Read Value Of Intelligent Tester Rheostat

Total OBD & ECU Auto Diagnostics

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(a) Connect the intelligent tester to the DLC3.

(b) Turn the ignition switch ON and turn the tester ON.

(c) Select the item below in the Data List, and read the value displayed on the intelligent tester.

METER

METER

Item

Measurement Item / Range (Display)

Normal Condition

Diagnostic Note

RHEOSTAT (A/D)

Light control rheostat switch / Min.: 0, Max.: 255

Light brightness changes within specified range: Dark (0) to bright (255)

-

Light brightness can be changed within the specified range by actual operation.

Go to step 2

REPLACE COMBINATION METER ASSEMBLY

INSPECT FUSE (GAUGE)

Remove the GAUGE fuse from the main body ECU.

Measure the resistance.

Below 1 Q Reinstall the GAUGE fuse.

REPLACE FUSE

CHECK HARNESS AND CONNECTOR (FUSE (GAUGE) - LIGHT CONTROL RHEOSTAT)

Wire Harness Side:

Light Control Rheostat Connector

(a) Disconnect the D29 light control rheostat connector.

(b) Measure the voltage. Standard voltage nJ—in

Tester Connection

Condition

Specified Condition

D29-10 - Body ground

Ignition switch ON

11 to 14V

(c) Reconnect the light control rheostat connector.

5

4

3

2

1

,10

9

8

7

Go to step 5

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