DESCRIPTION
This DTC is output by the 4WD ECU assembly if a malfunction occurs in the linear solenoid power supply system.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
C120C | Linear Solenoid Power Supply System Malfunction |
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
HINT:
Check the condition of each related circuit connector before troubleshooting.
Click here
PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (IG1 TERMINAL) |
(a) Disconnect the R10 4WD ECU assembly connector.
(b) Turn the engine switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Switch Condition | Specified Condition |
---|---|---|
R10-3 (IG1) -Body ground | Engine switch on (IG) | 11 to 14 V |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. | CHECK HARNESS AND CONNECTOR (GND TERMINAL) |
(a) Turn the engine switch off.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
R10-4 (GND) -Body ground | Always | Below 1 Ω |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. | RECONFIRM DTC |
(a) Connect the R10 4WD ECU assembly connector.
(b) Clear the DTCs.
Click here
(c) Turn the engine switch off.
(d) Turn the engine switch on (IG).
(e) Check that no DTCs other than DTC C120C are output.
Click here
Result | Proceed to |
---|---|
DTCs other than C120C are not output | A |
DTCs other than C120C are output | B |
A | ![]() | REPLACE 4WD ECU ASSEMBLY |
B | ![]() | REPAIR CIRCUIT INDICATED BY OUTPUT CODE |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Fuel Tank: Installation
INSTALLATION PROCEDURE 1. INSTALL TANK SUCTION TUBE SUPPORT (a) Install a new tank suction tube support to the fuel tank assembly. HINT: Align the protrusions of the tank suction tube support with the notches of the fuel tank assembly. *a Protrusion *b Notch 2. INSTA ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Center Seat Outer Belt Assembly(w/ Rear No. 2 Seat): Installation
INSTALLATION PROCEDURE 1. INSTALL REAR CENTER SEAT OUTER BELT ASSEMBLY (a) Engage the 2 guides and temporarily install the rear center seat outer belt assembly with the 2 nuts. (b) Fully tighten the nut (A) and then the nut (B) to install rear center seat outer belt assembly. Torque: ...