View single post by Mark Rosenbaum
 Posted: 02-10-2007 02:34 pm
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Mark Rosenbaum



Joined: 03-12-2005
Location: Kingman, Arizona USA
Posts: 532
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Bill, what you suggest is quite easy to do using almost any automotive-rated switch (such as a pushbutton or momentary-contact toggle switch).  The details vary slightly depending on the specific version of JH.

Cars with start relays:
Mounted high on the kick panel, under the dash on the driver's side, are the turn and hazard flashers and the start relay, which activates the starter solenoid when the ignition switch is turned to the START position.  Attached to the relay's socket are a black wire, a brown wire, and two white-red wires -- one to the ignition switch, the other to the starter solenoid.  The added pushbutton is connected between the brown wire and the white-red wire that runs to the solenoid (NOT the one that connects to the ignition switch).  You may remove the relay, if desired, to disable engine cranking when the ignition switch is turned fully clockwise.

Cars without start relays:
In these cars the white-red wire runs between the ignition switch and the starter solenoid.  Here one connects the added pushbutton between the brown and white-red wires on the wiring harness side of the ignition switch connector.  To disable engine cranking via the ignition key, the white-red wire (NOT the brown wire) attached to the ignition switch must be disconnected.  This is best done by extracting the white-red wire from the ignition switch side of the ignition switch wiring connector, and taping up its connector pin.

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