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 |  | USE SIMULATION METHOD TO CHECK |
|
| 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 engine switch off.
(c) Turn the engine 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) |
READ NEXT:
AV Signal Stoppage (Low Battery Voltage) (B158F)
DESCRIPTION This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the radio receiver assembly dropping temporarily. DTC No. Detection Item DTC Detection
Lost Communication with Haptic Device (B1323-B1326)
DESCRIPTION These DTCs are stored when communication between the radio receiver assembly and remote touch (remote operation controller assembly), combination meter assembly, headup display (meter mirr
NTSC Disconnected (from Park Assist/Monitoring ECU) (B1535,C1622)
DESCRIPTION These DTCs are stored if the radio receiver assembly judges that the signals or signal lines between the rear television camera assembly and the multi-display assembly are not normal as a
SEE MORE:
Components
COMPONENTS ILLUSTRATION *1 FRONT DOOR FRONT LOWER FRAME UPPER COVER *2 FRONT DOOR GLASS RUN *3 FRONT DOOR OUTSIDE MOULDING SUB-ASSEMBLY *4 FRONT DOOR REAR WINDOW FRAME MOULDING *5 FRONT DOOR WEATHERSTRIP *6 RIVET ● Non-reusable part - -
Installation
INSTALLATION 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 HOOD SUPPORT BRACKET (a) Engage the guide. (b) Install the hood support bracket with the bolt. Torque: 17.5 N·m {178 kgf·cm, 13 f
