Toyota Tundra (2015 year). Manual — part 2008
A
NEXT
B
GO TO STEP 5
4.
REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - THROTTLE BODY)
.
NEXT
END
5.
REPLACE THROTTLE BODY ASSEMBLY
(a) Replace the throttle body
.
HINT:
Perform "Inspection After Repair" after replacing the throttle body
.
6.
CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear DTCs
.
(e) Start the engine, and fully depress and release the accelerator pedal quickly (to fully open and
close the throttle valve).
(f) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(g) Read DTCs.
Result
RESULT
PROCEED TO
No DTC is output
A
P2111 or P2112 is output
B
B
REPLACE ECM
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2111,P2112;...
A
END
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2111,P2112;...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000PFW0XEX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2118; Throttle Actuator Control Motor Current
Range / Performance; 2015 MY Tundra [08/2014 - ]
DTC
P2118
Throttle Actuator Control Motor Current Range / Performance
DESCRIPTION
The ETCS (Electronic Throttle Control System) has a dedicated power supply circuit. The voltage (+BM) is
monitored and when it is low (less than 4 V), the ECM determines that there is a malfunction in the ETCS and
cuts off the current to the throttle actuator.
When the voltage becomes unstable, the ETCS itself becomes unstable. For this reason, when the voltage is
low, the current to the throttle actuator is cut. If repairs are made and the system returns to normal, turn the
ignition switch off. The ECM then allows the current to flow to the throttle actuator so that it can be restarted.
HINT:
The ETCS does not use a throttle cable.
DTC CODE
DTC DETECTION CONDITION
TROUBLE AREA
P2118
Open in ETCS power source (+BM) circuit
(1 trip detection logic)
Open in ETCS power source circuit
Battery
Battery terminals
ETCS fuse
ECM
MONITOR DESCRIPTION
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2118; Thrott...
The ECM monitors the battery supply voltage applied to the throttle actuator.
When the power supply voltage (+BM) drops below 4 V for 0.8 seconds or more, the ECM interprets this as an
open in the power supply circuit (+BM). The ECM illuminates the MIL and sets the DTC.
If the malfunction is not repaired successfully, the DTC is set 5 seconds after the engine is next started.
MONITOR STRATEGY
Related DTCs
P2118: Throttle actuator power supply
Required Sensors/Components (Main)
Throttle actuator, throttle valve, ETCS fuse
Required Sensors/Components (Related)
None
Duration
0.8 seconds
MIL Operation
Immediate
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs not present
None
Battery voltage
8 V or more
Electronic throttle actuator power
ON
TYPICAL MALFUNCTION THRESHOLDS
Throttle actuator power supply voltage (+BM)
Less than 4 V
COMPONENT OPERATING RANGE
Throttle actuator power supply voltage (+BM)
11 to 14 V
CONFIRMATION DRIVING PATTERN
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2118; Thrott...
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