Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001CPXT
Model Year Start: 2019 Model: GR Corolla Prod Date Range: [06/2018 -           ]
Title: METER / GAUGE / DISPLAY: LIGHT CONTROL RHEOSTAT: INSPECTION; 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]

INSPECTION

PROCEDURE

1. INSPECT LIGHT CONTROL RHEOSTAT

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (RV) - 2 (E)

Light control rheostat knob fully downwards (MIN.)

Below 50 Ω

Light control rheostat knob between MIN. and MAX.

The value changes gradually (Between 0 to 12 kΩ)

Light control rheostat knob fully upwards (MAX.)

8 to 12 kΩ

3 (TC) - 2 (E)

Light control rheostat knob not fully upward

8 to 12 kΩ

Light control rheostat knob fully upwards (Tail cancel switch is on)

1 MΩ or higher

If the result is not as specified, replace the light control rheostat switch.

*a

Component without harness connected

(Light Control Rheostat Switch)

(b) Illumination Inspection

(1) Apply auxiliary battery voltage to the light control rheostat switch and check that it illuminates.

OK:

Condition

Specified Condition

Auxiliary battery positive (+) → Terminal 6 (ILL+)

Auxiliary battery negative (-) → Terminal 1 (ILL-)

Illuminates

If the result is not as specified, replace the light control rheostat switch.

*a

Component without harness connected

(Light Control Rheostat Switch)