Toyota Tundra (2015 year). Manual — part 1954
OK
OK
NG
CHECK FOR SHORTS IN ALL HARNESSES AND
CONNECTORS CONNECTED TO FUSE AND
REPLACE FUSE
2.
CHECK HARNESS AND CONNECTOR (EFI NO. 1 FUSE - ECM, BATTERY)
(a) Check the harness and the connector between the EFI NO. 1 fuse and ECM.
(1) Remove the EFI NO. 1 fuse from the engine room relay block.
(2) Disconnect the A24 ECM connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
EFI NO. 1 fuse terminal 2 - A24-1 (BATT)
Always
Below 1 Ω
EFI NO. 1 fuse terminal 2 or A24-1 (BATT) - Body ground
Always
10 kΩ or higher
(b) Check the harness and the connector between the EFI NO. 1 fuse and battery.
(1) Remove the EFI NO. 1 fuse from the engine room relay block.
(2) Disconnect the positive battery terminal.
(3) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED
CONDITION
Battery positive (+) terminal - EFI NO. 1 fuse terminal 1
Always
Below 1 Ω
Battery positive (+) terminal or EFI NO. 1 fuse terminal 1- Body
ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
3.
INSPECT BATTERY
(a) Check that the battery is not depleted
.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0560; Syste...
OK
OK
OK:
Battery is not depleted.
NG
REPLACE BATTERY
4.
CHECK BATTERY TERMINAL
(a) Check that the battery terminals are not loose or corroded.
OK:
Battery terminals are not loose or corroded.
NG
REPAIR BATTERY TERMINAL
5.
CHECK WHETHER DTC OUTPUT RECURS
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON and turn the Techstream on.
(c) Clear DTCs
.
(d) Turn the ignition switch off and turn the Techstream off.
(e) Start the engine and turn the Techstream on.
(f) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(g) Read DTCs.
Result
RESULT
PROCEED TO
P0560 is output
A
No DTC is output
B
B
CHECK FOR INTERMITTENT PROBLEMS
A
REPLACE ECM
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0560; Syste...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000002KQO0DUX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0604; Random Access Memory (RAM); 2015 MY
Tundra [08/2014 - ]
DTC
P0604
Random Access Memory (RAM)
DESCRIPTION
The ECM continuously monitors its internal memory status. This self-check ensures that the ECM is functioning
illuminate the MIL and set a DTC immediately.
DTC CODE
DTC DETECTION CONDITION
TROUBLE AREA
P0604
ECM RAM errors
ECM
MONITOR STRATEGY
Related DTCs
None
Required Sensors/Components (Main)
ECM
Required Sensors/Components (Related)
None
Duration
6 times
MIL operation
Immediate
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs not present
None
TYPICAL MALFUNCTION THRESHOLDS
Main CPU and sub CPU mirroring
Fail
CONFIRMATION DRIVING PATTERN
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0604; Rand...
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON and turn the Techstream on.
2.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
3.
Turn the ignition switch off and wait for at least 30 seconds.
4.
Turn the ignition switch to ON and turn the Techstream on.
5.
Wait 16 seconds or more [A].
6.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].
7.
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.
8.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
9.
Input the DTC: P0604.
10.
Check the DTC judgment result.
TESTER
DISPLAY
DESCRIPTION
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
N/A
Unable to perform DTC judgment
HINT:
If the judgment result shows ABNORMAL, the system has a malfunction.
11.
If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and
12.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0604; Rand...
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