Lexus ES: Touch Pad Memory Module Malfunction (B155B)
DESCRIPTION
This DTC is stored if the remote touch (remote operation controller assembly) detects a malfunction in itself, such as internal hardware failure or remote touch screen memory module malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B155B | Touch Pad Memory Module Malfunction | Internal memory module malfunction | Remote touch (remote operation controller assembly) |
PROCEDURE
| 1. | CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(b) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
|
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| 2. | CHECK INFORMATION CODE |
(a) Check that the part number of the remote touch (remote operation controller assembly) is correct.
| Result | Proceed to |
|---|---|
| The part number of the remote touch (remote operation controller assembly) is correct | A |
| The part number of the remote touch (remote operation controller assembly) is incorrect | B |
| B | | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
|
| 3. | REMOTE TOUCH SELF CHECK (CHECK REMOTE TOUCH SCREEN OPERATION POSITION RECOGNITION CONDITION) |
(a) Enter self-diagnostic mode.
Click here .gif)
(b) Operate the remote touch screen laterally and check that the remote touch screen generates vibration feedback.
NOTICE:
Since the remote touch screen may recognize a pinch in/out or flick operation if operated with 2 fingers, always use 1 finger to operate the remote touch screen in self-diagnostic mode.
HINT:
When operating at an excessively low temperature, vibration feedback may be difficult to feel.
| Result | Proceed to |
|---|---|
| Vibration feedback is generated according to remote touch screen operation | A |
| The switch illumination changes but vibration feedback is not generated in accordance to remote touch screen operation | B |
| B | | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
|
| 4. | CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(b) Turn the power switch off.
(c) Turn the power switch on (ACC) and wait for 5 seconds.
(d) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
| OK | | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
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Removal
REMOVAL CAUTION / NOTICE / HINT NOTICE: This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts. Click here PROCEDURE 1. REMOVE FRONT FENDER APRON SEAL RH Click here 2. REMOVE OIL PRESSURE CONTROL VALVE ASSEMBLY
Head-up display
The head-up display projects a variety of driving-related information
and the
operating state of the driving support systems on the windshield.
System components
Illustrations used in this text are intended as examples, and may differ from
the image that is
actually displayed by the head-u
