Lexus ES: Engine Circuit Malfunction (C1280)
Lexus ES (XZ10) Service Manual / Drivetrain / Gf1a (transfer / 4wd / Awd) / Dynamic Torque Control Awd System / Engine Circuit Malfunction (C1280)
DESCRIPTION
If a malfunction in the ECM circuit occurs, the 4WD ECU assembly will output this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1280 | Engine Circuit Malfunction | When the following continues for 5 seconds or more:
|
|
PROCEDURE
| 1. | CHECK FOR DTC (ENGINE CONTROL SYSTEM) |
(a) Check if the engine control system DTC is output.
Powertrain > Engine > Trouble Codes| Result | Proceed to |
|---|---|
| Engine control system DTC is not output | A |
| Engine control system DTC is output | B |
| A | .gif) | REPLACE 4WD ECU ASSEMBLY |
.gif)
| B | | GO TO ENGINE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
READ NEXT:
ABS Malfunction (C1296)
DESCRIPTION If a malfunction in the speed sensor signal circuit or yaw rate and acceleration sensor (airbag ECU assembly) circuit occurs, the 4WD ECU assembly will output this DTC. The airbag ECU asse
Steering Angle Sensor (C1297)
DESCRIPTION The 4WD ECU assembly determines that the vehicle is turning based on the signals sent from the steering sensor. The steering sensor signal is sent to the 4WD ECU assembly via CAN communica
Linear Solenoid Circuit (C1298)
DESCRIPTION The 4WD ECU assembly receives signals from each sensor to control clutch fluid pressure for limiting the center differential operation, which distributes torque according to the driving co
SEE MORE:
Control Module Processor System Internal Failure (P060604,P060629,P06062A,P060647)
MONITOR DESCRIPTION The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from these CPUs are different and deviate from the standard, the ECM will illuminate the MIL and store a DTCs. DTC No. Detection Item DTC Detection
Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL HEADLIGHT SEAL (for TMC Made) HINT: Perform this procedure only when replacement of the headlight seal is necessary. (a) Clean the ins
© 2016-2024 Copyright www.lexguide.net
