P1564 Isuzu Cruise Control System – Vehicle Accel Too High
Possible causes
– ASCD Steering Switch harness is open or shorted
– ASCD Steering Switch circuit poor electrical connection
– Faulty ASCD Steering Switch
– Faulty Engine Control Module (ECM)
– ASCD Steering Switch circuit poor electrical connection
– Faulty ASCD Steering Switch
– Faulty Engine Control Module (ECM)
What about the obd code?
An improper voltage signal from the Automatic Speed Control Device (ASCD) steering switch is sent to Engine Control Module (ECM).
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Automatic Speed Control (Cruise Control) system may stop working
– Automatic Speed Control (Cruise Control) system may stop working
P1564 Isuzu Description
Automatic Speed Control Device (ASCD) (Cruise Control) steering switch has variant values of electrical resistance for each button. The Engine Control Module (ECM) reads voltage variation
of switch, and determines which button is operated.
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