MONITOR DESCRIPTION
The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from these CPUs are different and deviate from the standard, the ECM will illuminate the MIL and store a DTCs.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
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P060604 | Control Module Processor System Internal Failure | ECM main CPU malfunction (1 trip detection logic) | ECM | Comes on | DTC stored | SAE Code: P0606 |
P060629 | Control Module Processor Signal Invalid | ECM main CPU malfunction (1 trip detection logic) | ECM | Comes on | DTC stored | SAE Code: P0606 |
P06062A | Control Module Processor Signal Stuck in Range | ECM main CPU malfunction (1 trip detection logic) | ECM | Comes on | DTC stored | SAE Code: P0606 |
P060647 | Control Module Processor Watchdog/Safety MCU Failure | ECM main CPU malfunction (1 trip detection logic) | ECM | Comes on | DTC stored | SAE Code: P0606 |
MONITOR STRATEGY
Related DTC | P0606: ECM/PCM processor performance |
Required Sensors/Components (Main) | ECM |
Required Sensors/Components (Related) | - |
Frequency of Operation | Continuous |
Duration | 2 times |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
All Monitor runs whenever the following DTCs are not stored | None |
Both of the following conditions are met | - |
Write Inhibit | Permit |
Time after Write status forbiddance to permit | 0.5 seconds or more |
All of the following conditions are met | - |
Battery voltage | 8 V or higher |
Engine switch | On (IG) |
Starter | Off |
Write Inhibit | Permit |
Time after Write status forbiddance to permit | 0.5 seconds or more |
TYPICAL MALFUNCTION THRESHOLDS
Case 1 One of the following conditions is met | 5 seconds or more |
ROM check sum | Error |
RAM Read/Write check | Fail |
Specific software routine operation period check | Fail |
Software functional check | Fail |
Following condition is met | 40 times or more |
Specific software routine operation period check | Fail |
One of the following conditions is met | A or B |
A. Following condition is met | More than 30 seconds |
Specific software operation A validity check | Fail |
B. Following condition is met | More than 30 seconds |
Specific software operation B validity check | Fail |
Following condition is met | 25 times or more |
DMA communication | No response |
Following condition is met | 8 times or more |
Watchdog from monitoring processor | Not toggle |
CPU reset | Occurred |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
Techstream Display | Description |
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NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
CAUTION / NOTICE / HINT
NOTICE:
After turning engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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HINT:
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. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTC.
Powertrain > Engine > Clear DTCs(e) Turn the engine switch off.
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2. | READ OUTPUT DTC (DTC P060604, P060629 OR P060647) |
(a) Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
(b) Connect the cable to the negative (-) battery terminal.
(c) Connect the Techstream to the DLC3.
(d) Turn the engine switch on (IG).
(e) Turn the Techstream on.
(f) Wait 1 second or more.
(g) Enter the following menus: Powertrain / Engine / Trouble Codes.
(h) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
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DTCs are not output | A |
DTC P060604, P060629 or P060647 is output | B |
A | CHECK FOR INTERMITTENT PROBLEMS |
B | REPLACE ECM |