagnose with a faulty SST Mechatronic unit then you may have been advised that the unit is not a repairable part and once a fault has developed it must be replaced – this is not entirely true. Mitsubishi dealerships do not have the required extensive knowledge and equipment to test and repair a part, if the part is faulty they will replace it and the cost of replacing a mechatronic unit is upwards of £1200.00 +Vat.
My Mitsubishi SST Has a Mechatronic TCM Fault – Can SINSPEED Help Me?
At Sinspeed we have the latest state of the art mechatronic testing and repair facilities that allow us to fully test even the most intricate system types in an isolated environment. We use genuine OEM components when rebuilding a mechatronic unit but also uprate parts where possible to strengthen the repair and eliminate common known weaknesses. All remanufactured mechatronic units are set up to be plug & play when refitted back to the vehicle, with no additional programming/coding required.
All repaired mechatronic units are returned with a Lifetime warranty. For more information on our testing and repair services, please call us on 0203 815 9441 .
Mitsubishi SST DTC Fault Code Table
Below is an extensive list of fault codes associated with the Mitsubishi SST.
| Fault Code | Fault Description |
|---|---|
| P0630 | VIN not recorded |
| P0701 | EEPROM system (Malfunction) |
| P0702 | Internal control module, monitoring processor system (Malfunction) |
| P0711 | TC-SST-ECU temperature sensor system (Gradient error) |
| P0712 | TC-SST-ECU temperature sensor system (Output low range out) |
| P0713 | TC-SST-ECU temperature sensor system (Output high range out) |
| P0715 | Input shaft 1 (odd number gear axle) speed sensor system (Output high range out) |
| P0716 | Input shaft 1 (odd number gear axle) speed sensor system (Poor performance) |
| P0717 | Input shaft 1 (odd number gear axle) speed sensor system (Output low range out) |
| P0725 | Engine speed signal abnormality |
| P0746 | Line pressure solenoid system (Drive current range out) |
| P0753 | Shift select solenoid 1 system (Open circuit) |
| P0758 | Shift select solenoid 2 system (Open circuit) |
| P0776 | Clutch cooling flow solenoid system (Drive current range out) |
| P0777 | Clutch cooling flow solenoid system (Stuck) |
| P0841 | Clutch 1 pressure sensor system (Poor performance) |
| P0842 | Clutch 1 pressure sensor system (Output low range out) |
| P0843 | Clutch 1 pressure sensor system (Output high range out) |
| P0846 | Clutch 2 pressure sensor system (Poor performance) |
| P0847 | Clutch 2 pressure sensor system (Output low range out) |
| P0848 | Clutch 2 pressure sensor system (Output high range out) |
| P0960 | Line pressure solenoid system (Open circuit) |
| P0961 | Line pressure solenoid system (Overcurrent) |
| P0962 | Line pressure solenoid system (Short to ground) |
| P0963 | Line pressure solenoid system (Short to power supply) |
| P0964 | Clutch cooling flow solenoid system (Open circuit) |
| P0965 | Clutch cooling flow solenoid system (Overcurrent) |
| P0966 | Clutch cooling flow solenoid system (Short to ground) |
| P0967 | Clutch cooling flow solenoid system (Short to power supply) |
| P0968 | Shift/cooling switching solenoid system (Open circuit) |
| P0970 | Shift/cooling switching solenoid system (Short to ground) |
| P0971 | Shift/cooling switching solenoid system (Short to power supply) |
| P0973 | Shift select solenoid 1 system (Short to ground) |
| P0974 | Shift select solenoid 1 system (Short to power supply) |
| P0976 | Shift select solenoid 2 system (Short to ground) |
| P0977 | Shift select solenoid 2 system (Short to power supply) |
| P1637 | EEPROM system (DTC storing malfunction) |
| P1676 | Coding incomplete |
| P1802 | Shift lever system (LIN communication malfunction) |
| P1803 | Shift lever system (CAN or LIN time-out error) |
| P1804 | Shift fork position sensor 1 and 2 system (Power supply voltage low range out) |
| P1805 | Shift fork position sensor 1 and 2 system (Power supply voltage high range out) |
| P1806 | Shift fork position sensor 3 and 4 system (Power supply voltage low range out) |
| P1807 | Shift fork position sensor 3 and 4 system (Power supply voltage high range out) |
| P1808 | TC-SST-ECU temperature, fluid temperature sensor system (Correlation error) |
| P180C | Clutch pressure cut spool sticking |
| P181B | Clutch 1 (Pressure low range out) |
| P181C | Clutch 1 (Pressure high range out) |
| P181E | Clutch 2 (Pressure low range out) |
| P181F | Clutch 2 (Pressure high range out) |
| P1820 | Shift fork position sensor 1 system (Voltage low range out) |
| P1821 | Shift fork position sensor 1 system (Voltage high range out) |
| P1822 | Shift fork position sensor 1 system (Output range out) |
| P1823 | Shift fork position sensor 1 system (Neutral) |
| P1824 | Shift fork position sensor 1 system (Poor performance) |
| P1825 | Shift fork position sensor 2 system (Voltage low range out) |
| P1826 | Shift fork position sensor 2 system (Voltage high range out) |
| P1827 | Shift fork position sensor 2 system (Output range out) |
| P1828 | Shift fork position sensor 2 system (Neutral) |
| P1829 | Shift fork position sensor 2 system (Poor performance) |
| P182A | Shift fork position sensor 3 system (Voltage low range out) |
| P182B | Shift fork position sensor 3 system (Voltage high range out) |
| P182C | Shift fork position sensor 3 system (Output range out) |
| P182D | Shift fork position sensor 3 system (Neutral) |
| P182E | Shift fork position sensor 3 system (Poor performance) |
| P1831 | Shift fork position sensor 4 system (Voltage low range out) |
| P1832 | Shift fork position sensor 4 system (Voltage high range out) |
| P1833 | Shift fork position sensor 4 system (Output range out) |
| P1834 | Shift fork position sensor 4 system (Neutral) |
| P1835 | Shift fork position sensor 4 system (Poor performance) |
| P1836 | Shift fork 1 malfunction |
| P183D | Shift fork 2 malfunction |
| P1844 | Shift fork 3 malfunction |
| P184B | Shift fork 4 malfunction |
| P1852 | Shift fork 1 or 2 opposite direction movement |
| P1855 | Shift fork 3 or 4 opposite direction movement |
| P1857 | Odd number gear axle interlock |
| P1858 | Even number gear axle interlock |
| P1859 | Disengagement too late with clutch 1 |
| P185A | Engagement too late with clutch 1 |
| P185B | Disengagement too late with clutch 2 |
| P185C | Engagement too late with clutch 2 |
| P185D | Clutch open not possible |
| P1862 | High side 1 system (Overcurrent) |
| P1863 | High side 1 system (Open circuit) |
| P1864 | High side 1 system (Short to power supply) |
| P1866 | High side 2 system (Overcurrent) |
| P1867 | High side 2 system (Open circuit) |
| P1868 | High side 2 system (Short to power supply) |
| P186A | High side 3 system (Overcurrent) |
| P186B | High side 3 system (Open circuit) |
| P186C | High side 3 system (Short to power supply) |
| P186D | High side 1 system (Voltage low range out) |
| P186E | High side 2 system (Voltage low range out) |
| P186F | High side 3 system (Voltage low range out) |
| P1870 | Engine torque signal abnormality |
| P1871 | APS system (Signal abnormality) |
| P1872 | Between shift lever and TC-SST system (Q-A function abnormality) |
| P1873 | Clutch 1 system (Pressure abnormality) |
| P1874 | Clutch 2 system (Pressure abnormality) |
| P1875 | Damper speed sensor system (Poor performance) |
| P1876 | Gear block 1st |
| P1877 | Gear block 2nd |
| P1878 | Gear block 3rd |
| P1879 | Gear block 4th |
| P187A | Gear block 5th |
| P187B | Gear block 6th |
| P187C | Gear block reverse |
| P1880 | EOL Mode Active |
| P1881 | Twin clutch SST control mode switch system (Malfunction) |
| P2718 | Clutch/shift pressure solenoid 1 system (Open circuit) |
| P2719 | Clutch/shift pressure solenoid 1 system (Overcurrent) |
| P2720 | Clutch/shift pressure solenoid 1 system (Short to ground) |
| P2721 | Clutch/shift pressure solenoid 1 system (Short to power supply) |
| P2727 | Clutch/shift pressure solenoid 2 system (Open circuit) |
| P2728 | Clutch/shift pressure solenoid 2 system (Overcurrent) |
| P2729 | Clutch/shift pressure solenoid 2 system (Short to ground) |
| P2730 | Clutch/shift pressure solenoid 2 system (Short to power supply) |
| P2733 | Clutch/shift switching solenoid 1, spool stuck |
| P2736 | Clutch/shift switching solenoid 1 system (Open circuit) |
| P2738 | Clutch/shift switching solenoid 1 system (Short to ground) |
| P2739 | Clutch/shift switching solenoid 1 system (Short to power supply) |
| P2741 | Fluid temperature sensor system (Gradient error) |
| P2742 | Fluid temperature sensor system (Output low range out) |
| P2743 | Fluid temperature sensor system (Output high range out) |
| P2766 | Input shaft 2 (even number gear axle) speed sensor system (Poor performance) |
| P2809 | Clutch/shift switching solenoid 2, spool stuck |
| P2812 | Clutch/shift switching solenoid 2 system (Open circuit) |
| P2814 | Clutch/shift switching solenoid 2 system (Short to ground) |
| P2815 | Clutch/shift switching solenoid 2 system (Short to power supply) |
| U0001 | Bus off |
| U0100 | Engine time-out error |
| U0103 | Shift lever time-out error |
| U0121 | ASC time-out error |
| U0136 | AWC time-out error |
| U0141 | ETACS time-out error |
Ajaz is a seasoned automotive electronics engineer with deep expertise in remanufacturing vehicle electronics. He has developed skills in all areas of the automotive field, from rebuilding hydraulic steering components, and mechanical gearboxes and reworking intricate vehicle electronics. Ajaz also acquired Bodyteq, a London-based vehicle bodyshop where he has developed extensive knowledge in automotive refinishing.
Alongside his automotive career, Ajaz has built a career in the IT industry, gaining accredited certification as an AWS Certified Cloud Practitioner, Cloud Architect, and Search Engine Optimisation (SEO) specialist.
Price on mecha unit fix for evo x 08?Slipping out of gears not shifting Properly.
Hi Marcus
Thanks for the enquiry,
I have sent you an email with full information and pricing.
Kind Regards
Jason
SINSPEED
I have a 2009 Ralliart (sst) and transmission failed. replaced the transmission with a used one and turns out it had a bad shiftfork, rebuilt it but now reverse does not work. and gears don’t shift automatically(must use paddle shifters) a aftermarket dealership told me i need a new mechatronic unit to recalibrate, which will fix the issue. Do you think this will fix the issue? also, i’m in the toronto, canada area. Your reply would be highly appreciated! Thanks!
Hi Ramneet
Thanks for the enquiry,
I have sent you an email with some information I think may help you resolve the issue. I hope you have a great weekend.
Kind Regards
Jason
SINSPEED
Hi can you emil me a price on testing the unit ect the car it selth when you switch it off sone time it dosent disengag gear and deals like you have stalled the car
Hi Daniel
Thanks for the enquiry,
We have sent you an email with full information and pricing.
Kind Regards
Sophie
SINSPEED
I have a lancer X sst.
I found this DTC error: C3520
Can you help me?
many thank’s
Alex
Hello Alex
Thanks for getting in touch,
We have sent you an email with full details and pricing about your query.
Kind Regards
Sophie
SINSPEED
I Have evo X sST 2009,
Mechatronic unit Issue, Many tnx!
Hi Richard!
Thanks for contacting us.
I have forwarded your enquiry to our relevant department & they’ll be reaching out to you soon via email.
Regards
SINSPEED
2010 Galant Fortis RA. Car not taking gears. Machatronic unit faulty. error code p1836 and p184B.
Hey Christian!
Thanks for contacting us!
I’ve forwarded your enquiry to the concerned department & they will reach out to you via email.
Regards
Sinspeed