Toyota Yaris: Sfi System / Internal Control Module Random Access Memory (RAM) Error Data Memory Failure (P060444)
MONITOR DESCRIPTION
The ECM continuously monitors its internal memory status. This self-check ensures that the ECM is functioning properly. The ECM memory status is diagnosed by internal mirroring of the main CPU and sub CPU to detect Random Access Memory (RAM) errors. If outputs from these CPUs are different and deviate from the standard, the ECM will illuminate the MIL and store this DTC.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
P060444 | Internal Control Module Random Access Memory (RAM) Error Data Memory Failure | ECM RAM error (1 trip detection logic). | ECM | Comes on | SAE: P0604 |
MONITOR STRATEGY
Required Sensors/Components | ECM |
Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
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Connect the GTS to the DLC3.
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Turn the ignition switch to ON.
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Turn the GTS on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the GTS off.
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Turn the ignition switch off.
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Disconnect the GTS.
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Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute.
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Connect the cable to the negative (-) auxiliary battery terminal.
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Connect the GTS to the DLC3.
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Turn the ignition switch to ON.
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Turn the GTS on.
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Wait 16 seconds or more.
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Enter the following menus: Powertrain / Engine / Trouble Codes.
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Read the pending DTCs.
HINT:
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If a pending DTC is output, the system is malfunctioning.
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If a pending DTC is not output, perform the following procedure.
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Enter the following menus: Powertrain / Engine / Utility / All Readiness.
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Input the DTC: P060444.
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Check the DTC judgment result.
GTS Display | Description |
NORMAL | -
DTC judgment completed
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System normal
|
ABNORMAL | -
DTC judgment completed
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System abnormal
|
INCOMPLETE | -
DTC judgment not completed
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Perform driving pattern after confirming DTC enabling conditions
|
HINT:
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If the judgment result is NORMAL, the system is normal.
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If the judgment result is ABNORMAL, the system is malfunctioning.
CAUTION / NOTICE / HINT
HINT:
Read Freeze Frame Data using the GTS. 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
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(b) Turn the ignition switch off.
NEXT |
| |
2. | READ OUTPUT DTC (DTC P060444) |
(a) Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute.
(b) Connect the cable to the negative (-) auxiliary battery terminal.
(c) Wait 16 seconds or more.
(d) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
DTCs are not output | A |
P060444 is output | B |
A |
| CHECK FOR INTERMITTENT PROBLEMS |
B |
| REPLACE ECM |
MONITOR DESCRIPTION The auxiliary battery supplies electricity to the ECM even when the ignition switch is off. This power allows the ECM to store data such as DTC history, Freeze Frame Data and fuel trim values...
MONITOR DESCRIPTION The ECM continuously monitors its main CPU and monitor IC. This self-check ensures that the ECM is functioning properly. If outputs from main CPU and monitor IC are different and deviate from the standard, the ECM will illuminate the MIL and store this DTC...
Other information:
DESCRIPTION The power window regulator motor assemblies are operated by the multiplex network master switch assembly or power window regulator switch assembly. The power window regulator motor assemblies have motor, regulator and ECU functions. This DTC is stored when the ECU built into a power window regulator motor assembly and multiplex network master switch assembly determine that the multiplex network master switch assembly or power window regulator switch assembly is stuck...
SYSTEM DESCRIPTION POWER WINDOW CONTROL SYSTEM DESCRIPTION (a) The power window control system controls the power window operation using the power window regulator motor assemblies. The main controls of this system are the multiplex network master switch assembly (mounted on the driver door) and power window regulator switch assembly (mounted on the front passenger door) ...
Categories
Before refueling, close all the doors, windows, and the liftgate/trunk
lid, and switch the ignition OFF.
To open the fuel-filler lid, pull
the remote fuel-filler lid release.

To remove the fuel-filler cap, turn it counterclockwise.
Attach the removed cap to the
inner side of the fuel-filler lid.
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