| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000002EM9O |
| Model Year Start: 2024 | Model: RAV4 | Prod Date Range: [10/2023 - ] |
| Title: STOP AND START: STOP AND START SYSTEM: P060444; Internal Control Module Random Access Memory (RAM) Error Data Memory Failure; 2024 MY RAV4 [10/2023 - ] | ||
|
DTC |
P060444 |
Internal Control Module Random Access Memory (RAM) Error Data Memory Failure |
MONITOR DESCRIPTION
The engine stop and start ECU continuously monitors its internal memory status. This self-check ensures that the engine stop and start ECU is functioning properly. The engine stop and start ECU 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 engine stop and start ECU will illuminate the MIL and store this DTC.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
Note |
|---|---|---|---|---|---|---|
|
P060444 |
Internal Control Module Random Access Memory (RAM) Error Data Memory Failure |
Engine stop and start ECU RAM error (1 trip detection logic). |
Engine stop and start ECU |
Comes on |
Does not come on |
SAE Code: P0604 |
MONITOR STRATEGY
|
Related DTCs |
P0604: Internal control module random access memory error (RAM error on starter / generator control module) performance |
|
Required Sensors/Components (Main) |
Engine stop and start ECU |
|
Required Sensors/Components (Related) |
- |
|
Frequency of Operation |
Continuous |
|
Duration |
0.1 seconds |
|
MIL Operation |
Immediate |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Monitor runs whenever the following DTCs are not stored |
None |
|
Ignition switch |
ON |
TYPICAL MALFUNCTION THRESHOLDS
|
RAM mirror check |
Fail |
CONFIRMATION DRIVING PATTERN
CONFIRMATION AFTER TROUBLESHOOTING
HINT:
-
If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.
In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item "Status of Battery Charge Control" changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery fluid temperature at 11°C (52°F) or higher, the refresh charge will be completed.)
-
If the GTS is not available and the Data List item "Status of Battery Charge Control" cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.
If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.
- After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.
- Allow the engine to idle for 3 minutes after it is warmed up and check that the engine idle speed is within 50 rpm of the target idle speed.
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
![2024 MY RAV4 [10/2023 - ]; STOP AND START: STOP AND START SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
- When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
(a) Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Powertrain > Stop and Start > Clear DTCs
(b) Turn the GTS off.
(c) Turn the ignition switch off.
(d) Disconnect the GTS.
(e) Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
(f) Connect the cable to the negative (-) battery terminal.
(g) Turn the ignition switch to ON.
(h) Wait 16 seconds or more.
(i) Enter the following menus: Powertrain / Stop and Start / Trouble Codes.
Powertrain > Stop and Start > Trouble Codes
(j) 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.
STOP AND START SYSTEM OPERATION CHECK
Click here
CAUTION / NOTICE / HINT
NOTICE:
To prevent the key from being locked in the vehicle, make sure to enter e-latch inspection mode and enable the manual release handle before disconnecting the cable from the negative (-) battery terminal.
Click here
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Stop and Start > Clear DTCs
(b) Turn the ignition switch off.
|
|
2. |
READ OUTPUT DTC (DTC P060444) |
Pre-procedure1
(a) Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
(b) Connect the cable to the negative (-) battery terminal.
(c) Turn the ignition switch to ON.
(d) Wait 16 seconds or more.
Procedure1
(e) Read the DTCs.
Powertrain > Stop and Start > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
P060444 is output |
B |
Post-procedure1
(f) None.
| A |
|
| B |
|
|
|