Lexus ES: 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: -
Communication with ECM is operating normally, but engine control system is malfunctioning.
| -
Engine control system
-
4WD ECU assembly
|
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 |
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PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect
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