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6E-278 Engine Control System (4HK1) Chart for with Soother but without ABS 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. Monitor the engine control module (ECM) 4. Start the engine. Does the DTC fail this ignition? — Go to Step 3 Go to Diagnostic Aids 3 Attempt to communicate with the transmission Does the Tech 2 communicate with the TCM? — Go to Step 4 Go to Diagnostic System Check – Transmission Controls 4 1. Turn OFF the ignition. 2. Measure the resistance across the controller Is the resistance within the specified value (parallel Ω resister 1 and the 120 Ω resistor 2 should be 60 Ω)? 50 – 70 Ω Go to Step 11 Go to Step 5 5 Is the resistance less than the specified value at — Go to Step 6 Go to Step 9 6 1. Keep the DMM with connected. 2. Disconnect the TCM harness connectors. Is the resistance within the specified value? 50 – 70 Ω Go to Step 29 Go to Step 7 7 1. Keep the DMM with connected. 2. Disconnect the engine control module (ECM) Is the resistance within the specified value? 50 – 70 Ω Go to Step 30 Go to Step 8 8 1. Keep the DMM with connected. 2. Disconnect the data recording module (DRM) Is the resistance within the specified value? 50 – 70 Ω Go to Step 28 Go to Step 21 9 1. Disconnect the resistor 1 harness connector. 2. Measure the resistance of the resistor 1. Is the resistance within the specified value? 110 – 130 Ω Go to Step 10 Go to Step 26 10 1. Disconnect the resister 2 harness connector 2. Measure the resistance of the resistor 2. Is the resistance within the specified value? 110 – 130 Ω Go to Step 22 Go to Step 27 |