DTC P2118: Throttle Actuator Control Motor Current Range / Performance [09/2014 - 11/2017]: Procedure
WARNING: This page is about a different car, the 2017 Lexus RC 350, 2017 Lexus RC 300, 2016 Lexus RC 350, 2016 Lexus RC 300, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.
- READ VALUE USING TECHSTREAM (+BM VOLTAGE)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Data List / Gas Throttle / +BM Voltage.
Powertrain > Engine > Data List
Tester Display +BM Voltage - Read the value displayed on the Techstream.
Result
Result Proceed to Less than 4 V A 11 to 14 V B
Result:
B
CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS [09/2014 - 11/2017]
Result:
A
See step 2
- CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND)
- Disconnect the ECM connectors.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition F1-1 (+BM) - Body ground Always 11 to 14 V - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition F2-5 (ME01) - Body ground Always Below 1 Ω F4-1 (E1) - Body ground Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [09/2014 - 11/2017]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR