Conditions for Running the DTC

• DTCs P0106, P0107, P0108, P0117, P0118, P0122, P0123, P0201, P0202, P0203, P0204, P0300, P0351, P0352, P0402, P0404, P0405, P0406, and P042E are not set.
• The engine is running.
• The engine coolant temperature (ECT) is greater than 60°C (140°F).
• The ignition 1 voltage is between 11-16 volts.
• DTC P0502 runs continuously once the above conditions are met.
• The following are additional Conditions for Running for the applicable test:

  Power Test

  • The engine speed is between 1,200-4,000 RPM.
  • The throttle position (TP) sensor is between 25-60 percent.
  • The manifold absolute pressure (MAP) is greater than 60 kPa.

Deceleration Test

• The MAP is less than 30 kPa.
• The change in engine speed per cycle is less than or equal to 50 RPM/cycle.
• The TP sensor is less than or equal to 0.8 percent.
• The engine speed is between 1,800-6,000 RPM.