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P0509-IDLE AIR CONTROL VALVE SENSE CIRCUIT HIGH (CONTINUED) 3. (K961) IAC SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE Turn the ignition off. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K961) IAC Signal circuit in the IAC Motor Is the voltage above 0.5 of a volt? Yes >> Repair the short to battery voltage in the (K961) IAC Sig- nal circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 4 4. (K61) IAC CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE Measure the voltage on the (K61) IAC Control circuit in the IAC Motor Is the voltage above 0.5 of a volt? Yes >> Repair the short to battery voltage in the (K61) IAC Con- trol circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 5 9 - 556 ENGINE ELECTRICAL DIAGNOSTICS WK |