Switch Lights of Remote Touch Always Illuminate or Cannot be Controlled Using Rheostat

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- Switch Lights of Remote Touch Always Illuminate or cannot be Controlled Using Rheostat

DESCRIPTION

Power is supplied to the remote touch illumination when the light control switch is in the tail or head position.

HINT
* When the remote touch is in self check mode, the switch illumination on the remote touch may remain on.
* When a malfunction such as an open in the indicator light wire sub-assembly (shift indicator light) occurs, it may not be possible to adjust the switch illumination of the remote touch using the rheostat.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK ILLUMINATION LIGHT

(a) Perform the following and check that the illumination controlled by the rheostat switch illuminates properly.

(1) If the vehicle is in a bright area, move it to a dark area.

HINT
When the vehicle is in a bright area, the switch illumination may not turn on due to the auto dimmer function.

(2) If the light control switch is in the AUTO position, turn the switch to the tail or head position.

HINT
If the light control switch is in the AUTO position, the switch illumination will not turn on unless the surrounding area is dark.

Result:

HINT
The shift lever indicator illumination and panel switch illumination are controlled by the rheostat switch. If either of these has a malfunction such as an open circuit, the switch illumination of the remote touch is affected and cannot be controlled by the rheostat switch.

B -- CONFIRM SYMPTOMS
A -- Continue to next step.

2. REPAIR OR REPLACE ILLUMINATION LIGHT

(a) Repair or replace the part with the malfunctioning illumination that is controlled by the rheostat switch.

NEXT -- Continue to next step.

3. CONFIRM SYMPTOMS

(a) Perform the following settings, operate the rheostat again, and check if illumination brightness adjustment is possible (including adjustment of other devices such as the radio receiver assembly).

(1) Check if the remote touch is in self check mode. If it is, cancel self check mode Operation Check.

HINT
When the remote touch is in self check mode, the switch illumination on the remote touch may remain on.

(2) If the vehicle is in a bright area, move it to a dark area.

HINT
When the vehicle is in a bright area, the switch illumination may not turn on due to the auto dimmer function.

(3) If the light control switch is in the AUTO position, turn the switch to the tail or head position.

HINT
If the light control switch is in the AUTO position, the switch illumination will not turn on unless the surrounding area is dark.

Result:

Text in Illustration

B -- GO TO METER / GAUGE SYSTEM How To Proceed With Troubleshooting

C -- END
A -- Continue to next step.

4. REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK)

(a) Activate self check mode Operation Check.

(b) Check switch illumination.

(1) Move the remote touch switch knob from the lower left to the upper right to check that the brightness of the switch illumination changes.

OK:

The brightness of the switch illumination changes according to remote touch switch knob operation.

Text in Illustration

NG -- REPLACE REMOTE TOUCH (REMOTE OPERATION BOARD) Disassembly
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR

(a) Disconnect the remote touch connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR

(a) Disconnect the remote touch connector.

(b) Disconnect the combination meter assembly connector.

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE REMOTE TOUCH (REMOTE OPERATION BOARD) Disassembly