Fault Code 42
Description: ASD (Automatic ShutDown)
relay circuit is open or shorted
Power loss light: Off
Limp-in mode: None
Blown fusible link to power module (or SMEC) - Check the only white
fusible link (may look grey if dirty) by tugging on it. A good link
will feel solid while a blown link will stretch like a rubber band. It
is the white link on the two-link circuit (not the four or five link circuit).
This link supplies power to the ASD relay and the voltage sense input on
the logic module (may be accompanied by a code 16). See the Fusible
Links page for more details.
Bad connection or wiring - Check the wiring and connections between
the ASD relay and the logic module. Clean and regrease any corroded
connectors with dielectric grease and repair any shorts.
ASD relay failure - Disconnect the relay, apply 12V to the relay
coil, and check the contacts
- Near 0V or near 12V not detected when the relay is turned on or off,
- 12V not detected at output of ASD relay
Results If Component Fails
Fault code 42 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