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P0508-IDLE AIR CONTROL VALVE SENSE CIRCUIT LOW (CONTINUED) 4. (K961) IAC SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K961) IAC Signal Is the resistance below 100 ohms? Yes >> Repair the short to ground in the (K961) IAC Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 5 5. (K61) IAC CONTROL CIRCUIT OPEN Measure the resistance of the (K61) IAC Control circuit from the IAC Is the resistance below 5.0 ohms? Yes >> Go To 6 No >> Repair the open in the (K61) IAC Control circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer 9 - 550 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |