Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Engine Circuit Malfunction (C1280)
DESCRIPTION
If a malfunction in the ECM circuit is detected, the 4WD ECU assembly stores this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1280 | Engine Circuit Malfunction | When the following continues for 5 seconds or more:
|
|
CAUTION / NOTICE / HINT
NOTICE:
When the 4WD ECU assembly is replaced with a known good one from another vehicle, it is necessary to perform calibration.
Click here .gif)
HINT:
Check the condition of each related circuit connector before troubleshooting.
Click here
PROCEDURE
| 1. | CHECK FOR DTC (SFI SYSTEM) |
(a) Check if SFI system DTCs are output.
Click here
| Result | Proceed to |
|---|---|
| SFI system DTCs are not output | A |
| SFI system DTCs are output | B |
| A | .gif) | REPLACE 4WD ECU ASSEMBLY |
| B | | GO TO SFI SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
Low or High Power Supply Voltage (C1241)
DESCRIPTION If a malfunction in the power source circuit occurs, or a communication malfunction with the skid control ECU (brake actuator assembly) or speed sensor occurs, the 4WD ECU assembly prohibi ...
ABS Malfunction (C1296)
DESCRIPTION If a malfunction in the speed sensor signal circuit or acceleration sensor (airbag sensor assembly*1 or yaw rate sensor assembly*2) circuit is detected, the 4WD ECU assembly stores this DT ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Rear Bumper (w/ Rear No. 2 Seat): Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE REAR CENTER ULTRASONIC SENSOR (w/ Intuitive Parking Assist System) Click here 2. REMOVE REAR CORNER ULTRASONIC SENSOR (w/ Intuitive Parking Assist System) Click here 3. REMOVE REAR CENTER ULTRASONIC SENSOR RETAINER (w/ Intuitive Parking Assist System) Click here ...
Chevrolet Trax (2013-2022) Owner's Manual > Exterior Care: Cleaning Exterior Lamps/
Lenses, Emblems, Decals and
Stripes
Use only lukewarm or cold water, a
soft cloth, and a car washing soap
to clean exterior lamps, lenses,
emblems, decals and stripes. Follow
instructions under "Washing the
Vehicle" previously in this section.
Lamp covers are made of plastic,
and some have a UV protective
coating. Do not clean or wip ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- Instrument cluster
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
- General
- Audio & Visual & Telematics
- Brake
- Drivetrain
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- Steering
- Suspension
- Vehicle Exterior
- Vehicle Interior
Chevrolet Trax (2013-2022) Owner's Manual
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