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6E-198 Engine Control System (4HK1) P0612 (Flash Code 34) Circuit Description Condition for Running the DTC • The ignition switch is ON. Condition for Setting the DTC • The ECM detects that the common 2 fuel injector charge up circuit is insufficient charge. Action Taken When the DTC Sets • The ECM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. • The ECM limits accelerator control range. Condition for Clearing the MIL / DTC • The ECM turns OFF the MIL when the key is cycled after a current DTC clears. • A current DTC clears when the diagnostic runs and does not fail. • A history DTC clears after 20 consecutive driving cycles without a fault. Or clear with the Tech 2 or Diagnostic Aid • If an intermittent condition is suspected, refer to Intermittent Conditions in this section. DTC P0612 (Flash Code 34) Step Action Value(s) Yes No 1 Did you perform the Diagnostic System Check – — Go to Step 2 Go to Diagnostic System Check – Engine Controls 2 1. Install the Tech 2. 2. Turn OFF the ignition for 30 seconds. 3. Start the engine. 4. Monitor the Diagnostic Trouble Code (DTC) Does the DTC fail this ignition? — Go to Step 3 Go to Step 8 3 1. Test each ground circuit between the engine 2. Repair the circuit(s) as necessary. Did you find and correct the condition? — Go to Step 8 Go to Step 4 4 1. Turn OFF the ignition. 2. Inspect for an intermittent, for poor tightening 3. Repair the tightening or clean the corrosion as Did you find and correct the condition? — Go to Step 8 Go to Step 5 5 1. Test each ECM main relay voltage feed circuit 2. Repair the circuit(s) as necessary. Did you find and correct the condition? — Go to Step 8 Go to Step 6 |