Component Inspection

Engine

Engine Control - P0660 Intake Manifold Tuning Valve Control Circuit/Open (Bank 1) - Component Inspection

Component Inspection

Check VIV
1. IG "OFF" and disconnect VIV connector.
2. Measure resistance between power and control terminals of VIV connector. (Component side)
A. Specification : 30.0 - 35.0 Ohms [22°C (71.6°F)]




3. Is the measured resistance within specification?
YES
1) Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute with a known - good VIV and check for proper operation.
If the problem is corrected, replace VIV and go to "Verification of Vehicle Repair" procedure.

NOTE:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others