Lexus NX: Touch Pad Memory Module Malfunction (B155B)

DESCRIPTION

This DTC is stored if the remote operation controller assembly (remote touch) detects a malfunction in itself, such as internal hardware failure or touch pad memory module malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B155B

Touch Pad Memory Module Malfunction

Internal memory module malfunction

Remote operation controller assembly (remote touch)

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Click here

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Click here

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

CHECK INFORMATION CODE

(a) Check that the part number of the remote operation controller assembly (remote touch) is correct.

Result

Proceed to

The part number of the remote operation controller assembly (remote touch) is correct

A

The part number of the remote operation controller assembly (remote touch) is incorrect

B

B

REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH)

A

3.

REMOTE TOUCH SELF CHECK (CHECK TOUCH SCREEN OPERATION POSITION RECOGNITION CONDITION)

(a) Enter self-diagnostic mode.

Click here

(b) Operate the remote touch screen laterally and check that the 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 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 touch panel operation

A

The switch illumination changes but vibration feedback is not generated in accordance to touch screen operation

B

B

REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH)

A

4.

CHECK DTC

(a) Clear the DTCs.

Click here

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.

Click here

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH)

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