Lexus ES: Vehicle Information Unmatched (C168D)
DESCRIPTION
If the vehicle information stored in the main body ECU (multiplex network body ECU) which is sent via CAN communication during the clearance warning ECU assembly self-diagnosis does not match that of clearance warning ECU assembly, DTC C168D is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C168D | Vehicle Information Unmatched | Vehicle information does not match |
|
CAUTION / NOTICE / HINT
NOTICE:
-
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).
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- When continuing with the inspection, confirm that the necessary procedures (adjustment, calibration, initialization or registration) have been completed before proceeding.
PROCEDURE
| 1. | REGISTER VEHICLE INFORMATION |
(a) Perform the following procedure to register the vehicle information.
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|
| 2. | CHECK FOR DTC |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
HINT:
After turning the engine switch from off to on (IG), wait 4 seconds or more before checking for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes(b) Clear the DTCs according to the screen on the Techstream.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs(c) Recheck for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble CodesHINT:
If DTC C168D is still output after registering the vehicle information 3 times, replace the clearance warning ECU assembly.
| Result | Proceed to |
|---|---|
| DTC C168D is output | A |
| DTC C168D is not output | B |
| A |  | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
| B | | USE SIMULATION METHOD TO CHECK |
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Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Lane Control System DTC No. Detection Item Link C1A7496 Steering Vibrator Component Internal Failure U010087 Lost Communication with ECM/PCM "A" Missing Message U012587 Lost Communication with Multi-axis Acceleration Sensor Module Miss
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System (for Gasoline Model)
