Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Inspection

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Lighting (int) / Personal Light / Inspection

INSPECTION

PROCEDURE

1. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (for Normal Roof)

(a) Apply auxiliary battery voltage to the roof console box sub-assembly and check that the lights illuminate.

OK:

Map Light LH and Map Light RH

Measurement Condition

Condition

Specified Condition

Auxiliary battery positive (+) → 10 (+B1)

Auxiliary battery negative (-) → 11 (GND)

Dome light switch off and map light switch LH on

Map light LH illuminates

Dome light switch off and map light switch RH on

Map light RH illuminates

Map light switch LH and RH off and dome light switch on

Map light LH and RH illuminate

Auxiliary battery positive (+) → 10 (+B1)

Auxiliary battery negative (-) → 1 (DOOR)

Map light switch LH and RH off and door linked switch on

Map light LH and RH illuminate

Map light switch LH and RH off and door linked switch off

Map light LH and RH do not illuminate

Auxiliary battery positive (+) → 10 (+B1)

Auxiliary battery negative (-) → 2 (RLMP)

Map light switch LH and RH off

Map light LH and RH illuminate

Map light switch LH and RH on

Map light LH and RH do not illuminate

OK:

Switch Illumination and Shift Lever Illumination

Measurement Condition

Condition

Specified Condition

Auxiliary battery positive (+) → 20 (ILLB)

Auxiliary battery negative (-) → 13 (LILL)

Always

Switch illumination and shift lever illumination illuminate

If the result is not as specified, replace the roof console box sub-assembly.

*a

Component without harness connected

(Roof Console Box Sub-assembly)

2. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (for Moon Roof)

(a) Apply auxiliary battery voltage to the roof console box sub-assembly and check that the lights illuminate.

OK:

Map Light LH and Map Light RH

Measurement Condition

Condition

Specified Condition

Auxiliary battery positive (+) → 14 (+B1)

Auxiliary battery negative (-) → 15 (GND)

Dome light switch off and map light switch LH on

Map light LH illuminates

Dome light switch off and map light switch RH on

Map light RH illuminates

Map light switch LH and RH off and dome light switch on

Map light LH and RH illuminate

Auxiliary battery positive (+) → 14 (+B1)

Auxiliary battery negative (-) → 1 (DOOR)

Map light switch LH and RH off and door linked switch on

Map light LH and RH illuminate

Map light switch LH and RH off and door linked switch off

Map light LH and RH do not illuminate

Auxiliary battery positive (+) → 14 (+B1)

Auxiliary battery negative (-) → 2 (RLMP)

Map light switch LH and RH off

Map light LH and RH illuminate

Map light switch LH and RH on

Map light LH and RH do not illuminate

OK:

Switch Illumination and Shift Lever Illumination

Measurement Condition

Condition

Specified Condition

Auxiliary battery positive (+) → 28 (ILLB)

Auxiliary battery negative (-) → 17 (LILL)

Always

Switch illumination and shift lever illumination illuminate

If the result is not as specified, replace the roof console box sub-assembly.

*a

Component without harness connected

(Roof Console Box Sub-assembly)

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

Standard Resistance:

Mood switch

Tester Connection

Condition

Specified Condition

27 (+B2) - 15 (GND)*1

Mood switch on

Below 1 Ω

Mood switch off

10 kΩ or higher
  • *1: w/ Mood switch

If the result is not as specified, replace the roof console box sub-assembly.

    Components

    Installation

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Audio And Visual System(for Gasoline Model): Display does not Dim when Light Control Switch is Turned ON
    CAUTION / NOTICE / HINT NOTICE: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System. Click here When replacing the radio and display receiver assembly, ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

    © 2025 Copyright www.tavalon.net
    0.0216