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P0505-IDLE AIR CONTROL MOTOR CIRCUITS (CONTINUED) 4. (K39) IAC #3 DRIVER CIRCUIT SHORTED TO THE (K59) IAC #4 DRIVER CIRCUIT NOTE: The following steps are checking for a short between the Is the resistance below 100 ohms? Yes >> Repair the short between the IAC Driver circuits. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 No >> Go To 5 5. IAC DRIVER CIRCUITS SHORTED TO VOLTAGE Remove the ASD Relay. Using a jumper wire, jumper between the (A14) Fused B+ circuit and Ignition on, engine not running with the PCM and IAC harness con- Measure the voltage on each of the IAC Driver circuits. Is the voltage above 1.0 volt at any IAC Driver circuit? Yes >> Repair the short to voltage on the appropriate IAC Driver circuit. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 No >> Go To 6 NOTE: Remove the jumper wire and install the ASD Relay before 9 - 1902 ENGINE - ELECTRICAL DIAGNOSTICS - SRT-10 DR/DH |