FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

DR-1H Automatic Idle Speed Motor Operation


***UPDATED BY TSB #18-62-86

1. Connect diagnostic read-out tool to engine test connector. Make sure read/hold switch is in the Read position.
2. Connect a tachometer to the engine and the start the engine.
3. Disconnect the coolant sensor and move the read/hold switch to the Hold position.
4. If engine speed increses to about 1500 RPM's, with a cold problem proceed to Test 20, if with a warm problem proceed to Test 23.
5. If engine speed is not okay, proceed to Step I.