C 1500 Suburban 2WD V8-454 7.4L VIN N TBI (1995)
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6. Checks for open or grounded CKT 439.
7. Checks for open CKT 543 or faulty control module.
DIAGNOSTIC AIDS
Check all connections. If OK, refer to Diagnosis By Symptom / Intermittents See: Testing and Inspection/Symptom Related Diagnostic
Procedures/Intermittent Condition
IAC valve reset procedure:
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Disconnect battery terminal for 10 seconds, then reconnect terminal.
^
Ignition "ON," engine "OFF" for 5 seconds.
^
Ignition "OFF" for 10 seconds.