P0606

2AZ-FXE ENGINE CONTROL: SFI SYSTEM: P0606: ECM / PCM Processor
P0606 - ECM / PCM Processor

MONITOR DESCRIPTION

The hybrid vehicle control ECU continuously monitors its main and sub CPUs. This self-check ensures that the hybrid vehicle control ECU is functioning properly. If outputs from the CPUs are different and deviate from the standards, the hybrid vehicle control ECU will illuminate the MIL and set the DTC immediately.





MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.

2. Turn the power switch on (IG) and turn the Techstream on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4. Turn the Techstream off.

5. Turn the power switch off.

6. Disconnect the Techstream.

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

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

9. Connect the Techstream to the DLC3.

10. Turn the power switch on (IG) and turn the Techstream on.

11. Wait 1 second or more.

12. Enter the following menus: Powertrain / Engine and ECT / 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 and ECT / Utility / All Readiness.

15. Input the DTC: P0606.

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

HINT
Read freeze frame data using the Techstream. The hybrid vehicle control ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

PROCEDURE

1. READ OUTPUT DTC (DTC P0606)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

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

(e) Turn the power switch off and turn the Techstream off.

(f) Disconnect the Techstream.

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

(h) Connect the cable to the auxiliary battery negative (-) terminal.

(i) Connect the Techstream to the DLC3.

(j) Turn the power switch on (IG).

(k) Wait 1 second or more.

(l) Turn the Techstream on.

(m) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

(n) Read the DTCs.

Result:





B -- REPLACE HYBRID VEHICLE CONTROL ECU Removal

A -- CHECK FOR INTERMITTENT PROBLEMS Check for Intermittent Problems