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DTC P0125: Excess Time To Enter Closed Loop Fuel Control

NOTE: After each repair, clear DTCs. See CLEARING CODES/PCM RESET PROCEDURE  under SELF-DIAGNOSTIC SYSTEM. Turn ignition off and then on. Read DTCs to verify repair is complete. For DLC and PCM connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  .
  1. Using scan tool, read DTCs. If DTC P0125 is present, ensure Engine Coolant Temperature (ECT) sensor harness and connectors are not damaged and connections are okay. Repair as necessary. If harness and connectors are okay, go to next step.
  2. Turn ignition off. Remove and check thermostat operation. Replace thermostat if necessary. If thermostat is okay, clear DTCs. Turn ignition off and then on. Read DTCs. If DTC P0125 is not present, no fault is indicated at this time. If DTC P0125 is present, replace PCM.
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