First, the ECM and the PCM are the same.
The 605 code is the key and it is telling you it needs to be replaced from an internal failure.
You need a new PCM and have to flash it to your car.
1. Remove speed control servo and bracket and reposition out of the way.
2. Reposition wiring harness out of the way.
3. Remove washer bottle filler neck.
Fig.7 TCM Location
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4. Remove Transmission Control Module (TCM) reposition out of the way.
5. Remove PCM
6. Disconnect PCM 2 40-way connector.
The PCM engine control strategy prevents reduced idle speeds until after the engine operates for 320 km (200 miles). If the PCM is replaced after 320 km (200 miles) of usage, update the mileage and vehicle identification number (VIN) in the new PCM. Use the DRB III scan tool to change the millage and VIN in the PCM. If this step is not done a diagnostic trouble code (DTC) may be set and SKIM must be done or car will not start if it is a SKIM equipped car. If a SKIM car you must do a secret key transfer also. Refer to the appropriate Powertrain Diagnostic and the DRB III scan tool.
1. Attach 2 40-way connector to PCM.
2. Install PCM. Tighten bolt to 4 Nm (35 in. Lbs.) Torque.
3. Install TCM.
4. Install washer bottle filler neck.
5. Reposition wiring harness.
6. Install speed control servo and bracket and tighten fasteners
7. Connect negative battery cable and reprogram radio and clock.
8. Using DRB III scan tool, program mileage and vehicle identification number (VIN) into PCM. Refer to the DRB III scan tool and the appropriate Power-train Diagnostic.
Images (Click to enlarge)
Tuesday, May 21st, 2019 AT 12:46 PM