P0634 Isuzu Transmission Control Module Overtemperature
Possible causes
– Obstructions in the airflow of the radiator or transmission cooler
– Kinked or damaged transmission fluid lines
– Damage to the transmission cooler
– Kinked or damaged transmission fluid lines
– Damage to the transmission cooler
Tech description
Check transmission fluid level and condition and replaced fluid if necessary.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0634 Isuzu Description
The control solenoid (w/body and TCM) valve assembly has a built-in TCM temperature sensor to detect possible overtemperature conditions of the TCM. This fault indicates the TCM is in an overtemperature condition and the TCM has shut down to protect from possible heat damage to the TCM. TCM will remain off until the over temperature condition no longer exists.
Isuzu Vehicle:2013 Isuzu,2012 Isuzu,2011 Isuzu,2010 Isuzu,2009 Isuzu,2008 Isuzu,2007 Isuzu,2006 Isuzu,2005 Isuzu,2004 Isuzu,2003 Isuzu,2002 Isuzu,2001 Isuzu,2000 Isuzu,1999 Isuzu,1998 Isuzu,1997 Isuzu,1996 Isuzu,Isuzu Rodeo,Isuzu Trooper,Isuzu Ascender