P0770 Citroen Shift Solenoid E Malfunction

P0770 Citroen Shift Solenoid E Malfunction

Possible causes
– Low transmission fluid level
– Dirty transmission fluid
– Faulty shift solenoid ‘E’ valve
– Shift solenoid ‘E’ valve harness is open or shorted
– Shift solenoid ‘E’ valve circuit poor electrical connection
Tech description
There is a factory service bulletin for the following models:

2003 Corolla
2003 Matrix
2003 Factory Service Bulletin OBDII Code P0770 Citroen

What about the obd code?
The P0770 Citroen code is detected when Lock up does not occur when driving in the lock up range (normal driving at 80 km/h [50 mph]), or lock up remains ON in the lock up OFF range.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift gears.
P0770 Citroen Description

The ECM uses the signals from the Throttle Position Sensor and Air flow Meter to monitor the engagement condition of the lock up clutch. Then the ECM compares the engagement condition of the lock up clutch with the lock up schedule in the ECM memory to detect mechanical trouble of the shift solenoid valve SLU, valve body, torque converter clutch and automatic transmission assembly

Citroen Vehicle:2013 Citroen,2012 Citroen,2011 Citroen,2010 Citroen,2009 Citroen,2008 Citroen,2007 Citroen,2006 Citroen,2005 Citroen,2004 Citroen,2003 Citroen,2002 Citroen,2001 Citroen,2000 Citroen,1999 Citroen,1998 Citroen,1997 Citroen,1996 Citroen,