Fault Code 27
Description: Injector driver circuit 2 open or shorted
Power loss light: Off
Limp-in mode: None
Bad connection or wiring - Check the wiring and connections to injectors
3 and 4 in the injector harness (above the fuel rail) and between the harness
and the power module (or SMEC) and the injector contol lines between the
logic module and power module. Clean and regrease any corroded connectors
with dielectric grease and repair any shorts.
Injector driver transistor failure - Check the injector signals
coming from the power module (or SMEC). They should rise to about
12V when the injector is off and drop close to 0V when the injector is
on. If they are out of spec, you may need to replace the power module.
- Near 0V or near 12V not detected when the injector driver is turned on
or off, respectively
Results If Component Fails
Fault code 27 is stored.
This page is maintained by Russell W. Knize and was last updated 08/28/98.
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Copyright © 1996-2003 Russ W. Knize