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ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-299 3 1. Turn OFF the ignition. 2. Disconnect the TCM harness connector. 3. Connect a test lamp between the accelerator 4. Turn ON the ignition, with the engine OFF. Does the test lamp illuminate? — Go to Step 4 Go to Step 5 4 1. Test the signal circuit between the ECM (pin 2. Repair the circuit(s) as necessary. Did you find and correct the condition? — Go to Step 7 Go to Step 6 5 Important: Replacement TCM must be Did you complete the replacement? — Go to Step 7 — 6 Important: Replacement ECM must be Did you complete the replacement? — Go to Step 7 — 7 1. Reconnect all previously disconnected 2. Clear the DTCs with a scan tool. 3. Turn OFF the ignition for 30 seconds. 4. Start the engine. 5. Operate the vehicle within the Conditions for Did the DTC fail this ignition? — Go to Step 3 Go to Step 8 8 Observe the DTC Information with a scan tool. Are there any DTCs that you have not diagnosed? — Go to DTC List System OK Step Action Value(s) Yes No |