Sets TC 37 torque management fail fault code.

Any dash warning lights on? Usually when the computer commands a "limp in" mode it turns on a warning light and sets a trouble code int he computer.

Known as Limp mode.you have to get a garage to run diagnostics in this scenario.it could be anything from fuel ,electrical exhaust and any fault will be stored in the ECU on board .the engine management light usually flashes when cars go into limp mode.
its the yellow icon on dashboard.one time I had an electronic throttle linkage play up every time it rained and a few hard pumps put the car back out of limp mode.your next move is to get it to a garage who can run on board diagnostics to pinpoint the cause via the error codes that show during the tests.limp mode is to protect further damage to engine but allow you to get it yo a garage or home.

Limp home mode is triggered when the management ECU recognises a fault. The fault is not usually obvious and diagnosis usually starts with a code read and probably an examination of live data with a scan tool.
The faulty item should then be removed and tested and repaired or replaced and then the recorded fault code cleared and the live data rechecked to verify a good repair.

Often even after a repair has been completed limp mode will continue until the code has been cleared with diagnostic equipment.

run the fault codes to see which sensors are failing and repair from there.

code p1105 refers to manifold absolute pressure(MAP) sensor, TC system-leak detected. causes ---intake leak, ---hoses There are to references to p1105 The second response is still map sensor but the causes are---TC system--mechanical fault--air leak between throttle body-TC,map sensor---TC system--exhaust blockage
code p1260 refers to throttle return spring--weak spring force. causes ---mechanical fault,--,throttle control unit
code p1264 refers to throttle valve opening-accelerator released causes ---throttle control unit---mechanical fault

MOST TIME LIMP MODE MEAN ECM FAILING IF YOU CANT ERASE OLD CODE AND REPROGRAM ECM. AND IT CANT RELEARN NEW PART ECM HAS A MEMORY FAULT.

code - 37 TCC brake switch circuit error. this is the torque converter clutch. Open or shorted condition detected in the torque converter part throttle unlock solenoid control circuit

• For turbocharged engines , code 37 will be triggered when the baro-read solenoid circuit is open or shorted.
• For normally aspirated (non turbo) engines with automatic transmissions, code 37 will be triggered when the Part Throttle Unlock (PTU) solenoid circuit is open or shorted.
• For normally aspirated cars with manual transmissions, code 37 is sometimes set for no apparent reason.

This is detected when the ECU doesn’t sense near 0vdc or 12vdc at the relay when the solenoid is turned on or off. When code 37 is thrown the power limited light will not be lit and the system will not enter limp mode.

the car is going into limp mode due to an engine management fault. have to check what the fault is with a code reader. if the milage is high 100,000+ could be a turbo fault (overboosting), as this will put the car into limp mode.

P0700 (M)
Check Transmission DTC's
This code indicates that the EATX (Transmission controller) has an active fault and has illuminated the MIL via a BUS message. The specific fault must be acquired from the EATX via a DRBIII tool. (Input or Output Speed Sensor failures often cause this code and are a common failure part on WJ Grand Cherokees

P0750
Shift Solenoid circuit.
Note: If code P1767 (Transmission Relay Always On) is also present: Replace transmission solenoid assembly. See note provided. When transmission is in limp mode the relay that provides power to the solenoid group is switched off. This is normal and is designed to provide operation in one gear only. Engineering department suggests to replace transmission solenoid assembly anytime these two trouble codes occur together. See applicable service manual section (21) for solenoid assembly replacement directions. IMPORTANT: When performing this repair always check torque on all valvebody accumulator cover plate screws. Proper torque specification is 70 inch pounds. If any accumulator cover plate screws are damaged or missing replace the valvebody assembly. NOTE: If any other trouble codes are present do not replace solenoid assembly. See test in the applicable Transmission Diagnostic Procedures Manual

P0755
Shift Solenoid B

the light comes on for faults in the engine fuel control system and for the emission control system on the car, about 150 different trouble codes that can turn the light on. If u would like a free test for these trouble codes go to any Kragen or Autozone parts tore and they will do the OBD2 trouble code test.