EasyManua.ls Logo

Spectrum 3.0L GM - Page 146

Default Icon
327 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
146
DTC 522614 Throttle Failed to Enter Limp Home
Conditions for Setting the DTC
Electronic Throttle Control
Check Condition-Ignition ON
Fault Condition-Throttle return spring test
MIL-On during active fault
Circuit Description
Dual throttle position sensors (TPS) are used with the electronic throttle control (ETC) to determine
throttle plate position. The TPS values are used by the ECM to determine if the throttle is opening and
closing as commanded. The ECM runs several checks at ignition on to validate the working condition of
the ETC. This fault will set if the ECM detects a problem with the ETC internal return spring.