Toyota Tundra (2015 year). Manual — part 2004
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Clear DTCs
.
(g) Enter the following menus: Powertrain / Engine and ECT / Utility / Air injection check /
Automatic Mode.
(h) Start the engine after the Techstream initialization is finished.
(i) Perform the System Check operation by pressing Next.
(j) After operating the AIR system, perform the following to confirm the AIR system pending
codes: Press the Exit button.
(k) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
(l) Read DTCs.
Result
RESULT
PROCEED TO
No DTC is output
A
Other DTCs are output
B
(m) Turn the ignition switch off.
NOTICE:
When performing the Air Injection Check operation after the battery cable has been reconnected, wait
for 7 minutes with the ignition switch turned to ON or the engine running.
Turn the ignition switch off when the Air Injection Check operation finishes.
B
REPLACE ECM
A
END
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614;...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000PFU0X9X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2102,P2103; Throttle Actuator Control Motor Circuit
Low; 2015 MY Tundra [08/2014 - ]
DTC
P2102
Throttle Actuator Control Motor Circuit Low
DTC
P2103
Throttle Actuator Control Motor Circuit High
DESCRIPTION
The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears.
control the throttle actuator and monitor the throttle opening angle as the ECM responds to driver inputs.
HINT:
This ETCS (Electronic Throttle Control System) does not use a throttle cable.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
P2102
Conditions (a) and (b) continue for 2.0 seconds (1 trip
detection logic):
(a) Throttle actuator duty ratio 80% or more
(b) Throttle actuator current less than 0.5 A
Open in throttle actuator
circuit
Throttle actuator
ECM
P2103
Hybrid IC current limiter port failure
Short in throttle actuator
circuit
Throttle actuator
Throttle valve
Throttle body assembly
ECM
MONITOR DESCRIPTION
The ECM monitors the electrical current through the electronic actuator, and detects malfunctions and open
circuits in the throttle actuator based on this value. If the current is outside the standard range, the ECM
determines that there is a malfunction in the throttle actuator. In addition, if the throttle valve does not
function properly (for example, stuck on), the ECM determines that there is a malfunction. The ECM then
illuminates the MIL and sets a DTC.
Example:
When the electrical current is less than 0.5 A and the throttle actuator duty ratio exceeds 80%, the ECM
interprets this as the current being outside the standard range, and illuminates the MIL and sets a DTC.
If the malfunction is not repaired successfully, a DTC is set when the engine is quickly revved to a high rpm
several times after the engine is started and has idled for 5 seconds.
MONITOR STRATEGY
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2102,P2103;...
Related DTCs
P2102: Throttle actuator current (low current)
P2103: Throttle actuator current (high current)
Required Sensors/Components (Main)
Throttle actuator (throttle body)
Required Sensors/Components (Related)
None
Duration
2 seconds: P2102
25 times: P2103 (Case 1)
0.6 seconds: P2103 (Case 2)
MIL Operation
Immediate
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs not present
None
P2102:
Throttle actuator
ON
Duty-cycle ratio to open throttle actuator
80% or more
Throttle actuator power supply
8 V or more
Motor current change during latest 0.016 sec
Less than 0.2 A
P2103:
Battery voltage
8 V or more
Starter
OFF
Electronic throttle actuator
ON
1. Electronic throttle actuator power supply voltage
8 V or more
2. Electronic throttle actuator power
ON
TYPICAL MALFUNCTION THRESHOLDS
P2102:
Throttle actuator current
Less than 0.5 A
P2103 (Case 1):
Hybrid IC high current limiter monitor input
Fail
P2103 (Case 2):
Hybrid IC diagnosis signal
ON
CONFIRMATION DRIVING PATTERN
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2102,P2103;...
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 [A].
5.
Start the engine.
6.
With the vehicle stationary, fully depress the accelerator pedal and quickly release it [B].
7.
Check that 16 seconds or more have elapsed from the instant when the accelerator pedal is first
depressed.
8.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
9.
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.
10.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11.
Input the DTC: P2102 or P2103.
12.
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
13.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2102,P2103;...
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