| Suddenly car would stop shifting up from first gear. | |
Hi Everyone,
L322 TD6 5L40E 2004
Driving home this evening, come off the Motorway after 20 miles stopped at red lights, car behaved up to the red light, then had to travel last 1/2 mile in 1st gear as the car would not shift out of first gear when in Drive or manual override (2 or 3 or 4 can be selected on the dash when moving). Got home, reverse neutral and park still working. The transmission had logged a fault: Trans fail safe mode.
Used IIDTool to clear faults. Test drive whilst still hot, still only have 1st, reverse, neutral and park available.
Allowed car to cool overnight, fully charged battery as precaution, test drive from cold, still same fault.
Checked resistances from EAT ECU connector C1835. All within spec (allowing for slight resistance of leads from ECU to gearbox)
Shift valve solenoid A 16.7 ohm
Shift valve solenoid B 17.2 ohm
Shift valve solenoid C 16.9 ohm
TCC PWM solenoid 11.7 ohm
Pressure regulator solenoid 4.8 ohm
Input shaft speed sensor 407.0 ohm
Output shaft speed sensor 399.0 ohm
Temperature sensor 2180.0 ohm
EAT ECU Output
Solenoid A B C
D off on off
M1 off on on
M2 on on on
IID transmission live values gives realistic oil temperature, engine speed turbine speed an output shaft speed.
Any helpful suggestions gratefully appreciated.
Many thanks.
|
8th Nov 2019 6:10pm
