Toyota Tundra (2015 year). Manual — part 1863
(2) Remove the EFI NO. 1 and ETCS fuses from the engine room relay block located inside the engine
compartment for more than 1 minute.
4. CLEAR PERMANENT DTC
HINT:
Even if the following procedure is not performed, permanent DTCs are cleared by obtaining a normal
judgment during 3 consecutive driving cycles.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(e) Check if permanent DTCs are stored.
HINT:
If permanent DTCs are not output, it is not necessary to continue this procedure.
(f) Clear DTCs.
(g) Perform the respective confirmation driving patterns in order to obtain a normal judgment for the
output DTCs.
HINT:
Confirmation driving patterns do not need to be performed for misfire and fuel system DTCs.
For the confirmation driving pattern, refer to the procedures for the relevant DTC
.
(h) Perform the universal trip.
HINT:
The driving pattern to obtain a normal judgment and the universal trip driving can be performed
consecutively in the same driving cycle.
Idle the engine for 30 seconds or more.
1.
It is possible to complete the drive pattern even if the vehicle decelerates to less than
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: DTC CHECK ...
Allow 10 minutes or more to elapse from the time the engine is started.
3.
(i) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(j) Check that the permanent DTCs have been cleared.
HINT:
The permanent DTCs are cleared when the universal trip is completed.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: DTC CHECK ...
Last Modified: 9-16-2014
6.6 D
Doc ID: RM000000PDS137X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: FREEZE FRAME DATA; 2015 MY Tundra [08/2014 -
]
FREEZE FRAME DATA
1. DESCRIPTION
Freeze frame data records the engine conditions (fuel system, calculated load, engine coolant
temperature, fuel trim, engine speed, vehicle speed, etc.) when a malfunction is detected. When
troubleshooting, it can help determine if the vehicle was moving or stationary, the engine was warmed
up or not, the air-fuel ratio was Lean or Rich, and other data from the time the malfunction occurred.
HINT:
If it is impossible to duplicate the problem even though a DTC is detected, confirm the freeze
frame data.
3 data sets before the DTC was set.
1 data set when the DTC was set.
1 data set after the DTC was set.
and in judging whether it was temporary or not.
2. LIST OF FREEZE FRAME DATA
TESTER DISPLAY
MEASUREMENT ITEM
DIAGNOSTIC NOTE
Vehicle Speed
Vehicle speed
Speed indicated on speedometer.
Engine Speed
Engine speed
-
Calculate Load
Calculated load
Calculated load by ECM.
Vehicle Load
Vehicle load
-
MAF
Mass air flow volume
If approximately 0.0 gm/sec:
Mass air flow meter power source circuit open or
short.
VG circuit open or short.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: FREEZE F...
TESTER DISPLAY
MEASUREMENT ITEM
DIAGNOSTIC NOTE
If 160.0 gm/sec or more:
E2G circuit open.
Atmosphere
Pressure
Atmosphere pressure
-
Coolant Temp
Engine coolant
temperature
If -40°C (-40°F), sensor circuit open.
If 140°C (284°F) or more, sensor circuit shorted.
Intake Air
Intake air
temperature
If -40°C (-40°F), sensor circuit open.
If 140°C (284°F) or more, sensor circuit shorted.
Engine Run Time
Accumulated engine
running time
-
Initial Engine
Coolant Temp
Engine coolant
temperature at engine
start
-
Initial Intake Air
Temp
Intake air
temperature at engine
start
-
Battery Voltage
Battery voltage
-
Accel Sens. No.1
Volt %
Absolute Accelerator
Pedal Position (APP)
No. 1
-
Accel Sens. No.2
Volt %
Absolute APP No. 2
-
Throttle Sensor
Volt %
Throttle sensor
positioning
-
Throttl Sensor #2
Volt %
Throttle sensor
positioning #2
-
Throttle Sensor
Position
Throttle position
-
Throttle Motor
DUTY
Throttle motor
-
Throttle Position
Throttle Position
For use when engine stall, starting problems or rough idle is
present.
ISC Flow
Flow rate calculated
using information from
each sensor
For use when engine stall, starting problems or rough idle is
present.
ISC Position
Requested opening
amount calculated
using ISC control
For use when engine stall, starting problems or rough idle is
present.
ISC Feedback
Value
ISC feedback
compensation amount
For use when engine stall, starting problems or rough idle is
present.
ISC Learning
Value
ISC learned
compensation amount
For use when engine stall, starting problems or rough idle is
present.
Electric Load
Feedback Val
Compensation flow
rate according to
electrical load
For use when engine stall, starting problems or rough idle is
present.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: FREEZE F...
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