SFI System

FA20 ENGINE CONTROL: SFI SYSTEM: P0604-P0606, P060A, P060B, P062F; Internal Control Module Random Access Memory (RAM) Error; 2013 MY FR-S [03/2012 -]
P0604 - Internal Control Module Random Access Memory (RAM) Error
P0605 - Internal Control Module Read Only Memory (ROM) Error
P0606 - ECM / PCM Processor
P060A - Internal Control Module Monitoring Processor Performance
P060B - Internal Control Module A/D Processing Performance
P062F - Internal Control Module EEPROM Error

DESCRIPTION

P0604

The ECM continuously monitors its internal memory status. This self-check ensures that the ECM functioning properly. It is diagnosed by internal "mirroring" of the main CPU and sub CPU to detect the Random Access Memory (RAM) errors. If outputs from these CPUs are different and deviate from the standard, the ECM stores the DTC.

P0605

The ECM continuously monitors its internal memory status. This self-check ensures that the ECM functioning properly. It is diagnosed by internal "mirroring" of the main CPU and sub CPU to detect the Read Only Memory (ROM) errors. If outputs from these CPUs are different and deviate from the standard, the ECM stores the DTC.

P0606

The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standard, the ECM stores the DTC.

P060A

The main CPU and sub CPU of the ECM perform data communication between each other. The main CPU monitors the communications and WDC pulses from the sub CPU. If the malfunction is detected, the ECM stores the DTC.

P060B

If a communication error occurs in the ECM, the ECM stores the DTC.

P062F

The ECM monitors its internal operation. If the ECM detects an internal malfunction, the ECM stores the DTC.





MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

All





P0604, P0605





P0606 (Instruction Check) (Case 1)





P0606 (Instruction Check) (Case 2)





P0606 (Software Monitor Check)





P060A (Disable Function Observation IC)





P060A (Malfunction of Observation IC Calculation)





P060A (Observation IC Resister Monitoring)





P060B





TYPICAL MALFUNCTION THRESHOLDS

P0604





P0605





P0606 (Instruction Check) (Case 1)





P0606 (Instruction Check) (Case 2)





P0606 (Software Flow Check)





P0606 (Output Driver Communication Check)





P0606 (CAN Resister Check)





P060A (Disable Function Observation IC)





P060A (Malfunction of Observation IC Calculation)





P060A (Observation IC Resister Monitoring)





P060B





P062F (Observation IC Resister Monitoring)





CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.

2. Turn the ignition switch to ON and turn the Techstream on.

3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation) Reading and Clearing Diagnostic Trouble Codes.

4. Turn the Techstream off.

5. Turn the ignition switch off.

6. Disconnect the Techstream.

7. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

8. Connect the cable to the negative (-) battery terminal.

9. Connect the Techstream to the DLC3.

10. Turn the ignition switch to ON and turn the Techstream on.

11. Wait 16 seconds or more.

12. Enter the following menus: Powertrain / Engine / Trouble Codes.

13. Read the pending DTCs.

HINT
* If a pending DTC is output, the system is malfunctioning.
* If a pending DTC is not output, perform the following procedure.

14. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

15. Input the DTC: P0604, P0605, P0606, P060A, P060B or P062F.

16. Check the DTC judgment result.





HINT
* If the judgment result shows NORMAL, the system is normal.
* If the judgment result shows ABNORMAL, the system has a malfunction.

17. If the judgment result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs Reading and Clearing Diagnostic Trouble Codes.

HINT
* If a permanent DTC is output, the system is malfunctioning.
* If no permanent DTC is output, the system is normal.

INSPECTION PROCEDURE

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1. READ DTC OUTPUT (DTC P0604, P0605, P0606, P060A, P060B AND/OR P062F)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(e) Turn the ignition switch off.

(f) Turn the Techstream off.

(g) Disconnect the Techstream.

(h) Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

(i) Connect the cable to the negative (-) battery terminal.

(j) Connect the Techstream to the DLC3.

(k) Turn the ignition switch to ON.

(l) Turn the Techstream on.

(m) Wait for 16 seconds or more.

(n) Enter the following menus: Powertrain / Engine / Trouble Codes.

(o) Read the DTCs.

Result:





B -- REPLACE ECM Removal

A -- CHECK FOR INTERMITTENT PROBLEMS Check For Intermittent Problems