Circuit Description

Code pertains to signals provided to ECM from Park/Neutral Position (PNP) switch, air conditioning switch and throttle position sensor IDL switch. Code is set when idle switch is off, PNP switch is off in "R", "D", "2" or "L" and, A/C switch on. Possible causes are:

• TPS IDL circuit.
• Accelerator pedal and cable.
• PNP switch circuit.
• A/C switch circuit.
• ECM.